В этом задании мы опробуем разные методы контроля температуры (симуляции эффектов температуры) в молекулярной динамике.
Подготовим файлы координат и топологии этана для GROMACS.
(Файл топологии готовится за кадром.)
In [2]:
!wget http://kodomo.fbb.msu.ru/FBB/year_08/term6/etane.gro
--2017-12-15 19:13:28-- http://kodomo.fbb.msu.ru/FBB/year_08/term6/etane.gro Resolving kodomo.fbb.msu.ru (kodomo.fbb.msu.ru)... 93.180.63.127 Connecting to kodomo.fbb.msu.ru (kodomo.fbb.msu.ru)|93.180.63.127|:80... connected. HTTP request sent, awaiting response... 200 OK Length: 399 Saving to: `etane.gro' 100%[======================================>] 399 --.-K/s in 0s 2017-12-15 19:13:28 (43.1 MB/s) - `etane.gro' saved [399/399]
Возьмём 5 файлов параметров контроля температуры.
In [3]:
%%bash
wget http://kodomo.fbb.msu.ru/FBB/year_08/term6/be.mdp
wget http://kodomo.fbb.msu.ru/FBB/year_08/term6/vr.mdp
wget http://kodomo.fbb.msu.ru/FBB/year_08/term6/nh.mdp
wget http://kodomo.fbb.msu.ru/FBB/year_08/term6/an.mdp
wget http://kodomo.fbb.msu.ru/FBB/year_08/term6/sd.mdp
--2017-12-15 19:29:30-- http://kodomo.fbb.msu.ru/FBB/year_08/term6/be.mdp
Resolving kodomo.fbb.msu.ru (kodomo.fbb.msu.ru)... 93.180.63.127
Connecting to kodomo.fbb.msu.ru (kodomo.fbb.msu.ru)|93.180.63.127|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 1356 (1.3K)
Saving to: `be.mdp'
0K . 100% 103M=0s
2017-12-15 19:29:30 (103 MB/s) - `be.mdp' saved [1356/1356]
--2017-12-15 19:29:30-- http://kodomo.fbb.msu.ru/FBB/year_08/term6/vr.mdp
Resolving kodomo.fbb.msu.ru (kodomo.fbb.msu.ru)... 93.180.63.127
Connecting to kodomo.fbb.msu.ru (kodomo.fbb.msu.ru)|93.180.63.127|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 1427 (1.4K)
Saving to: `vr.mdp'
0K . 100% 157M=0s
2017-12-15 19:29:30 (157 MB/s) - `vr.mdp' saved [1427/1427]
--2017-12-15 19:29:30-- http://kodomo.fbb.msu.ru/FBB/year_08/term6/nh.mdp
Resolving kodomo.fbb.msu.ru (kodomo.fbb.msu.ru)... 93.180.63.127
Connecting to kodomo.fbb.msu.ru (kodomo.fbb.msu.ru)|93.180.63.127|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 1429 (1.4K)
Saving to: `nh.mdp'
0K . 100% 217M=0s
2017-12-15 19:29:30 (217 MB/s) - `nh.mdp' saved [1429/1429]
--2017-12-15 19:29:30-- http://kodomo.fbb.msu.ru/FBB/year_08/term6/an.mdp
Resolving kodomo.fbb.msu.ru (kodomo.fbb.msu.ru)... 93.180.63.127
Connecting to kodomo.fbb.msu.ru (kodomo.fbb.msu.ru)|93.180.63.127|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 1426 (1.4K)
Saving to: `an.mdp'
0K . 100% 170M=0s
2017-12-15 19:29:31 (170 MB/s) - `an.mdp' saved [1426/1426]
--2017-12-15 19:29:31-- http://kodomo.fbb.msu.ru/FBB/year_08/term6/sd.mdp
Resolving kodomo.fbb.msu.ru (kodomo.fbb.msu.ru)... 93.180.63.127
Connecting to kodomo.fbb.msu.ru (kodomo.fbb.msu.ru)|93.180.63.127|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 1441 (1.4K)
Saving to: `sd.mdp'
0K . 100% 185M=0s
2017-12-15 19:29:31 (185 MB/s) - `sd.mdp' saved [1441/1441]
TODO, для каждого метода контроля температуры:
- Построить графики изменения энергий по времени
In [91]:
%%bash
rm \#*
rm et_*
rm mdout.mdp
rm b.ndx
ls
an.mdp be.mdp bond_an.xvg bond_be.xvg bond_nh.xvg bond_sd.xvg bond_vr.xvg distance.xvg etane.gro etane.top nh.mdp sd.mdp Task8.ipynb vr.mdp
rm: cannot remove `#*': No such file or directory
In [92]:
%%bash
for s in `ls *.mdp | sed s/.mdp//`; do
grompp -f $s.mdp -c etane.gro -p etane.top -o et_$s.tpr
mdrun -deffnm et_$s -v -nt 1
echo 2 | trjconv -f et_$s.trr -s et_$s.tpr -o et_$s.pdb
echo "10 11 0" |
g_energy -f et_$s.edr -o et_${s}_en.xvg -xvg none
echo 2 | g_bond -f et_$s.trr -s et_$s.tpr -o bond_$s.xvg -n b.ndx -xvg none
done
:-) G R O M A C S (-:
Gnomes, ROck Monsters And Chili Sauce
:-) VERSION 4.5.5 (-:
Written by Emile Apol, Rossen Apostolov, Herman J.C. Berendsen,
Aldert van Buuren, Pär Bjelkmar, Rudi van Drunen, Anton Feenstra,
Gerrit Groenhof, Peter Kasson, Per Larsson, Pieter Meulenhoff,
Teemu Murtola, Szilard Pall, Sander Pronk, Roland Schulz,
Michael Shirts, Alfons Sijbers, Peter Tieleman,
Berk Hess, David van der Spoel, and Erik Lindahl.
Copyright (c) 1991-2000, University of Groningen, The Netherlands.
Copyright (c) 2001-2010, The GROMACS development team at
Uppsala University & The Royal Institute of Technology, Sweden.
check out http://www.gromacs.org for more information.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
:-) grompp (-:
Analysing residue names:
There are: 1 Other residues
Analysing residues not classified as Protein/DNA/RNA/Water and splitting into groups...
This run will generate roughly 8 Mb of data
Select group for output
Selected 2: 'ETH'
Statistics over 250001 steps [ 0.0000 through 250.0000 ps ], 2 data sets
All statistics are over 25001 points
Energy Average Err.Est. RMSD Tot-Drift
-------------------------------------------------------------------------------
Potential 0.624636 0.00064 0.316425 -0.00426816 (kJ/mol)
Kinetic En. 0.755444 0.00061 0.304535 -0.00401466 (kJ/mol)
You may want to use the -driftcorr flag in order to correct
for spurious drift in the graphs. Note that this is not
a substitute for proper equilibration and sampling!
You should select the temperature in order to obtain fluctuation properties.
:-) G R O M A C S (-:
GROningen Mixture of Alchemy and Childrens' Stories
:-) VERSION 4.5.5 (-:
Written by Emile Apol, Rossen Apostolov, Herman J.C. Berendsen,
Aldert van Buuren, Pär Bjelkmar, Rudi van Drunen, Anton Feenstra,
Gerrit Groenhof, Peter Kasson, Per Larsson, Pieter Meulenhoff,
Teemu Murtola, Szilard Pall, Sander Pronk, Roland Schulz,
Michael Shirts, Alfons Sijbers, Peter Tieleman,
Berk Hess, David van der Spoel, and Erik Lindahl.
Copyright (c) 1991-2000, University of Groningen, The Netherlands.
Copyright (c) 2001-2010, The GROMACS development team at
Uppsala University & The Royal Institute of Technology, Sweden.
check out http://www.gromacs.org for more information.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
:-) grompp (-:
Analysing residue names:
There are: 1 Other residues
Analysing residues not classified as Protein/DNA/RNA/Water and splitting into groups...
This run will generate roughly 8 Mb of data
Select group for output
Selected 2: 'ETH'
Statistics over 250001 steps [ 0.0000 through 250.0000 ps ], 2 data sets
All statistics are over 25001 points
Energy Average Err.Est. RMSD Tot-Drift
-------------------------------------------------------------------------------
Potential 26.2559 0.043 1.68907 0.252935 (kJ/mol)
Kinetic En. 26.1648 0.026 1.69347 0.155035 (kJ/mol)
You may want to use the -driftcorr flag in order to correct
for spurious drift in the graphs. Note that this is not
a substitute for proper equilibration and sampling!
You should select the temperature in order to obtain fluctuation properties.
:-) G R O M A C S (-:
Getting the Right Output Means no Artefacts in Calculating Stuff
:-) VERSION 4.5.5 (-:
Written by Emile Apol, Rossen Apostolov, Herman J.C. Berendsen,
Aldert van Buuren, Pär Bjelkmar, Rudi van Drunen, Anton Feenstra,
Gerrit Groenhof, Peter Kasson, Per Larsson, Pieter Meulenhoff,
Teemu Murtola, Szilard Pall, Sander Pronk, Roland Schulz,
Michael Shirts, Alfons Sijbers, Peter Tieleman,
Berk Hess, David van der Spoel, and Erik Lindahl.
Copyright (c) 1991-2000, University of Groningen, The Netherlands.
Copyright (c) 2001-2010, The GROMACS development team at
Uppsala University & The Royal Institute of Technology, Sweden.
check out http://www.gromacs.org for more information.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
:-) grompp (-:
Analysing residue names:
There are: 1 Other residues
Analysing residues not classified as Protein/DNA/RNA/Water and splitting into groups...
This run will generate roughly 8 Mb of data
Select group for output
Selected 2: 'ETH'
Statistics over 250001 steps [ 0.0000 through 250.0000 ps ], 2 data sets
All statistics are over 25001 points
Energy Average Err.Est. RMSD Tot-Drift
-------------------------------------------------------------------------------
Potential 12.6363 1.9 14.5293 8.11445 (kJ/mol)
Kinetic En. 25.967 0.026 37.1279 0.0883563 (kJ/mol)
You may want to use the -driftcorr flag in order to correct
for spurious drift in the graphs. Note that this is not
a substitute for proper equilibration and sampling!
You should select the temperature in order to obtain fluctuation properties.
:-) G R O M A C S (-:
GROningen MAchine for Chemical Simulation
:-) VERSION 4.5.5 (-:
Written by Emile Apol, Rossen Apostolov, Herman J.C. Berendsen,
Aldert van Buuren, Pär Bjelkmar, Rudi van Drunen, Anton Feenstra,
Gerrit Groenhof, Peter Kasson, Per Larsson, Pieter Meulenhoff,
Teemu Murtola, Szilard Pall, Sander Pronk, Roland Schulz,
Michael Shirts, Alfons Sijbers, Peter Tieleman,
Berk Hess, David van der Spoel, and Erik Lindahl.
Copyright (c) 1991-2000, University of Groningen, The Netherlands.
Copyright (c) 2001-2010, The GROMACS development team at
Uppsala University & The Royal Institute of Technology, Sweden.
check out http://www.gromacs.org for more information.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
:-) grompp (-:
Analysing residue names:
There are: 1 Other residues
Analysing residues not classified as Protein/DNA/RNA/Water and splitting into groups...
This run will generate roughly 8 Mb of data
Select group for output
Selected 2: 'ETH'
Statistics over 250001 steps [ 0.0000 through 250.0000 ps ], 2 data sets
All statistics are over 25001 points
Energy Average Err.Est. RMSD Tot-Drift
-------------------------------------------------------------------------------
Potential 23.1505 0.14 7.56996 -0.72843 (kJ/mol)
Kinetic En. 27.195 0.14 7.82841 -0.730403 (kJ/mol)
You may want to use the -driftcorr flag in order to correct
for spurious drift in the graphs. Note that this is not
a substitute for proper equilibration and sampling!
You should select the temperature in order to obtain fluctuation properties.
:-) G R O M A C S (-:
God Rules Over Mankind, Animals, Cosmos and Such
:-) VERSION 4.5.5 (-:
Written by Emile Apol, Rossen Apostolov, Herman J.C. Berendsen,
Aldert van Buuren, Pär Bjelkmar, Rudi van Drunen, Anton Feenstra,
Gerrit Groenhof, Peter Kasson, Per Larsson, Pieter Meulenhoff,
Teemu Murtola, Szilard Pall, Sander Pronk, Roland Schulz,
Michael Shirts, Alfons Sijbers, Peter Tieleman,
Berk Hess, David van der Spoel, and Erik Lindahl.
Copyright (c) 1991-2000, University of Groningen, The Netherlands.
Copyright (c) 2001-2010, The GROMACS development team at
Uppsala University & The Royal Institute of Technology, Sweden.
check out http://www.gromacs.org for more information.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
:-) grompp (-:
Analysing residue names:
There are: 1 Other residues
Analysing residues not classified as Protein/DNA/RNA/Water and splitting into groups...
This run will generate roughly 8 Mb of data
Select group for output
Selected 2: 'ETH'
Statistics over 250001 steps [ 0.0000 through 250.0000 ps ], 2 data sets
All statistics are over 25001 points
Energy Average Err.Est. RMSD Tot-Drift
-------------------------------------------------------------------------------
Potential 26.1169 0.25 8.13202 0.251803 (kJ/mol)
Kinetic En. 25.9265 0.22 7.75962 0.0698459 (kJ/mol)
You may want to use the -driftcorr flag in order to correct
for spurious drift in the graphs. Note that this is not
a substitute for proper equilibration and sampling!
You should select the temperature in order to obtain fluctuation properties.
Option Filename Type Description
------------------------------------------------------------
-f an.mdp Input grompp input file with MD parameters
-po mdout.mdp Output grompp input file with MD parameters
-c etane.gro Input Structure file: gro g96 pdb tpr etc.
-r conf.gro Input, Opt. Structure file: gro g96 pdb tpr etc.
-rb conf.gro Input, Opt. Structure file: gro g96 pdb tpr etc.
-n index.ndx Input, Opt. Index file
-p etane.top Input Topology file
-pp processed.top Output, Opt. Topology file
-o et_an.tpr Output Run input file: tpr tpb tpa
-t traj.trr Input, Opt. Full precision trajectory: trr trj cpt
-e ener.edr Input, Opt. Energy file
Option Type Value Description
------------------------------------------------------
-[no]h bool no Print help info and quit
-[no]version bool no Print version info and quit
-nice int 0 Set the nicelevel
-[no]v bool no Be loud and noisy
-time real -1 Take frame at or first after this time.
-[no]rmvsbds bool yes Remove constant bonded interactions with virtual
sites
-maxwarn int 0 Number of allowed warnings during input
processing. Not for normal use and may generate
unstable systems
-[no]zero bool no Set parameters for bonded interactions without
defaults to zero instead of generating an error
-[no]renum bool yes Renumber atomtypes and minimize number of
atomtypes
Ignoring obsolete mdp entry 'title'
Ignoring obsolete mdp entry 'cpp'
Replacing old mdp entry 'unconstrained-start' by 'continuation'
NOTE 1 [file an.mdp]:
nstcomm < nstcalcenergy defeats the purpose of nstcalcenergy, setting
nstcomm to nstcalcenergy
Generated 332520 of the 332520 non-bonded parameter combinations
Generating 1-4 interactions: fudge = 0.5
Generated 332520 of the 332520 1-4 parameter combinations
Excluding 3 bonded neighbours molecule type 'et'
NOTE 2 [file etane.top, line 77]:
System has non-zero total charge: 0.034500
Total charge should normally be an integer. See
http://www.gromacs.org/Documentation/Floating_Point_Arithmetic
for discussion on how close it should be to an integer.
Number of degrees of freedom in T-Coupling group System is 21.00
NOTE 3 [file an.mdp]:
You are using a plain Coulomb cut-off, which might produce artifacts.
You might want to consider using PME electrostatics.
There were 3 notes
gcq#156: "Rub It Right Accross Your Eyes" (F. Zappa)
:-) G R O M A C S (-:
Gnomes, ROck Monsters And Chili Sauce
:-) VERSION 4.5.5 (-:
Written by Emile Apol, Rossen Apostolov, Herman J.C. Berendsen,
Aldert van Buuren, Pär Bjelkmar, Rudi van Drunen, Anton Feenstra,
Gerrit Groenhof, Peter Kasson, Per Larsson, Pieter Meulenhoff,
Teemu Murtola, Szilard Pall, Sander Pronk, Roland Schulz,
Michael Shirts, Alfons Sijbers, Peter Tieleman,
Berk Hess, David van der Spoel, and Erik Lindahl.
Copyright (c) 1991-2000, University of Groningen, The Netherlands.
Copyright (c) 2001-2010, The GROMACS development team at
Uppsala University & The Royal Institute of Technology, Sweden.
check out http://www.gromacs.org for more information.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
:-) mdrun (-:
Option Filename Type Description
------------------------------------------------------------
-s et_an.tpr Input Run input file: tpr tpb tpa
-o et_an.trr Output Full precision trajectory: trr trj cpt
-x et_an.xtc Output, Opt. Compressed trajectory (portable xdr format)
-cpi et_an.cpt Input, Opt. Checkpoint file
-cpo et_an.cpt Output, Opt. Checkpoint file
-c et_an.gro Output Structure file: gro g96 pdb etc.
-e et_an.edr Output Energy file
-g et_an.log Output Log file
-dhdl et_an.xvg Output, Opt. xvgr/xmgr file
-field et_an.xvg Output, Opt. xvgr/xmgr file
-table et_an.xvg Input, Opt. xvgr/xmgr file
-tablep et_an.xvg Input, Opt. xvgr/xmgr file
-tableb et_an.xvg Input, Opt. xvgr/xmgr file
-rerun et_an.xtc Input, Opt. Trajectory: xtc trr trj gro g96 pdb cpt
-tpi et_an.xvg Output, Opt. xvgr/xmgr file
-tpid et_an.xvg Output, Opt. xvgr/xmgr file
-ei et_an.edi Input, Opt. ED sampling input
-eo et_an.edo Output, Opt. ED sampling output
-j et_an.gct Input, Opt. General coupling stuff
-jo et_an.gct Output, Opt. General coupling stuff
-ffout et_an.xvg Output, Opt. xvgr/xmgr file
-devout et_an.xvg Output, Opt. xvgr/xmgr file
-runav et_an.xvg Output, Opt. xvgr/xmgr file
-px et_an.xvg Output, Opt. xvgr/xmgr file
-pf et_an.xvg Output, Opt. xvgr/xmgr file
-mtx et_an.mtx Output, Opt. Hessian matrix
-dn et_an.ndx Output, Opt. Index file
-multidir et_an Input, Opt., Mult. Run directory
Option Type Value Description
------------------------------------------------------
-[no]h bool no Print help info and quit
-[no]version bool no Print version info and quit
-nice int 0 Set the nicelevel
-deffnm string et_an Set the default filename for all file options
-xvg enum xmgrace xvg plot formatting: xmgrace, xmgr or none
-[no]pd bool no Use particle decompostion
-dd vector 0 0 0 Domain decomposition grid, 0 is optimize
-nt int 1 Number of threads to start (0 is guess)
-npme int -1 Number of separate nodes to be used for PME, -1
is guess
-ddorder enum interleave DD node order: interleave, pp_pme or cartesian
-[no]ddcheck bool yes Check for all bonded interactions with DD
-rdd real 0 The maximum distance for bonded interactions with
DD (nm), 0 is determine from initial coordinates
-rcon real 0 Maximum distance for P-LINCS (nm), 0 is estimate
-dlb enum auto Dynamic load balancing (with DD): auto, no or yes
-dds real 0.8 Minimum allowed dlb scaling of the DD cell size
-gcom int -1 Global communication frequency
-[no]v bool yes Be loud and noisy
-[no]compact bool yes Write a compact log file
-[no]seppot bool no Write separate V and dVdl terms for each
interaction type and node to the log file(s)
-pforce real -1 Print all forces larger than this (kJ/mol nm)
-[no]reprod bool no Try to avoid optimizations that affect binary
reproducibility
-cpt real 15 Checkpoint interval (minutes)
-[no]cpnum bool no Keep and number checkpoint files
-[no]append bool yes Append to previous output files when continuing
from checkpoint instead of adding the simulation
part number to all file names
-maxh real -1 Terminate after 0.99 times this time (hours)
-multi int 0 Do multiple simulations in parallel
-replex int 0 Attempt replica exchange every # steps
-reseed int -1 Seed for replica exchange, -1 is generate a seed
-[no]ionize bool no Do a simulation including the effect of an X-Ray
bombardment on your system
Getting Loaded...
Reading file et_an.tpr, VERSION 4.5.5 (single precision)
Loaded with Money
starting mdrun 'first one'
250000 steps, 250.0 ps.
step 249900, remaining runtime: 0 s
Writing final coordinates.
step 250000, remaining runtime: 0 s
NODE (s) Real (s) (%)
Time: 2.910 3.243 89.7
(Mnbf/s) (MFlops) (ns/day) (hour/ns)
Performance: 0.000 513.104 7422.711 0.003
gcq#250: "Everything Must Go" (Red Hot Chili Peppers)
:-) G R O M A C S (-:
GROningen Mixture of Alchemy and Childrens' Stories
:-) VERSION 4.5.5 (-:
Written by Emile Apol, Rossen Apostolov, Herman J.C. Berendsen,
Aldert van Buuren, Pär Bjelkmar, Rudi van Drunen, Anton Feenstra,
Gerrit Groenhof, Peter Kasson, Per Larsson, Pieter Meulenhoff,
Teemu Murtola, Szilard Pall, Sander Pronk, Roland Schulz,
Michael Shirts, Alfons Sijbers, Peter Tieleman,
Berk Hess, David van der Spoel, and Erik Lindahl.
Copyright (c) 1991-2000, University of Groningen, The Netherlands.
Copyright (c) 2001-2010, The GROMACS development team at
Uppsala University & The Royal Institute of Technology, Sweden.
check out http://www.gromacs.org for more information.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
:-) trjconv (-:
Option Filename Type Description
------------------------------------------------------------
-f et_an.trr Input Trajectory: xtc trr trj gro g96 pdb cpt
-o et_an.pdb Output Trajectory: xtc trr trj gro g96 pdb
-s et_an.tpr Input, Opt! Structure+mass(db): tpr tpb tpa gro g96 pdb
-n index.ndx Input, Opt. Index file
-fr frames.ndx Input, Opt. Index file
-sub cluster.ndx Input, Opt. Index file
-drop drop.xvg Input, Opt. xvgr/xmgr file
Option Type Value Description
------------------------------------------------------
-[no]h bool no Print help info and quit
-[no]version bool no Print version info and quit
-nice int 19 Set the nicelevel
-b time 0 First frame (ps) to read from trajectory
-e time 0 Last frame (ps) to read from trajectory
-tu enum ps Time unit: fs, ps, ns, us, ms or s
-[no]w bool no View output .xvg, .xpm, .eps and .pdb files
-xvg enum xmgrace xvg plot formatting: xmgrace, xmgr or none
-skip int 1 Only write every nr-th frame
-dt time 0 Only write frame when t MOD dt = first time (ps)
-[no]round bool no Round measurements to nearest picosecond
-dump time -1 Dump frame nearest specified time (ps)
-t0 time 0 Starting time (ps) (default: don't change)
-timestep time 0 Change time step between input frames (ps)
-pbc enum none PBC treatment (see help text for full
description): none, mol, res, atom, nojump,
cluster or whole
-ur enum rect Unit-cell representation: rect, tric or compact
-[no]center bool no Center atoms in box
-boxcenter enum tric Center for -pbc and -center: tric, rect or zero
-box vector 0 0 0 Size for new cubic box (default: read from input)
-clustercenter vector 0 0 0 Optional starting point for pbc cluster option
-trans vector 0 0 0 All coordinates will be translated by trans. This
can advantageously be combined with -pbc mol -ur
compact.
-shift vector 0 0 0 All coordinates will be shifted by framenr*shift
-fit enum none Fit molecule to ref structure in the structure
file: none, rot+trans, rotxy+transxy,
translation, transxy or progressive
-ndec int 3 Precision for .xtc and .gro writing in number of
decimal places
-[no]vel bool yes Read and write velocities if possible
-[no]force bool no Read and write forces if possible
-trunc time -1 Truncate input trajectory file after this time
(ps)
-exec string Execute command for every output frame with the
frame number as argument
-[no]app bool no Append output
-split time 0 Start writing new file when t MOD split = first
time (ps)
-[no]sep bool no Write each frame to a separate .gro, .g96 or .pdb
file
-nzero int 0 If the -sep flag is set, use these many digits
for the file numbers and prepend zeros as needed
-dropunder real 0 Drop all frames below this value
-dropover real 0 Drop all frames above this value
-[no]conect bool no Add conect records when writing .pdb files.
Useful for visualization of non-standard
molecules, e.g. coarse grained ones
Will write pdb: Protein data bank file
Reading file et_an.tpr, VERSION 4.5.5 (single precision)
Reading file et_an.tpr, VERSION 4.5.5 (single precision)
Group 0 ( System) has 8 elements
Group 1 ( Other) has 8 elements
Group 2 ( ETH) has 8 elements
Select a group: trn version: GMX_trn_file (single precision)
-> frame 250 time 250.000
gcq#250: "Everything Must Go" (Red Hot Chili Peppers)
:-) G R O M A C S (-:
GROningen Mixture of Alchemy and Childrens' Stories
:-) VERSION 4.5.5 (-:
Written by Emile Apol, Rossen Apostolov, Herman J.C. Berendsen,
Aldert van Buuren, Pär Bjelkmar, Rudi van Drunen, Anton Feenstra,
Gerrit Groenhof, Peter Kasson, Per Larsson, Pieter Meulenhoff,
Teemu Murtola, Szilard Pall, Sander Pronk, Roland Schulz,
Michael Shirts, Alfons Sijbers, Peter Tieleman,
Berk Hess, David van der Spoel, and Erik Lindahl.
Copyright (c) 1991-2000, University of Groningen, The Netherlands.
Copyright (c) 2001-2010, The GROMACS development team at
Uppsala University & The Royal Institute of Technology, Sweden.
check out http://www.gromacs.org for more information.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
:-) g_energy (-:
Option Filename Type Description
------------------------------------------------------------
-f et_an.edr Input Energy file
-f2 ener.edr Input, Opt. Energy file
-s topol.tpr Input, Opt. Run input file: tpr tpb tpa
-o et_an_en.xvg Output xvgr/xmgr file
-viol violaver.xvg Output, Opt. xvgr/xmgr file
-pairs pairs.xvg Output, Opt. xvgr/xmgr file
-ora orienta.xvg Output, Opt. xvgr/xmgr file
-ort orientt.xvg Output, Opt. xvgr/xmgr file
-oda orideva.xvg Output, Opt. xvgr/xmgr file
-odr oridevr.xvg Output, Opt. xvgr/xmgr file
-odt oridevt.xvg Output, Opt. xvgr/xmgr file
-oten oriten.xvg Output, Opt. xvgr/xmgr file
-corr enecorr.xvg Output, Opt. xvgr/xmgr file
-vis visco.xvg Output, Opt. xvgr/xmgr file
-ravg runavgdf.xvg Output, Opt. xvgr/xmgr file
-odh dhdl.xvg Output, Opt. xvgr/xmgr file
Option Type Value Description
------------------------------------------------------
-[no]h bool no Print help info and quit
-[no]version bool no Print version info and quit
-nice int 19 Set the nicelevel
-b time 0 First frame (ps) to read from trajectory
-e time 0 Last frame (ps) to read from trajectory
-[no]w bool no View output .xvg, .xpm, .eps and .pdb files
-xvg enum none xvg plot formatting: xmgrace, xmgr or none
-[no]fee bool no Do a free energy estimate
-fetemp real 300 Reference temperature for free energy calculation
-zero real 0 Subtract a zero-point energy
-[no]sum bool no Sum the energy terms selected rather than display
them all
-[no]dp bool no Print energies in high precision
-nbmin int 5 Minimum number of blocks for error estimate
-nbmax int 5 Maximum number of blocks for error estimate
-[no]mutot bool no Compute the total dipole moment from the
components
-skip int 0 Skip number of frames between data points
-[no]aver bool no Also print the exact average and rmsd stored in
the energy frames (only when 1 term is requested)
-nmol int 1 Number of molecules in your sample: the energies
are divided by this number
-[no]driftcorr bool no Useful only for calculations of fluctuation
properties. The drift in the observables will be
subtracted before computing the fluctuation
properties.
-[no]fluc bool no Calculate autocorrelation of energy fluctuations
rather than energy itself
-[no]orinst bool no Analyse instantaneous orientation data
-[no]ovec bool no Also plot the eigenvectors with -oten
-acflen int -1 Length of the ACF, default is half the number of
frames
-[no]normalize bool yes Normalize ACF
-P enum 0 Order of Legendre polynomial for ACF (0 indicates
none): 0, 1, 2 or 3
-fitfn enum none Fit function: none, exp, aexp, exp_exp, vac,
exp5, exp7, exp9 or erffit
-ncskip int 0 Skip N points in the output file of correlation
functions
-beginfit real 0 Time where to begin the exponential fit of the
correlation function
-endfit real -1 Time where to end the exponential fit of the
correlation function, -1 is until the end
Opened et_an.edr as single precision energy file
Select the terms you want from the following list by
selecting either (part of) the name or the number or a combination.
End your selection with an empty line or a zero.
-------------------------------------------------------------------
1 Bond 2 Angle 3 Ryckaert-Bell. 4 LJ-14
5 Coulomb-14 6 LJ-(SR) 7 LJ-(LR) 8 Coulomb-(SR)
9 Coulomb-(LR) 10 Potential 11 Kinetic-En. 12 Total-Energy
13 Temperature 14 Pressure 15 Vir-XX 16 Vir-XY
17 Vir-XZ 18 Vir-YX 19 Vir-YY 20 Vir-YZ
21 Vir-ZX 22 Vir-ZY 23 Vir-ZZ 24 Pres-XX
25 Pres-XY 26 Pres-XZ 27 Pres-YX 28 Pres-YY
29 Pres-YZ 30 Pres-ZX 31 Pres-ZY 32 Pres-ZZ
33 #Surf*SurfTen 34 Mu-X 35 Mu-Y 36 Mu-Z
37 T-System
Last energy frame read 2500 time 250.000
gcq#250: "Everything Must Go" (Red Hot Chili Peppers)
:-) G R O M A C S (-:
GROningen Mixture of Alchemy and Childrens' Stories
:-) VERSION 4.5.5 (-:
Written by Emile Apol, Rossen Apostolov, Herman J.C. Berendsen,
Aldert van Buuren, Pär Bjelkmar, Rudi van Drunen, Anton Feenstra,
Gerrit Groenhof, Peter Kasson, Per Larsson, Pieter Meulenhoff,
Teemu Murtola, Szilard Pall, Sander Pronk, Roland Schulz,
Michael Shirts, Alfons Sijbers, Peter Tieleman,
Berk Hess, David van der Spoel, and Erik Lindahl.
Copyright (c) 1991-2000, University of Groningen, The Netherlands.
Copyright (c) 2001-2010, The GROMACS development team at
Uppsala University & The Royal Institute of Technology, Sweden.
check out http://www.gromacs.org for more information.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
:-) g_bond (-:
Option Filename Type Description
------------------------------------------------------------
-f et_an.trr Input Trajectory: xtc trr trj gro g96 pdb cpt
-n b.ndx Input Index file
-s et_an.tpr Input, Opt! Structure+mass(db): tpr tpb tpa gro g96 pdb
-o bond_an.xvg Output xvgr/xmgr file
-l bonds.log Output, Opt. Log file
-d distance.xvg Output, Opt. xvgr/xmgr file
Option Type Value Description
------------------------------------------------------
-[no]h bool no Print help info and quit
-[no]version bool no Print version info and quit
-nice int 19 Set the nicelevel
-b time 0 First frame (ps) to read from trajectory
-e time 0 Last frame (ps) to read from trajectory
-dt time 0 Only use frame when t MOD dt = first time (ps)
-[no]w bool no View output .xvg, .xpm, .eps and .pdb files
-xvg enum none xvg plot formatting: xmgrace, xmgr or none
-blen real -1 Bond length. By default length of first bond
-tol real 0.1 Half width of distribution as fraction of blen
-[no]aver bool yes Average bond length distributions
-[no]averdist bool yes Average distances (turns on -d)
-------------------------------------------------------
Program g_bond, VERSION 4.5.5
Source code file: /build/buildd/gromacs-4.5.5/src/gmxlib/futil.c, line: 491
File input/output error:
b.ndx
For more information and tips for troubleshooting, please check the GROMACS
website at http://www.gromacs.org/Documentation/Errors
-------------------------------------------------------
"Everything Must Go" (Red Hot Chili Peppers)
Option Filename Type Description
------------------------------------------------------------
-f be.mdp Input grompp input file with MD parameters
-po mdout.mdp Output grompp input file with MD parameters
-c etane.gro Input Structure file: gro g96 pdb tpr etc.
-r conf.gro Input, Opt. Structure file: gro g96 pdb tpr etc.
-rb conf.gro Input, Opt. Structure file: gro g96 pdb tpr etc.
-n index.ndx Input, Opt. Index file
-p etane.top Input Topology file
-pp processed.top Output, Opt. Topology file
-o et_be.tpr Output Run input file: tpr tpb tpa
-t traj.trr Input, Opt. Full precision trajectory: trr trj cpt
-e ener.edr Input, Opt. Energy file
Option Type Value Description
------------------------------------------------------
-[no]h bool no Print help info and quit
-[no]version bool no Print version info and quit
-nice int 0 Set the nicelevel
-[no]v bool no Be loud and noisy
-time real -1 Take frame at or first after this time.
-[no]rmvsbds bool yes Remove constant bonded interactions with virtual
sites
-maxwarn int 0 Number of allowed warnings during input
processing. Not for normal use and may generate
unstable systems
-[no]zero bool no Set parameters for bonded interactions without
defaults to zero instead of generating an error
-[no]renum bool yes Renumber atomtypes and minimize number of
atomtypes
Ignoring obsolete mdp entry 'title'
Ignoring obsolete mdp entry 'cpp'
Replacing old mdp entry 'unconstrained-start' by 'continuation'
Back Off! I just backed up mdout.mdp to ./#mdout.mdp.1#
NOTE 1 [file be.mdp]:
nstcomm < nstcalcenergy defeats the purpose of nstcalcenergy, setting
nstcomm to nstcalcenergy
NOTE 2 [file be.mdp]:
The Berendsen thermostat does not generate the correct kinetic energy
distribution. You might want to consider using the V-rescale thermostat.
Generated 332520 of the 332520 non-bonded parameter combinations
Generating 1-4 interactions: fudge = 0.5
Generated 332520 of the 332520 1-4 parameter combinations
Excluding 3 bonded neighbours molecule type 'et'
NOTE 3 [file etane.top, line 77]:
System has non-zero total charge: 0.034500
Total charge should normally be an integer. See
http://www.gromacs.org/Documentation/Floating_Point_Arithmetic
for discussion on how close it should be to an integer.
Number of degrees of freedom in T-Coupling group System is 21.00
NOTE 4 [file be.mdp]:
You are using a plain Coulomb cut-off, which might produce artifacts.
You might want to consider using PME electrostatics.
There were 4 notes
gcq#250: "Everything Must Go" (Red Hot Chili Peppers)
:-) G R O M A C S (-:
GROningen Mixture of Alchemy and Childrens' Stories
:-) VERSION 4.5.5 (-:
Written by Emile Apol, Rossen Apostolov, Herman J.C. Berendsen,
Aldert van Buuren, Pär Bjelkmar, Rudi van Drunen, Anton Feenstra,
Gerrit Groenhof, Peter Kasson, Per Larsson, Pieter Meulenhoff,
Teemu Murtola, Szilard Pall, Sander Pronk, Roland Schulz,
Michael Shirts, Alfons Sijbers, Peter Tieleman,
Berk Hess, David van der Spoel, and Erik Lindahl.
Copyright (c) 1991-2000, University of Groningen, The Netherlands.
Copyright (c) 2001-2010, The GROMACS development team at
Uppsala University & The Royal Institute of Technology, Sweden.
check out http://www.gromacs.org for more information.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
:-) mdrun (-:
Option Filename Type Description
------------------------------------------------------------
-s et_be.tpr Input Run input file: tpr tpb tpa
-o et_be.trr Output Full precision trajectory: trr trj cpt
-x et_be.xtc Output, Opt. Compressed trajectory (portable xdr format)
-cpi et_be.cpt Input, Opt. Checkpoint file
-cpo et_be.cpt Output, Opt. Checkpoint file
-c et_be.gro Output Structure file: gro g96 pdb etc.
-e et_be.edr Output Energy file
-g et_be.log Output Log file
-dhdl et_be.xvg Output, Opt. xvgr/xmgr file
-field et_be.xvg Output, Opt. xvgr/xmgr file
-table et_be.xvg Input, Opt. xvgr/xmgr file
-tablep et_be.xvg Input, Opt. xvgr/xmgr file
-tableb et_be.xvg Input, Opt. xvgr/xmgr file
-rerun et_be.xtc Input, Opt. Trajectory: xtc trr trj gro g96 pdb cpt
-tpi et_be.xvg Output, Opt. xvgr/xmgr file
-tpid et_be.xvg Output, Opt. xvgr/xmgr file
-ei et_be.edi Input, Opt. ED sampling input
-eo et_be.edo Output, Opt. ED sampling output
-j et_be.gct Input, Opt. General coupling stuff
-jo et_be.gct Output, Opt. General coupling stuff
-ffout et_be.xvg Output, Opt. xvgr/xmgr file
-devout et_be.xvg Output, Opt. xvgr/xmgr file
-runav et_be.xvg Output, Opt. xvgr/xmgr file
-px et_be.xvg Output, Opt. xvgr/xmgr file
-pf et_be.xvg Output, Opt. xvgr/xmgr file
-mtx et_be.mtx Output, Opt. Hessian matrix
-dn et_be.ndx Output, Opt. Index file
-multidir et_be Input, Opt., Mult. Run directory
Option Type Value Description
------------------------------------------------------
-[no]h bool no Print help info and quit
-[no]version bool no Print version info and quit
-nice int 0 Set the nicelevel
-deffnm string et_be Set the default filename for all file options
-xvg enum xmgrace xvg plot formatting: xmgrace, xmgr or none
-[no]pd bool no Use particle decompostion
-dd vector 0 0 0 Domain decomposition grid, 0 is optimize
-nt int 1 Number of threads to start (0 is guess)
-npme int -1 Number of separate nodes to be used for PME, -1
is guess
-ddorder enum interleave DD node order: interleave, pp_pme or cartesian
-[no]ddcheck bool yes Check for all bonded interactions with DD
-rdd real 0 The maximum distance for bonded interactions with
DD (nm), 0 is determine from initial coordinates
-rcon real 0 Maximum distance for P-LINCS (nm), 0 is estimate
-dlb enum auto Dynamic load balancing (with DD): auto, no or yes
-dds real 0.8 Minimum allowed dlb scaling of the DD cell size
-gcom int -1 Global communication frequency
-[no]v bool yes Be loud and noisy
-[no]compact bool yes Write a compact log file
-[no]seppot bool no Write separate V and dVdl terms for each
interaction type and node to the log file(s)
-pforce real -1 Print all forces larger than this (kJ/mol nm)
-[no]reprod bool no Try to avoid optimizations that affect binary
reproducibility
-cpt real 15 Checkpoint interval (minutes)
-[no]cpnum bool no Keep and number checkpoint files
-[no]append bool yes Append to previous output files when continuing
from checkpoint instead of adding the simulation
part number to all file names
-maxh real -1 Terminate after 0.99 times this time (hours)
-multi int 0 Do multiple simulations in parallel
-replex int 0 Attempt replica exchange every # steps
-reseed int -1 Seed for replica exchange, -1 is generate a seed
-[no]ionize bool no Do a simulation including the effect of an X-Ray
bombardment on your system
Getting Loaded...
Reading file et_be.tpr, VERSION 4.5.5 (single precision)
Loaded with Money
starting mdrun 'first one'
250000 steps, 250.0 ps.
step 249900, remaining runtime: 0 s
Writing final coordinates.
step 250000, remaining runtime: 0 s
NODE (s) Real (s) (%)
Time: 2.960 3.810 77.7
(Mnbf/s) (MFlops) (ns/day) (hour/ns)
Performance: 0.000 504.122 7297.327 0.003
gcq#344: "Come on boys, Let's push it hard" (P.J. Harvey)
:-) G R O M A C S (-:
Getting the Right Output Means no Artefacts in Calculating Stuff
:-) VERSION 4.5.5 (-:
Written by Emile Apol, Rossen Apostolov, Herman J.C. Berendsen,
Aldert van Buuren, Pär Bjelkmar, Rudi van Drunen, Anton Feenstra,
Gerrit Groenhof, Peter Kasson, Per Larsson, Pieter Meulenhoff,
Teemu Murtola, Szilard Pall, Sander Pronk, Roland Schulz,
Michael Shirts, Alfons Sijbers, Peter Tieleman,
Berk Hess, David van der Spoel, and Erik Lindahl.
Copyright (c) 1991-2000, University of Groningen, The Netherlands.
Copyright (c) 2001-2010, The GROMACS development team at
Uppsala University & The Royal Institute of Technology, Sweden.
check out http://www.gromacs.org for more information.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
:-) trjconv (-:
Option Filename Type Description
------------------------------------------------------------
-f et_be.trr Input Trajectory: xtc trr trj gro g96 pdb cpt
-o et_be.pdb Output Trajectory: xtc trr trj gro g96 pdb
-s et_be.tpr Input, Opt! Structure+mass(db): tpr tpb tpa gro g96 pdb
-n index.ndx Input, Opt. Index file
-fr frames.ndx Input, Opt. Index file
-sub cluster.ndx Input, Opt. Index file
-drop drop.xvg Input, Opt. xvgr/xmgr file
Option Type Value Description
------------------------------------------------------
-[no]h bool no Print help info and quit
-[no]version bool no Print version info and quit
-nice int 19 Set the nicelevel
-b time 0 First frame (ps) to read from trajectory
-e time 0 Last frame (ps) to read from trajectory
-tu enum ps Time unit: fs, ps, ns, us, ms or s
-[no]w bool no View output .xvg, .xpm, .eps and .pdb files
-xvg enum xmgrace xvg plot formatting: xmgrace, xmgr or none
-skip int 1 Only write every nr-th frame
-dt time 0 Only write frame when t MOD dt = first time (ps)
-[no]round bool no Round measurements to nearest picosecond
-dump time -1 Dump frame nearest specified time (ps)
-t0 time 0 Starting time (ps) (default: don't change)
-timestep time 0 Change time step between input frames (ps)
-pbc enum none PBC treatment (see help text for full
description): none, mol, res, atom, nojump,
cluster or whole
-ur enum rect Unit-cell representation: rect, tric or compact
-[no]center bool no Center atoms in box
-boxcenter enum tric Center for -pbc and -center: tric, rect or zero
-box vector 0 0 0 Size for new cubic box (default: read from input)
-clustercenter vector 0 0 0 Optional starting point for pbc cluster option
-trans vector 0 0 0 All coordinates will be translated by trans. This
can advantageously be combined with -pbc mol -ur
compact.
-shift vector 0 0 0 All coordinates will be shifted by framenr*shift
-fit enum none Fit molecule to ref structure in the structure
file: none, rot+trans, rotxy+transxy,
translation, transxy or progressive
-ndec int 3 Precision for .xtc and .gro writing in number of
decimal places
-[no]vel bool yes Read and write velocities if possible
-[no]force bool no Read and write forces if possible
-trunc time -1 Truncate input trajectory file after this time
(ps)
-exec string Execute command for every output frame with the
frame number as argument
-[no]app bool no Append output
-split time 0 Start writing new file when t MOD split = first
time (ps)
-[no]sep bool no Write each frame to a separate .gro, .g96 or .pdb
file
-nzero int 0 If the -sep flag is set, use these many digits
for the file numbers and prepend zeros as needed
-dropunder real 0 Drop all frames below this value
-dropover real 0 Drop all frames above this value
-[no]conect bool no Add conect records when writing .pdb files.
Useful for visualization of non-standard
molecules, e.g. coarse grained ones
Will write pdb: Protein data bank file
Reading file et_be.tpr, VERSION 4.5.5 (single precision)
Reading file et_be.tpr, VERSION 4.5.5 (single precision)
Group 0 ( System) has 8 elements
Group 1 ( Other) has 8 elements
Group 2 ( ETH) has 8 elements
Select a group: trn version: GMX_trn_file (single precision)
-> frame 250 time 250.000
gcq#344: "Come on boys, Let's push it hard" (P.J. Harvey)
:-) G R O M A C S (-:
Getting the Right Output Means no Artefacts in Calculating Stuff
:-) VERSION 4.5.5 (-:
Written by Emile Apol, Rossen Apostolov, Herman J.C. Berendsen,
Aldert van Buuren, Pär Bjelkmar, Rudi van Drunen, Anton Feenstra,
Gerrit Groenhof, Peter Kasson, Per Larsson, Pieter Meulenhoff,
Teemu Murtola, Szilard Pall, Sander Pronk, Roland Schulz,
Michael Shirts, Alfons Sijbers, Peter Tieleman,
Berk Hess, David van der Spoel, and Erik Lindahl.
Copyright (c) 1991-2000, University of Groningen, The Netherlands.
Copyright (c) 2001-2010, The GROMACS development team at
Uppsala University & The Royal Institute of Technology, Sweden.
check out http://www.gromacs.org for more information.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
:-) g_energy (-:
Option Filename Type Description
------------------------------------------------------------
-f et_be.edr Input Energy file
-f2 ener.edr Input, Opt. Energy file
-s topol.tpr Input, Opt. Run input file: tpr tpb tpa
-o et_be_en.xvg Output xvgr/xmgr file
-viol violaver.xvg Output, Opt. xvgr/xmgr file
-pairs pairs.xvg Output, Opt. xvgr/xmgr file
-ora orienta.xvg Output, Opt. xvgr/xmgr file
-ort orientt.xvg Output, Opt. xvgr/xmgr file
-oda orideva.xvg Output, Opt. xvgr/xmgr file
-odr oridevr.xvg Output, Opt. xvgr/xmgr file
-odt oridevt.xvg Output, Opt. xvgr/xmgr file
-oten oriten.xvg Output, Opt. xvgr/xmgr file
-corr enecorr.xvg Output, Opt. xvgr/xmgr file
-vis visco.xvg Output, Opt. xvgr/xmgr file
-ravg runavgdf.xvg Output, Opt. xvgr/xmgr file
-odh dhdl.xvg Output, Opt. xvgr/xmgr file
Option Type Value Description
------------------------------------------------------
-[no]h bool no Print help info and quit
-[no]version bool no Print version info and quit
-nice int 19 Set the nicelevel
-b time 0 First frame (ps) to read from trajectory
-e time 0 Last frame (ps) to read from trajectory
-[no]w bool no View output .xvg, .xpm, .eps and .pdb files
-xvg enum none xvg plot formatting: xmgrace, xmgr or none
-[no]fee bool no Do a free energy estimate
-fetemp real 300 Reference temperature for free energy calculation
-zero real 0 Subtract a zero-point energy
-[no]sum bool no Sum the energy terms selected rather than display
them all
-[no]dp bool no Print energies in high precision
-nbmin int 5 Minimum number of blocks for error estimate
-nbmax int 5 Maximum number of blocks for error estimate
-[no]mutot bool no Compute the total dipole moment from the
components
-skip int 0 Skip number of frames between data points
-[no]aver bool no Also print the exact average and rmsd stored in
the energy frames (only when 1 term is requested)
-nmol int 1 Number of molecules in your sample: the energies
are divided by this number
-[no]driftcorr bool no Useful only for calculations of fluctuation
properties. The drift in the observables will be
subtracted before computing the fluctuation
properties.
-[no]fluc bool no Calculate autocorrelation of energy fluctuations
rather than energy itself
-[no]orinst bool no Analyse instantaneous orientation data
-[no]ovec bool no Also plot the eigenvectors with -oten
-acflen int -1 Length of the ACF, default is half the number of
frames
-[no]normalize bool yes Normalize ACF
-P enum 0 Order of Legendre polynomial for ACF (0 indicates
none): 0, 1, 2 or 3
-fitfn enum none Fit function: none, exp, aexp, exp_exp, vac,
exp5, exp7, exp9 or erffit
-ncskip int 0 Skip N points in the output file of correlation
functions
-beginfit real 0 Time where to begin the exponential fit of the
correlation function
-endfit real -1 Time where to end the exponential fit of the
correlation function, -1 is until the end
Opened et_be.edr as single precision energy file
Select the terms you want from the following list by
selecting either (part of) the name or the number or a combination.
End your selection with an empty line or a zero.
-------------------------------------------------------------------
1 Bond 2 Angle 3 Ryckaert-Bell. 4 LJ-14
5 Coulomb-14 6 LJ-(SR) 7 LJ-(LR) 8 Coulomb-(SR)
9 Coulomb-(LR) 10 Potential 11 Kinetic-En. 12 Total-Energy
13 Temperature 14 Pressure 15 Vir-XX 16 Vir-XY
17 Vir-XZ 18 Vir-YX 19 Vir-YY 20 Vir-YZ
21 Vir-ZX 22 Vir-ZY 23 Vir-ZZ 24 Pres-XX
25 Pres-XY 26 Pres-XZ 27 Pres-YX 28 Pres-YY
29 Pres-YZ 30 Pres-ZX 31 Pres-ZY 32 Pres-ZZ
33 #Surf*SurfTen 34 Mu-X 35 Mu-Y 36 Mu-Z
37 T-System 38 Lamb-System
Last energy frame read 2500 time 250.000
gcq#344: "Come on boys, Let's push it hard" (P.J. Harvey)
:-) G R O M A C S (-:
Getting the Right Output Means no Artefacts in Calculating Stuff
:-) VERSION 4.5.5 (-:
Written by Emile Apol, Rossen Apostolov, Herman J.C. Berendsen,
Aldert van Buuren, Pär Bjelkmar, Rudi van Drunen, Anton Feenstra,
Gerrit Groenhof, Peter Kasson, Per Larsson, Pieter Meulenhoff,
Teemu Murtola, Szilard Pall, Sander Pronk, Roland Schulz,
Michael Shirts, Alfons Sijbers, Peter Tieleman,
Berk Hess, David van der Spoel, and Erik Lindahl.
Copyright (c) 1991-2000, University of Groningen, The Netherlands.
Copyright (c) 2001-2010, The GROMACS development team at
Uppsala University & The Royal Institute of Technology, Sweden.
check out http://www.gromacs.org for more information.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
:-) g_bond (-:
Option Filename Type Description
------------------------------------------------------------
-f et_be.trr Input Trajectory: xtc trr trj gro g96 pdb cpt
-n b.ndx Input Index file
-s et_be.tpr Input, Opt! Structure+mass(db): tpr tpb tpa gro g96 pdb
-o bond_be.xvg Output xvgr/xmgr file
-l bonds.log Output, Opt. Log file
-d distance.xvg Output, Opt. xvgr/xmgr file
Option Type Value Description
------------------------------------------------------
-[no]h bool no Print help info and quit
-[no]version bool no Print version info and quit
-nice int 19 Set the nicelevel
-b time 0 First frame (ps) to read from trajectory
-e time 0 Last frame (ps) to read from trajectory
-dt time 0 Only use frame when t MOD dt = first time (ps)
-[no]w bool no View output .xvg, .xpm, .eps and .pdb files
-xvg enum none xvg plot formatting: xmgrace, xmgr or none
-blen real -1 Bond length. By default length of first bond
-tol real 0.1 Half width of distribution as fraction of blen
-[no]aver bool yes Average bond length distributions
-[no]averdist bool yes Average distances (turns on -d)
-------------------------------------------------------
Program g_bond, VERSION 4.5.5
Source code file: /build/buildd/gromacs-4.5.5/src/gmxlib/futil.c, line: 491
File input/output error:
b.ndx
For more information and tips for troubleshooting, please check the GROMACS
website at http://www.gromacs.org/Documentation/Errors
-------------------------------------------------------
"Come on boys, Let's push it hard" (P.J. Harvey)
Option Filename Type Description
------------------------------------------------------------
-f nh.mdp Input grompp input file with MD parameters
-po mdout.mdp Output grompp input file with MD parameters
-c etane.gro Input Structure file: gro g96 pdb tpr etc.
-r conf.gro Input, Opt. Structure file: gro g96 pdb tpr etc.
-rb conf.gro Input, Opt. Structure file: gro g96 pdb tpr etc.
-n index.ndx Input, Opt. Index file
-p etane.top Input Topology file
-pp processed.top Output, Opt. Topology file
-o et_nh.tpr Output Run input file: tpr tpb tpa
-t traj.trr Input, Opt. Full precision trajectory: trr trj cpt
-e ener.edr Input, Opt. Energy file
Option Type Value Description
------------------------------------------------------
-[no]h bool no Print help info and quit
-[no]version bool no Print version info and quit
-nice int 0 Set the nicelevel
-[no]v bool no Be loud and noisy
-time real -1 Take frame at or first after this time.
-[no]rmvsbds bool yes Remove constant bonded interactions with virtual
sites
-maxwarn int 0 Number of allowed warnings during input
processing. Not for normal use and may generate
unstable systems
-[no]zero bool no Set parameters for bonded interactions without
defaults to zero instead of generating an error
-[no]renum bool yes Renumber atomtypes and minimize number of
atomtypes
Ignoring obsolete mdp entry 'title'
Ignoring obsolete mdp entry 'cpp'
Replacing old mdp entry 'unconstrained-start' by 'continuation'
Back Off! I just backed up mdout.mdp to ./#mdout.mdp.2#
NOTE 1 [file nh.mdp]:
nstcomm < nstcalcenergy defeats the purpose of nstcalcenergy, setting
nstcomm to nstcalcenergy
NOTE 2 [file nh.mdp]:
leapfrog does not yet support Nose-Hoover chains, nhchainlength reset to 1
Generated 332520 of the 332520 non-bonded parameter combinations
Generating 1-4 interactions: fudge = 0.5
Generated 332520 of the 332520 1-4 parameter combinations
Excluding 3 bonded neighbours molecule type 'et'
NOTE 3 [file etane.top, line 77]:
System has non-zero total charge: 0.034500
Total charge should normally be an integer. See
http://www.gromacs.org/Documentation/Floating_Point_Arithmetic
for discussion on how close it should be to an integer.
Number of degrees of freedom in T-Coupling group System is 21.00
NOTE 4 [file nh.mdp]:
You are using a plain Coulomb cut-off, which might produce artifacts.
You might want to consider using PME electrostatics.
There were 4 notes
gcq#344: "Come on boys, Let's push it hard" (P.J. Harvey)
:-) G R O M A C S (-:
Getting the Right Output Means no Artefacts in Calculating Stuff
:-) VERSION 4.5.5 (-:
Written by Emile Apol, Rossen Apostolov, Herman J.C. Berendsen,
Aldert van Buuren, Pär Bjelkmar, Rudi van Drunen, Anton Feenstra,
Gerrit Groenhof, Peter Kasson, Per Larsson, Pieter Meulenhoff,
Teemu Murtola, Szilard Pall, Sander Pronk, Roland Schulz,
Michael Shirts, Alfons Sijbers, Peter Tieleman,
Berk Hess, David van der Spoel, and Erik Lindahl.
Copyright (c) 1991-2000, University of Groningen, The Netherlands.
Copyright (c) 2001-2010, The GROMACS development team at
Uppsala University & The Royal Institute of Technology, Sweden.
check out http://www.gromacs.org for more information.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
:-) mdrun (-:
Option Filename Type Description
------------------------------------------------------------
-s et_nh.tpr Input Run input file: tpr tpb tpa
-o et_nh.trr Output Full precision trajectory: trr trj cpt
-x et_nh.xtc Output, Opt. Compressed trajectory (portable xdr format)
-cpi et_nh.cpt Input, Opt. Checkpoint file
-cpo et_nh.cpt Output, Opt. Checkpoint file
-c et_nh.gro Output Structure file: gro g96 pdb etc.
-e et_nh.edr Output Energy file
-g et_nh.log Output Log file
-dhdl et_nh.xvg Output, Opt. xvgr/xmgr file
-field et_nh.xvg Output, Opt. xvgr/xmgr file
-table et_nh.xvg Input, Opt. xvgr/xmgr file
-tablep et_nh.xvg Input, Opt. xvgr/xmgr file
-tableb et_nh.xvg Input, Opt. xvgr/xmgr file
-rerun et_nh.xtc Input, Opt. Trajectory: xtc trr trj gro g96 pdb cpt
-tpi et_nh.xvg Output, Opt. xvgr/xmgr file
-tpid et_nh.xvg Output, Opt. xvgr/xmgr file
-ei et_nh.edi Input, Opt. ED sampling input
-eo et_nh.edo Output, Opt. ED sampling output
-j et_nh.gct Input, Opt. General coupling stuff
-jo et_nh.gct Output, Opt. General coupling stuff
-ffout et_nh.xvg Output, Opt. xvgr/xmgr file
-devout et_nh.xvg Output, Opt. xvgr/xmgr file
-runav et_nh.xvg Output, Opt. xvgr/xmgr file
-px et_nh.xvg Output, Opt. xvgr/xmgr file
-pf et_nh.xvg Output, Opt. xvgr/xmgr file
-mtx et_nh.mtx Output, Opt. Hessian matrix
-dn et_nh.ndx Output, Opt. Index file
-multidir et_nh Input, Opt., Mult. Run directory
Option Type Value Description
------------------------------------------------------
-[no]h bool no Print help info and quit
-[no]version bool no Print version info and quit
-nice int 0 Set the nicelevel
-deffnm string et_nh Set the default filename for all file options
-xvg enum xmgrace xvg plot formatting: xmgrace, xmgr or none
-[no]pd bool no Use particle decompostion
-dd vector 0 0 0 Domain decomposition grid, 0 is optimize
-nt int 1 Number of threads to start (0 is guess)
-npme int -1 Number of separate nodes to be used for PME, -1
is guess
-ddorder enum interleave DD node order: interleave, pp_pme or cartesian
-[no]ddcheck bool yes Check for all bonded interactions with DD
-rdd real 0 The maximum distance for bonded interactions with
DD (nm), 0 is determine from initial coordinates
-rcon real 0 Maximum distance for P-LINCS (nm), 0 is estimate
-dlb enum auto Dynamic load balancing (with DD): auto, no or yes
-dds real 0.8 Minimum allowed dlb scaling of the DD cell size
-gcom int -1 Global communication frequency
-[no]v bool yes Be loud and noisy
-[no]compact bool yes Write a compact log file
-[no]seppot bool no Write separate V and dVdl terms for each
interaction type and node to the log file(s)
-pforce real -1 Print all forces larger than this (kJ/mol nm)
-[no]reprod bool no Try to avoid optimizations that affect binary
reproducibility
-cpt real 15 Checkpoint interval (minutes)
-[no]cpnum bool no Keep and number checkpoint files
-[no]append bool yes Append to previous output files when continuing
from checkpoint instead of adding the simulation
part number to all file names
-maxh real -1 Terminate after 0.99 times this time (hours)
-multi int 0 Do multiple simulations in parallel
-replex int 0 Attempt replica exchange every # steps
-reseed int -1 Seed for replica exchange, -1 is generate a seed
-[no]ionize bool no Do a simulation including the effect of an X-Ray
bombardment on your system
Getting Loaded...
Reading file et_nh.tpr, VERSION 4.5.5 (single precision)
Loaded with Money
starting mdrun 'first one'
250000 steps, 250.0 ps.
step 249900, remaining runtime: 0 s
Writing final coordinates.
step 250000, remaining runtime: 0 s
NODE (s) Real (s) (%)
Time: 3.000 3.344 89.7
(Mnbf/s) (MFlops) (ns/day) (hour/ns)
Performance: 0.000 497.527 7200.029 0.003
gcq#72: "Breaking the Law, Breaking the Law" (Judas Priest)
:-) G R O M A C S (-:
GROningen MAchine for Chemical Simulation
:-) VERSION 4.5.5 (-:
Written by Emile Apol, Rossen Apostolov, Herman J.C. Berendsen,
Aldert van Buuren, Pär Bjelkmar, Rudi van Drunen, Anton Feenstra,
Gerrit Groenhof, Peter Kasson, Per Larsson, Pieter Meulenhoff,
Teemu Murtola, Szilard Pall, Sander Pronk, Roland Schulz,
Michael Shirts, Alfons Sijbers, Peter Tieleman,
Berk Hess, David van der Spoel, and Erik Lindahl.
Copyright (c) 1991-2000, University of Groningen, The Netherlands.
Copyright (c) 2001-2010, The GROMACS development team at
Uppsala University & The Royal Institute of Technology, Sweden.
check out http://www.gromacs.org for more information.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
:-) trjconv (-:
Option Filename Type Description
------------------------------------------------------------
-f et_nh.trr Input Trajectory: xtc trr trj gro g96 pdb cpt
-o et_nh.pdb Output Trajectory: xtc trr trj gro g96 pdb
-s et_nh.tpr Input, Opt! Structure+mass(db): tpr tpb tpa gro g96 pdb
-n index.ndx Input, Opt. Index file
-fr frames.ndx Input, Opt. Index file
-sub cluster.ndx Input, Opt. Index file
-drop drop.xvg Input, Opt. xvgr/xmgr file
Option Type Value Description
------------------------------------------------------
-[no]h bool no Print help info and quit
-[no]version bool no Print version info and quit
-nice int 19 Set the nicelevel
-b time 0 First frame (ps) to read from trajectory
-e time 0 Last frame (ps) to read from trajectory
-tu enum ps Time unit: fs, ps, ns, us, ms or s
-[no]w bool no View output .xvg, .xpm, .eps and .pdb files
-xvg enum xmgrace xvg plot formatting: xmgrace, xmgr or none
-skip int 1 Only write every nr-th frame
-dt time 0 Only write frame when t MOD dt = first time (ps)
-[no]round bool no Round measurements to nearest picosecond
-dump time -1 Dump frame nearest specified time (ps)
-t0 time 0 Starting time (ps) (default: don't change)
-timestep time 0 Change time step between input frames (ps)
-pbc enum none PBC treatment (see help text for full
description): none, mol, res, atom, nojump,
cluster or whole
-ur enum rect Unit-cell representation: rect, tric or compact
-[no]center bool no Center atoms in box
-boxcenter enum tric Center for -pbc and -center: tric, rect or zero
-box vector 0 0 0 Size for new cubic box (default: read from input)
-clustercenter vector 0 0 0 Optional starting point for pbc cluster option
-trans vector 0 0 0 All coordinates will be translated by trans. This
can advantageously be combined with -pbc mol -ur
compact.
-shift vector 0 0 0 All coordinates will be shifted by framenr*shift
-fit enum none Fit molecule to ref structure in the structure
file: none, rot+trans, rotxy+transxy,
translation, transxy or progressive
-ndec int 3 Precision for .xtc and .gro writing in number of
decimal places
-[no]vel bool yes Read and write velocities if possible
-[no]force bool no Read and write forces if possible
-trunc time -1 Truncate input trajectory file after this time
(ps)
-exec string Execute command for every output frame with the
frame number as argument
-[no]app bool no Append output
-split time 0 Start writing new file when t MOD split = first
time (ps)
-[no]sep bool no Write each frame to a separate .gro, .g96 or .pdb
file
-nzero int 0 If the -sep flag is set, use these many digits
for the file numbers and prepend zeros as needed
-dropunder real 0 Drop all frames below this value
-dropover real 0 Drop all frames above this value
-[no]conect bool no Add conect records when writing .pdb files.
Useful for visualization of non-standard
molecules, e.g. coarse grained ones
Will write pdb: Protein data bank file
Reading file et_nh.tpr, VERSION 4.5.5 (single precision)
Reading file et_nh.tpr, VERSION 4.5.5 (single precision)
Group 0 ( System) has 8 elements
Group 1 ( Other) has 8 elements
Group 2 ( ETH) has 8 elements
Select a group: trn version: GMX_trn_file (single precision)
-> frame 250 time 250.000
gcq#72: "Breaking the Law, Breaking the Law" (Judas Priest)
:-) G R O M A C S (-:
GROningen MAchine for Chemical Simulation
:-) VERSION 4.5.5 (-:
Written by Emile Apol, Rossen Apostolov, Herman J.C. Berendsen,
Aldert van Buuren, Pär Bjelkmar, Rudi van Drunen, Anton Feenstra,
Gerrit Groenhof, Peter Kasson, Per Larsson, Pieter Meulenhoff,
Teemu Murtola, Szilard Pall, Sander Pronk, Roland Schulz,
Michael Shirts, Alfons Sijbers, Peter Tieleman,
Berk Hess, David van der Spoel, and Erik Lindahl.
Copyright (c) 1991-2000, University of Groningen, The Netherlands.
Copyright (c) 2001-2010, The GROMACS development team at
Uppsala University & The Royal Institute of Technology, Sweden.
check out http://www.gromacs.org for more information.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
:-) g_energy (-:
Option Filename Type Description
------------------------------------------------------------
-f et_nh.edr Input Energy file
-f2 ener.edr Input, Opt. Energy file
-s topol.tpr Input, Opt. Run input file: tpr tpb tpa
-o et_nh_en.xvg Output xvgr/xmgr file
-viol violaver.xvg Output, Opt. xvgr/xmgr file
-pairs pairs.xvg Output, Opt. xvgr/xmgr file
-ora orienta.xvg Output, Opt. xvgr/xmgr file
-ort orientt.xvg Output, Opt. xvgr/xmgr file
-oda orideva.xvg Output, Opt. xvgr/xmgr file
-odr oridevr.xvg Output, Opt. xvgr/xmgr file
-odt oridevt.xvg Output, Opt. xvgr/xmgr file
-oten oriten.xvg Output, Opt. xvgr/xmgr file
-corr enecorr.xvg Output, Opt. xvgr/xmgr file
-vis visco.xvg Output, Opt. xvgr/xmgr file
-ravg runavgdf.xvg Output, Opt. xvgr/xmgr file
-odh dhdl.xvg Output, Opt. xvgr/xmgr file
Option Type Value Description
------------------------------------------------------
-[no]h bool no Print help info and quit
-[no]version bool no Print version info and quit
-nice int 19 Set the nicelevel
-b time 0 First frame (ps) to read from trajectory
-e time 0 Last frame (ps) to read from trajectory
-[no]w bool no View output .xvg, .xpm, .eps and .pdb files
-xvg enum none xvg plot formatting: xmgrace, xmgr or none
-[no]fee bool no Do a free energy estimate
-fetemp real 300 Reference temperature for free energy calculation
-zero real 0 Subtract a zero-point energy
-[no]sum bool no Sum the energy terms selected rather than display
them all
-[no]dp bool no Print energies in high precision
-nbmin int 5 Minimum number of blocks for error estimate
-nbmax int 5 Maximum number of blocks for error estimate
-[no]mutot bool no Compute the total dipole moment from the
components
-skip int 0 Skip number of frames between data points
-[no]aver bool no Also print the exact average and rmsd stored in
the energy frames (only when 1 term is requested)
-nmol int 1 Number of molecules in your sample: the energies
are divided by this number
-[no]driftcorr bool no Useful only for calculations of fluctuation
properties. The drift in the observables will be
subtracted before computing the fluctuation
properties.
-[no]fluc bool no Calculate autocorrelation of energy fluctuations
rather than energy itself
-[no]orinst bool no Analyse instantaneous orientation data
-[no]ovec bool no Also plot the eigenvectors with -oten
-acflen int -1 Length of the ACF, default is half the number of
frames
-[no]normalize bool yes Normalize ACF
-P enum 0 Order of Legendre polynomial for ACF (0 indicates
none): 0, 1, 2 or 3
-fitfn enum none Fit function: none, exp, aexp, exp_exp, vac,
exp5, exp7, exp9 or erffit
-ncskip int 0 Skip N points in the output file of correlation
functions
-beginfit real 0 Time where to begin the exponential fit of the
correlation function
-endfit real -1 Time where to end the exponential fit of the
correlation function, -1 is until the end
Opened et_nh.edr as single precision energy file
Select the terms you want from the following list by
selecting either (part of) the name or the number or a combination.
End your selection with an empty line or a zero.
-------------------------------------------------------------------
1 Bond 2 Angle 3 Ryckaert-Bell. 4 LJ-14
5 Coulomb-14 6 LJ-(SR) 7 LJ-(LR) 8 Coulomb-(SR)
9 Coulomb-(LR) 10 Potential 11 Kinetic-En. 12 Total-Energy
13 Conserved-En. 14 Temperature 15 Pressure 16 Vir-XX
17 Vir-XY 18 Vir-XZ 19 Vir-YX 20 Vir-YY
21 Vir-YZ 22 Vir-ZX 23 Vir-ZY 24 Vir-ZZ
25 Pres-XX 26 Pres-XY 27 Pres-XZ 28 Pres-YX
29 Pres-YY 30 Pres-YZ 31 Pres-ZX 32 Pres-ZY
33 Pres-ZZ 34 #Surf*SurfTen 35 Mu-X 36 Mu-Y
37 Mu-Z 38 T-System
Last energy frame read 2500 time 250.000
gcq#72: "Breaking the Law, Breaking the Law" (Judas Priest)
:-) G R O M A C S (-:
GROningen MAchine for Chemical Simulation
:-) VERSION 4.5.5 (-:
Written by Emile Apol, Rossen Apostolov, Herman J.C. Berendsen,
Aldert van Buuren, Pär Bjelkmar, Rudi van Drunen, Anton Feenstra,
Gerrit Groenhof, Peter Kasson, Per Larsson, Pieter Meulenhoff,
Teemu Murtola, Szilard Pall, Sander Pronk, Roland Schulz,
Michael Shirts, Alfons Sijbers, Peter Tieleman,
Berk Hess, David van der Spoel, and Erik Lindahl.
Copyright (c) 1991-2000, University of Groningen, The Netherlands.
Copyright (c) 2001-2010, The GROMACS development team at
Uppsala University & The Royal Institute of Technology, Sweden.
check out http://www.gromacs.org for more information.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
:-) g_bond (-:
Option Filename Type Description
------------------------------------------------------------
-f et_nh.trr Input Trajectory: xtc trr trj gro g96 pdb cpt
-n b.ndx Input Index file
-s et_nh.tpr Input, Opt! Structure+mass(db): tpr tpb tpa gro g96 pdb
-o bond_nh.xvg Output xvgr/xmgr file
-l bonds.log Output, Opt. Log file
-d distance.xvg Output, Opt. xvgr/xmgr file
Option Type Value Description
------------------------------------------------------
-[no]h bool no Print help info and quit
-[no]version bool no Print version info and quit
-nice int 19 Set the nicelevel
-b time 0 First frame (ps) to read from trajectory
-e time 0 Last frame (ps) to read from trajectory
-dt time 0 Only use frame when t MOD dt = first time (ps)
-[no]w bool no View output .xvg, .xpm, .eps and .pdb files
-xvg enum none xvg plot formatting: xmgrace, xmgr or none
-blen real -1 Bond length. By default length of first bond
-tol real 0.1 Half width of distribution as fraction of blen
-[no]aver bool yes Average bond length distributions
-[no]averdist bool yes Average distances (turns on -d)
-------------------------------------------------------
Program g_bond, VERSION 4.5.5
Source code file: /build/buildd/gromacs-4.5.5/src/gmxlib/futil.c, line: 491
File input/output error:
b.ndx
For more information and tips for troubleshooting, please check the GROMACS
website at http://www.gromacs.org/Documentation/Errors
-------------------------------------------------------
"Breaking the Law, Breaking the Law" (Judas Priest)
Option Filename Type Description
------------------------------------------------------------
-f sd.mdp Input grompp input file with MD parameters
-po mdout.mdp Output grompp input file with MD parameters
-c etane.gro Input Structure file: gro g96 pdb tpr etc.
-r conf.gro Input, Opt. Structure file: gro g96 pdb tpr etc.
-rb conf.gro Input, Opt. Structure file: gro g96 pdb tpr etc.
-n index.ndx Input, Opt. Index file
-p etane.top Input Topology file
-pp processed.top Output, Opt. Topology file
-o et_sd.tpr Output Run input file: tpr tpb tpa
-t traj.trr Input, Opt. Full precision trajectory: trr trj cpt
-e ener.edr Input, Opt. Energy file
Option Type Value Description
------------------------------------------------------
-[no]h bool no Print help info and quit
-[no]version bool no Print version info and quit
-nice int 0 Set the nicelevel
-[no]v bool no Be loud and noisy
-time real -1 Take frame at or first after this time.
-[no]rmvsbds bool yes Remove constant bonded interactions with virtual
sites
-maxwarn int 0 Number of allowed warnings during input
processing. Not for normal use and may generate
unstable systems
-[no]zero bool no Set parameters for bonded interactions without
defaults to zero instead of generating an error
-[no]renum bool yes Renumber atomtypes and minimize number of
atomtypes
Ignoring obsolete mdp entry 'title'
Ignoring obsolete mdp entry 'cpp'
Replacing old mdp entry 'unconstrained-start' by 'continuation'
Back Off! I just backed up mdout.mdp to ./#mdout.mdp.3#
NOTE 1 [file sd.mdp]:
nstcomm < nstcalcenergy defeats the purpose of nstcalcenergy, setting
nstcomm to nstcalcenergy
Setting the LD random seed to 4665
Generated 332520 of the 332520 non-bonded parameter combinations
Generating 1-4 interactions: fudge = 0.5
Generated 332520 of the 332520 1-4 parameter combinations
Excluding 3 bonded neighbours molecule type 'et'
NOTE 2 [file etane.top, line 77]:
System has non-zero total charge: 0.034500
Total charge should normally be an integer. See
http://www.gromacs.org/Documentation/Floating_Point_Arithmetic
for discussion on how close it should be to an integer.
Number of degrees of freedom in T-Coupling group System is 21.00
NOTE 3 [file sd.mdp]:
You are using a plain Coulomb cut-off, which might produce artifacts.
You might want to consider using PME electrostatics.
There were 3 notes
gcq#72: "Breaking the Law, Breaking the Law" (Judas Priest)
:-) G R O M A C S (-:
GROningen MAchine for Chemical Simulation
:-) VERSION 4.5.5 (-:
Written by Emile Apol, Rossen Apostolov, Herman J.C. Berendsen,
Aldert van Buuren, Pär Bjelkmar, Rudi van Drunen, Anton Feenstra,
Gerrit Groenhof, Peter Kasson, Per Larsson, Pieter Meulenhoff,
Teemu Murtola, Szilard Pall, Sander Pronk, Roland Schulz,
Michael Shirts, Alfons Sijbers, Peter Tieleman,
Berk Hess, David van der Spoel, and Erik Lindahl.
Copyright (c) 1991-2000, University of Groningen, The Netherlands.
Copyright (c) 2001-2010, The GROMACS development team at
Uppsala University & The Royal Institute of Technology, Sweden.
check out http://www.gromacs.org for more information.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
:-) mdrun (-:
Option Filename Type Description
------------------------------------------------------------
-s et_sd.tpr Input Run input file: tpr tpb tpa
-o et_sd.trr Output Full precision trajectory: trr trj cpt
-x et_sd.xtc Output, Opt. Compressed trajectory (portable xdr format)
-cpi et_sd.cpt Input, Opt. Checkpoint file
-cpo et_sd.cpt Output, Opt. Checkpoint file
-c et_sd.gro Output Structure file: gro g96 pdb etc.
-e et_sd.edr Output Energy file
-g et_sd.log Output Log file
-dhdl et_sd.xvg Output, Opt. xvgr/xmgr file
-field et_sd.xvg Output, Opt. xvgr/xmgr file
-table et_sd.xvg Input, Opt. xvgr/xmgr file
-tablep et_sd.xvg Input, Opt. xvgr/xmgr file
-tableb et_sd.xvg Input, Opt. xvgr/xmgr file
-rerun et_sd.xtc Input, Opt. Trajectory: xtc trr trj gro g96 pdb cpt
-tpi et_sd.xvg Output, Opt. xvgr/xmgr file
-tpid et_sd.xvg Output, Opt. xvgr/xmgr file
-ei et_sd.edi Input, Opt. ED sampling input
-eo et_sd.edo Output, Opt. ED sampling output
-j et_sd.gct Input, Opt. General coupling stuff
-jo et_sd.gct Output, Opt. General coupling stuff
-ffout et_sd.xvg Output, Opt. xvgr/xmgr file
-devout et_sd.xvg Output, Opt. xvgr/xmgr file
-runav et_sd.xvg Output, Opt. xvgr/xmgr file
-px et_sd.xvg Output, Opt. xvgr/xmgr file
-pf et_sd.xvg Output, Opt. xvgr/xmgr file
-mtx et_sd.mtx Output, Opt. Hessian matrix
-dn et_sd.ndx Output, Opt. Index file
-multidir et_sd Input, Opt., Mult. Run directory
Option Type Value Description
------------------------------------------------------
-[no]h bool no Print help info and quit
-[no]version bool no Print version info and quit
-nice int 0 Set the nicelevel
-deffnm string et_sd Set the default filename for all file options
-xvg enum xmgrace xvg plot formatting: xmgrace, xmgr or none
-[no]pd bool no Use particle decompostion
-dd vector 0 0 0 Domain decomposition grid, 0 is optimize
-nt int 1 Number of threads to start (0 is guess)
-npme int -1 Number of separate nodes to be used for PME, -1
is guess
-ddorder enum interleave DD node order: interleave, pp_pme or cartesian
-[no]ddcheck bool yes Check for all bonded interactions with DD
-rdd real 0 The maximum distance for bonded interactions with
DD (nm), 0 is determine from initial coordinates
-rcon real 0 Maximum distance for P-LINCS (nm), 0 is estimate
-dlb enum auto Dynamic load balancing (with DD): auto, no or yes
-dds real 0.8 Minimum allowed dlb scaling of the DD cell size
-gcom int -1 Global communication frequency
-[no]v bool yes Be loud and noisy
-[no]compact bool yes Write a compact log file
-[no]seppot bool no Write separate V and dVdl terms for each
interaction type and node to the log file(s)
-pforce real -1 Print all forces larger than this (kJ/mol nm)
-[no]reprod bool no Try to avoid optimizations that affect binary
reproducibility
-cpt real 15 Checkpoint interval (minutes)
-[no]cpnum bool no Keep and number checkpoint files
-[no]append bool yes Append to previous output files when continuing
from checkpoint instead of adding the simulation
part number to all file names
-maxh real -1 Terminate after 0.99 times this time (hours)
-multi int 0 Do multiple simulations in parallel
-replex int 0 Attempt replica exchange every # steps
-reseed int -1 Seed for replica exchange, -1 is generate a seed
-[no]ionize bool no Do a simulation including the effect of an X-Ray
bombardment on your system
Getting Loaded...
Reading file et_sd.tpr, VERSION 4.5.5 (single precision)
Loaded with Money
starting mdrun 'first one'
250000 steps, 250.0 ps.
step 249900, remaining runtime: 0 s
Writing final coordinates.
step 250000, remaining runtime: 0 s
NODE (s) Real (s) (%)
Time: 3.580 4.151 86.2
(Mnbf/s) (MFlops) (ns/day) (hour/ns)
Performance: 0.000 435.583 6033.544 0.004
gcq#166: "It Wouldn't Hurt to Wipe Once In a While" (Beavis and Butthead)
:-) G R O M A C S (-:
Gnomes, ROck Monsters And Chili Sauce
:-) VERSION 4.5.5 (-:
Written by Emile Apol, Rossen Apostolov, Herman J.C. Berendsen,
Aldert van Buuren, Pär Bjelkmar, Rudi van Drunen, Anton Feenstra,
Gerrit Groenhof, Peter Kasson, Per Larsson, Pieter Meulenhoff,
Teemu Murtola, Szilard Pall, Sander Pronk, Roland Schulz,
Michael Shirts, Alfons Sijbers, Peter Tieleman,
Berk Hess, David van der Spoel, and Erik Lindahl.
Copyright (c) 1991-2000, University of Groningen, The Netherlands.
Copyright (c) 2001-2010, The GROMACS development team at
Uppsala University & The Royal Institute of Technology, Sweden.
check out http://www.gromacs.org for more information.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
:-) trjconv (-:
Option Filename Type Description
------------------------------------------------------------
-f et_sd.trr Input Trajectory: xtc trr trj gro g96 pdb cpt
-o et_sd.pdb Output Trajectory: xtc trr trj gro g96 pdb
-s et_sd.tpr Input, Opt! Structure+mass(db): tpr tpb tpa gro g96 pdb
-n index.ndx Input, Opt. Index file
-fr frames.ndx Input, Opt. Index file
-sub cluster.ndx Input, Opt. Index file
-drop drop.xvg Input, Opt. xvgr/xmgr file
Option Type Value Description
------------------------------------------------------
-[no]h bool no Print help info and quit
-[no]version bool no Print version info and quit
-nice int 19 Set the nicelevel
-b time 0 First frame (ps) to read from trajectory
-e time 0 Last frame (ps) to read from trajectory
-tu enum ps Time unit: fs, ps, ns, us, ms or s
-[no]w bool no View output .xvg, .xpm, .eps and .pdb files
-xvg enum xmgrace xvg plot formatting: xmgrace, xmgr or none
-skip int 1 Only write every nr-th frame
-dt time 0 Only write frame when t MOD dt = first time (ps)
-[no]round bool no Round measurements to nearest picosecond
-dump time -1 Dump frame nearest specified time (ps)
-t0 time 0 Starting time (ps) (default: don't change)
-timestep time 0 Change time step between input frames (ps)
-pbc enum none PBC treatment (see help text for full
description): none, mol, res, atom, nojump,
cluster or whole
-ur enum rect Unit-cell representation: rect, tric or compact
-[no]center bool no Center atoms in box
-boxcenter enum tric Center for -pbc and -center: tric, rect or zero
-box vector 0 0 0 Size for new cubic box (default: read from input)
-clustercenter vector 0 0 0 Optional starting point for pbc cluster option
-trans vector 0 0 0 All coordinates will be translated by trans. This
can advantageously be combined with -pbc mol -ur
compact.
-shift vector 0 0 0 All coordinates will be shifted by framenr*shift
-fit enum none Fit molecule to ref structure in the structure
file: none, rot+trans, rotxy+transxy,
translation, transxy or progressive
-ndec int 3 Precision for .xtc and .gro writing in number of
decimal places
-[no]vel bool yes Read and write velocities if possible
-[no]force bool no Read and write forces if possible
-trunc time -1 Truncate input trajectory file after this time
(ps)
-exec string Execute command for every output frame with the
frame number as argument
-[no]app bool no Append output
-split time 0 Start writing new file when t MOD split = first
time (ps)
-[no]sep bool no Write each frame to a separate .gro, .g96 or .pdb
file
-nzero int 0 If the -sep flag is set, use these many digits
for the file numbers and prepend zeros as needed
-dropunder real 0 Drop all frames below this value
-dropover real 0 Drop all frames above this value
-[no]conect bool no Add conect records when writing .pdb files.
Useful for visualization of non-standard
molecules, e.g. coarse grained ones
Will write pdb: Protein data bank file
Reading file et_sd.tpr, VERSION 4.5.5 (single precision)
Reading file et_sd.tpr, VERSION 4.5.5 (single precision)
Group 0 ( System) has 8 elements
Group 1 ( Other) has 8 elements
Group 2 ( ETH) has 8 elements
Select a group: trn version: GMX_trn_file (single precision)
-> frame 250 time 250.000
gcq#166: "It Wouldn't Hurt to Wipe Once In a While" (Beavis and Butthead)
:-) G R O M A C S (-:
Gnomes, ROck Monsters And Chili Sauce
:-) VERSION 4.5.5 (-:
Written by Emile Apol, Rossen Apostolov, Herman J.C. Berendsen,
Aldert van Buuren, Pär Bjelkmar, Rudi van Drunen, Anton Feenstra,
Gerrit Groenhof, Peter Kasson, Per Larsson, Pieter Meulenhoff,
Teemu Murtola, Szilard Pall, Sander Pronk, Roland Schulz,
Michael Shirts, Alfons Sijbers, Peter Tieleman,
Berk Hess, David van der Spoel, and Erik Lindahl.
Copyright (c) 1991-2000, University of Groningen, The Netherlands.
Copyright (c) 2001-2010, The GROMACS development team at
Uppsala University & The Royal Institute of Technology, Sweden.
check out http://www.gromacs.org for more information.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
:-) g_energy (-:
Option Filename Type Description
------------------------------------------------------------
-f et_sd.edr Input Energy file
-f2 ener.edr Input, Opt. Energy file
-s topol.tpr Input, Opt. Run input file: tpr tpb tpa
-o et_sd_en.xvg Output xvgr/xmgr file
-viol violaver.xvg Output, Opt. xvgr/xmgr file
-pairs pairs.xvg Output, Opt. xvgr/xmgr file
-ora orienta.xvg Output, Opt. xvgr/xmgr file
-ort orientt.xvg Output, Opt. xvgr/xmgr file
-oda orideva.xvg Output, Opt. xvgr/xmgr file
-odr oridevr.xvg Output, Opt. xvgr/xmgr file
-odt oridevt.xvg Output, Opt. xvgr/xmgr file
-oten oriten.xvg Output, Opt. xvgr/xmgr file
-corr enecorr.xvg Output, Opt. xvgr/xmgr file
-vis visco.xvg Output, Opt. xvgr/xmgr file
-ravg runavgdf.xvg Output, Opt. xvgr/xmgr file
-odh dhdl.xvg Output, Opt. xvgr/xmgr file
Option Type Value Description
------------------------------------------------------
-[no]h bool no Print help info and quit
-[no]version bool no Print version info and quit
-nice int 19 Set the nicelevel
-b time 0 First frame (ps) to read from trajectory
-e time 0 Last frame (ps) to read from trajectory
-[no]w bool no View output .xvg, .xpm, .eps and .pdb files
-xvg enum none xvg plot formatting: xmgrace, xmgr or none
-[no]fee bool no Do a free energy estimate
-fetemp real 300 Reference temperature for free energy calculation
-zero real 0 Subtract a zero-point energy
-[no]sum bool no Sum the energy terms selected rather than display
them all
-[no]dp bool no Print energies in high precision
-nbmin int 5 Minimum number of blocks for error estimate
-nbmax int 5 Maximum number of blocks for error estimate
-[no]mutot bool no Compute the total dipole moment from the
components
-skip int 0 Skip number of frames between data points
-[no]aver bool no Also print the exact average and rmsd stored in
the energy frames (only when 1 term is requested)
-nmol int 1 Number of molecules in your sample: the energies
are divided by this number
-[no]driftcorr bool no Useful only for calculations of fluctuation
properties. The drift in the observables will be
subtracted before computing the fluctuation
properties.
-[no]fluc bool no Calculate autocorrelation of energy fluctuations
rather than energy itself
-[no]orinst bool no Analyse instantaneous orientation data
-[no]ovec bool no Also plot the eigenvectors with -oten
-acflen int -1 Length of the ACF, default is half the number of
frames
-[no]normalize bool yes Normalize ACF
-P enum 0 Order of Legendre polynomial for ACF (0 indicates
none): 0, 1, 2 or 3
-fitfn enum none Fit function: none, exp, aexp, exp_exp, vac,
exp5, exp7, exp9 or erffit
-ncskip int 0 Skip N points in the output file of correlation
functions
-beginfit real 0 Time where to begin the exponential fit of the
correlation function
-endfit real -1 Time where to end the exponential fit of the
correlation function, -1 is until the end
Opened et_sd.edr as single precision energy file
Select the terms you want from the following list by
selecting either (part of) the name or the number or a combination.
End your selection with an empty line or a zero.
-------------------------------------------------------------------
1 Bond 2 Angle 3 Ryckaert-Bell. 4 LJ-14
5 Coulomb-14 6 LJ-(SR) 7 LJ-(LR) 8 Coulomb-(SR)
9 Coulomb-(LR) 10 Potential 11 Kinetic-En. 12 Total-Energy
13 Temperature 14 Pressure 15 Vir-XX 16 Vir-XY
17 Vir-XZ 18 Vir-YX 19 Vir-YY 20 Vir-YZ
21 Vir-ZX 22 Vir-ZY 23 Vir-ZZ 24 Pres-XX
25 Pres-XY 26 Pres-XZ 27 Pres-YX 28 Pres-YY
29 Pres-YZ 30 Pres-ZX 31 Pres-ZY 32 Pres-ZZ
33 #Surf*SurfTen 34 Mu-X 35 Mu-Y 36 Mu-Z
37 T-System
Last energy frame read 2500 time 250.000
gcq#281: "I'll Match Your DNA" (Red Hot Chili Peppers)
:-) G R O M A C S (-:
God Rules Over Mankind, Animals, Cosmos and Such
:-) VERSION 4.5.5 (-:
Written by Emile Apol, Rossen Apostolov, Herman J.C. Berendsen,
Aldert van Buuren, Pär Bjelkmar, Rudi van Drunen, Anton Feenstra,
Gerrit Groenhof, Peter Kasson, Per Larsson, Pieter Meulenhoff,
Teemu Murtola, Szilard Pall, Sander Pronk, Roland Schulz,
Michael Shirts, Alfons Sijbers, Peter Tieleman,
Berk Hess, David van der Spoel, and Erik Lindahl.
Copyright (c) 1991-2000, University of Groningen, The Netherlands.
Copyright (c) 2001-2010, The GROMACS development team at
Uppsala University & The Royal Institute of Technology, Sweden.
check out http://www.gromacs.org for more information.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
:-) g_bond (-:
Option Filename Type Description
------------------------------------------------------------
-f et_sd.trr Input Trajectory: xtc trr trj gro g96 pdb cpt
-n b.ndx Input Index file
-s et_sd.tpr Input, Opt! Structure+mass(db): tpr tpb tpa gro g96 pdb
-o bond_sd.xvg Output xvgr/xmgr file
-l bonds.log Output, Opt. Log file
-d distance.xvg Output, Opt. xvgr/xmgr file
Option Type Value Description
------------------------------------------------------
-[no]h bool no Print help info and quit
-[no]version bool no Print version info and quit
-nice int 19 Set the nicelevel
-b time 0 First frame (ps) to read from trajectory
-e time 0 Last frame (ps) to read from trajectory
-dt time 0 Only use frame when t MOD dt = first time (ps)
-[no]w bool no View output .xvg, .xpm, .eps and .pdb files
-xvg enum none xvg plot formatting: xmgrace, xmgr or none
-blen real -1 Bond length. By default length of first bond
-tol real 0.1 Half width of distribution as fraction of blen
-[no]aver bool yes Average bond length distributions
-[no]averdist bool yes Average distances (turns on -d)
-------------------------------------------------------
Program g_bond, VERSION 4.5.5
Source code file: /build/buildd/gromacs-4.5.5/src/gmxlib/futil.c, line: 491
File input/output error:
b.ndx
For more information and tips for troubleshooting, please check the GROMACS
website at http://www.gromacs.org/Documentation/Errors
-------------------------------------------------------
"I'll Match Your DNA" (Red Hot Chili Peppers)
Option Filename Type Description
------------------------------------------------------------
-f vr.mdp Input grompp input file with MD parameters
-po mdout.mdp Output grompp input file with MD parameters
-c etane.gro Input Structure file: gro g96 pdb tpr etc.
-r conf.gro Input, Opt. Structure file: gro g96 pdb tpr etc.
-rb conf.gro Input, Opt. Structure file: gro g96 pdb tpr etc.
-n index.ndx Input, Opt. Index file
-p etane.top Input Topology file
-pp processed.top Output, Opt. Topology file
-o et_vr.tpr Output Run input file: tpr tpb tpa
-t traj.trr Input, Opt. Full precision trajectory: trr trj cpt
-e ener.edr Input, Opt. Energy file
Option Type Value Description
------------------------------------------------------
-[no]h bool no Print help info and quit
-[no]version bool no Print version info and quit
-nice int 0 Set the nicelevel
-[no]v bool no Be loud and noisy
-time real -1 Take frame at or first after this time.
-[no]rmvsbds bool yes Remove constant bonded interactions with virtual
sites
-maxwarn int 0 Number of allowed warnings during input
processing. Not for normal use and may generate
unstable systems
-[no]zero bool no Set parameters for bonded interactions without
defaults to zero instead of generating an error
-[no]renum bool yes Renumber atomtypes and minimize number of
atomtypes
Ignoring obsolete mdp entry 'title'
Ignoring obsolete mdp entry 'cpp'
Replacing old mdp entry 'unconstrained-start' by 'continuation'
Back Off! I just backed up mdout.mdp to ./#mdout.mdp.4#
NOTE 1 [file vr.mdp]:
nstcomm < nstcalcenergy defeats the purpose of nstcalcenergy, setting
nstcomm to nstcalcenergy
Generated 332520 of the 332520 non-bonded parameter combinations
Generating 1-4 interactions: fudge = 0.5
Generated 332520 of the 332520 1-4 parameter combinations
Excluding 3 bonded neighbours molecule type 'et'
NOTE 2 [file etane.top, line 77]:
System has non-zero total charge: 0.034500
Total charge should normally be an integer. See
http://www.gromacs.org/Documentation/Floating_Point_Arithmetic
for discussion on how close it should be to an integer.
Number of degrees of freedom in T-Coupling group System is 21.00
NOTE 3 [file vr.mdp]:
You are using a plain Coulomb cut-off, which might produce artifacts.
You might want to consider using PME electrostatics.
There were 3 notes
gcq#281: "I'll Match Your DNA" (Red Hot Chili Peppers)
:-) G R O M A C S (-:
God Rules Over Mankind, Animals, Cosmos and Such
:-) VERSION 4.5.5 (-:
Written by Emile Apol, Rossen Apostolov, Herman J.C. Berendsen,
Aldert van Buuren, Pär Bjelkmar, Rudi van Drunen, Anton Feenstra,
Gerrit Groenhof, Peter Kasson, Per Larsson, Pieter Meulenhoff,
Teemu Murtola, Szilard Pall, Sander Pronk, Roland Schulz,
Michael Shirts, Alfons Sijbers, Peter Tieleman,
Berk Hess, David van der Spoel, and Erik Lindahl.
Copyright (c) 1991-2000, University of Groningen, The Netherlands.
Copyright (c) 2001-2010, The GROMACS development team at
Uppsala University & The Royal Institute of Technology, Sweden.
check out http://www.gromacs.org for more information.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
:-) mdrun (-:
Option Filename Type Description
------------------------------------------------------------
-s et_vr.tpr Input Run input file: tpr tpb tpa
-o et_vr.trr Output Full precision trajectory: trr trj cpt
-x et_vr.xtc Output, Opt. Compressed trajectory (portable xdr format)
-cpi et_vr.cpt Input, Opt. Checkpoint file
-cpo et_vr.cpt Output, Opt. Checkpoint file
-c et_vr.gro Output Structure file: gro g96 pdb etc.
-e et_vr.edr Output Energy file
-g et_vr.log Output Log file
-dhdl et_vr.xvg Output, Opt. xvgr/xmgr file
-field et_vr.xvg Output, Opt. xvgr/xmgr file
-table et_vr.xvg Input, Opt. xvgr/xmgr file
-tablep et_vr.xvg Input, Opt. xvgr/xmgr file
-tableb et_vr.xvg Input, Opt. xvgr/xmgr file
-rerun et_vr.xtc Input, Opt. Trajectory: xtc trr trj gro g96 pdb cpt
-tpi et_vr.xvg Output, Opt. xvgr/xmgr file
-tpid et_vr.xvg Output, Opt. xvgr/xmgr file
-ei et_vr.edi Input, Opt. ED sampling input
-eo et_vr.edo Output, Opt. ED sampling output
-j et_vr.gct Input, Opt. General coupling stuff
-jo et_vr.gct Output, Opt. General coupling stuff
-ffout et_vr.xvg Output, Opt. xvgr/xmgr file
-devout et_vr.xvg Output, Opt. xvgr/xmgr file
-runav et_vr.xvg Output, Opt. xvgr/xmgr file
-px et_vr.xvg Output, Opt. xvgr/xmgr file
-pf et_vr.xvg Output, Opt. xvgr/xmgr file
-mtx et_vr.mtx Output, Opt. Hessian matrix
-dn et_vr.ndx Output, Opt. Index file
-multidir et_vr Input, Opt., Mult. Run directory
Option Type Value Description
------------------------------------------------------
-[no]h bool no Print help info and quit
-[no]version bool no Print version info and quit
-nice int 0 Set the nicelevel
-deffnm string et_vr Set the default filename for all file options
-xvg enum xmgrace xvg plot formatting: xmgrace, xmgr or none
-[no]pd bool no Use particle decompostion
-dd vector 0 0 0 Domain decomposition grid, 0 is optimize
-nt int 1 Number of threads to start (0 is guess)
-npme int -1 Number of separate nodes to be used for PME, -1
is guess
-ddorder enum interleave DD node order: interleave, pp_pme or cartesian
-[no]ddcheck bool yes Check for all bonded interactions with DD
-rdd real 0 The maximum distance for bonded interactions with
DD (nm), 0 is determine from initial coordinates
-rcon real 0 Maximum distance for P-LINCS (nm), 0 is estimate
-dlb enum auto Dynamic load balancing (with DD): auto, no or yes
-dds real 0.8 Minimum allowed dlb scaling of the DD cell size
-gcom int -1 Global communication frequency
-[no]v bool yes Be loud and noisy
-[no]compact bool yes Write a compact log file
-[no]seppot bool no Write separate V and dVdl terms for each
interaction type and node to the log file(s)
-pforce real -1 Print all forces larger than this (kJ/mol nm)
-[no]reprod bool no Try to avoid optimizations that affect binary
reproducibility
-cpt real 15 Checkpoint interval (minutes)
-[no]cpnum bool no Keep and number checkpoint files
-[no]append bool yes Append to previous output files when continuing
from checkpoint instead of adding the simulation
part number to all file names
-maxh real -1 Terminate after 0.99 times this time (hours)
-multi int 0 Do multiple simulations in parallel
-replex int 0 Attempt replica exchange every # steps
-reseed int -1 Seed for replica exchange, -1 is generate a seed
-[no]ionize bool no Do a simulation including the effect of an X-Ray
bombardment on your system
Getting Loaded...
Reading file et_vr.tpr, VERSION 4.5.5 (single precision)
Loaded with Money
starting mdrun 'first one'
250000 steps, 250.0 ps.
step 249900, remaining runtime: 0 s
Writing final coordinates.
step 250000, remaining runtime: 0 s
NODE (s) Real (s) (%)
Time: 3.020 3.396 88.9
(Mnbf/s) (MFlops) (ns/day) (hour/ns)
Performance: 0.000 493.744 7152.347 0.003
gcq#260: "I Quit My Job Blowing Leaves" (Beck)
:-) G R O M A C S (-:
Giving Russians Opium May Alter Current Situation
:-) VERSION 4.5.5 (-:
Written by Emile Apol, Rossen Apostolov, Herman J.C. Berendsen,
Aldert van Buuren, Pär Bjelkmar, Rudi van Drunen, Anton Feenstra,
Gerrit Groenhof, Peter Kasson, Per Larsson, Pieter Meulenhoff,
Teemu Murtola, Szilard Pall, Sander Pronk, Roland Schulz,
Michael Shirts, Alfons Sijbers, Peter Tieleman,
Berk Hess, David van der Spoel, and Erik Lindahl.
Copyright (c) 1991-2000, University of Groningen, The Netherlands.
Copyright (c) 2001-2010, The GROMACS development team at
Uppsala University & The Royal Institute of Technology, Sweden.
check out http://www.gromacs.org for more information.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
:-) trjconv (-:
Option Filename Type Description
------------------------------------------------------------
-f et_vr.trr Input Trajectory: xtc trr trj gro g96 pdb cpt
-o et_vr.pdb Output Trajectory: xtc trr trj gro g96 pdb
-s et_vr.tpr Input, Opt! Structure+mass(db): tpr tpb tpa gro g96 pdb
-n index.ndx Input, Opt. Index file
-fr frames.ndx Input, Opt. Index file
-sub cluster.ndx Input, Opt. Index file
-drop drop.xvg Input, Opt. xvgr/xmgr file
Option Type Value Description
------------------------------------------------------
-[no]h bool no Print help info and quit
-[no]version bool no Print version info and quit
-nice int 19 Set the nicelevel
-b time 0 First frame (ps) to read from trajectory
-e time 0 Last frame (ps) to read from trajectory
-tu enum ps Time unit: fs, ps, ns, us, ms or s
-[no]w bool no View output .xvg, .xpm, .eps and .pdb files
-xvg enum xmgrace xvg plot formatting: xmgrace, xmgr or none
-skip int 1 Only write every nr-th frame
-dt time 0 Only write frame when t MOD dt = first time (ps)
-[no]round bool no Round measurements to nearest picosecond
-dump time -1 Dump frame nearest specified time (ps)
-t0 time 0 Starting time (ps) (default: don't change)
-timestep time 0 Change time step between input frames (ps)
-pbc enum none PBC treatment (see help text for full
description): none, mol, res, atom, nojump,
cluster or whole
-ur enum rect Unit-cell representation: rect, tric or compact
-[no]center bool no Center atoms in box
-boxcenter enum tric Center for -pbc and -center: tric, rect or zero
-box vector 0 0 0 Size for new cubic box (default: read from input)
-clustercenter vector 0 0 0 Optional starting point for pbc cluster option
-trans vector 0 0 0 All coordinates will be translated by trans. This
can advantageously be combined with -pbc mol -ur
compact.
-shift vector 0 0 0 All coordinates will be shifted by framenr*shift
-fit enum none Fit molecule to ref structure in the structure
file: none, rot+trans, rotxy+transxy,
translation, transxy or progressive
-ndec int 3 Precision for .xtc and .gro writing in number of
decimal places
-[no]vel bool yes Read and write velocities if possible
-[no]force bool no Read and write forces if possible
-trunc time -1 Truncate input trajectory file after this time
(ps)
-exec string Execute command for every output frame with the
frame number as argument
-[no]app bool no Append output
-split time 0 Start writing new file when t MOD split = first
time (ps)
-[no]sep bool no Write each frame to a separate .gro, .g96 or .pdb
file
-nzero int 0 If the -sep flag is set, use these many digits
for the file numbers and prepend zeros as needed
-dropunder real 0 Drop all frames below this value
-dropover real 0 Drop all frames above this value
-[no]conect bool no Add conect records when writing .pdb files.
Useful for visualization of non-standard
molecules, e.g. coarse grained ones
Will write pdb: Protein data bank file
Reading file et_vr.tpr, VERSION 4.5.5 (single precision)
Reading file et_vr.tpr, VERSION 4.5.5 (single precision)
Group 0 ( System) has 8 elements
Group 1 ( Other) has 8 elements
Group 2 ( ETH) has 8 elements
Select a group: trn version: GMX_trn_file (single precision)
-> frame 250 time 250.000
gcq#260: "I Quit My Job Blowing Leaves" (Beck)
:-) G R O M A C S (-:
Giving Russians Opium May Alter Current Situation
:-) VERSION 4.5.5 (-:
Written by Emile Apol, Rossen Apostolov, Herman J.C. Berendsen,
Aldert van Buuren, Pär Bjelkmar, Rudi van Drunen, Anton Feenstra,
Gerrit Groenhof, Peter Kasson, Per Larsson, Pieter Meulenhoff,
Teemu Murtola, Szilard Pall, Sander Pronk, Roland Schulz,
Michael Shirts, Alfons Sijbers, Peter Tieleman,
Berk Hess, David van der Spoel, and Erik Lindahl.
Copyright (c) 1991-2000, University of Groningen, The Netherlands.
Copyright (c) 2001-2010, The GROMACS development team at
Uppsala University & The Royal Institute of Technology, Sweden.
check out http://www.gromacs.org for more information.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
:-) g_energy (-:
Option Filename Type Description
------------------------------------------------------------
-f et_vr.edr Input Energy file
-f2 ener.edr Input, Opt. Energy file
-s topol.tpr Input, Opt. Run input file: tpr tpb tpa
-o et_vr_en.xvg Output xvgr/xmgr file
-viol violaver.xvg Output, Opt. xvgr/xmgr file
-pairs pairs.xvg Output, Opt. xvgr/xmgr file
-ora orienta.xvg Output, Opt. xvgr/xmgr file
-ort orientt.xvg Output, Opt. xvgr/xmgr file
-oda orideva.xvg Output, Opt. xvgr/xmgr file
-odr oridevr.xvg Output, Opt. xvgr/xmgr file
-odt oridevt.xvg Output, Opt. xvgr/xmgr file
-oten oriten.xvg Output, Opt. xvgr/xmgr file
-corr enecorr.xvg Output, Opt. xvgr/xmgr file
-vis visco.xvg Output, Opt. xvgr/xmgr file
-ravg runavgdf.xvg Output, Opt. xvgr/xmgr file
-odh dhdl.xvg Output, Opt. xvgr/xmgr file
Option Type Value Description
------------------------------------------------------
-[no]h bool no Print help info and quit
-[no]version bool no Print version info and quit
-nice int 19 Set the nicelevel
-b time 0 First frame (ps) to read from trajectory
-e time 0 Last frame (ps) to read from trajectory
-[no]w bool no View output .xvg, .xpm, .eps and .pdb files
-xvg enum none xvg plot formatting: xmgrace, xmgr or none
-[no]fee bool no Do a free energy estimate
-fetemp real 300 Reference temperature for free energy calculation
-zero real 0 Subtract a zero-point energy
-[no]sum bool no Sum the energy terms selected rather than display
them all
-[no]dp bool no Print energies in high precision
-nbmin int 5 Minimum number of blocks for error estimate
-nbmax int 5 Maximum number of blocks for error estimate
-[no]mutot bool no Compute the total dipole moment from the
components
-skip int 0 Skip number of frames between data points
-[no]aver bool no Also print the exact average and rmsd stored in
the energy frames (only when 1 term is requested)
-nmol int 1 Number of molecules in your sample: the energies
are divided by this number
-[no]driftcorr bool no Useful only for calculations of fluctuation
properties. The drift in the observables will be
subtracted before computing the fluctuation
properties.
-[no]fluc bool no Calculate autocorrelation of energy fluctuations
rather than energy itself
-[no]orinst bool no Analyse instantaneous orientation data
-[no]ovec bool no Also plot the eigenvectors with -oten
-acflen int -1 Length of the ACF, default is half the number of
frames
-[no]normalize bool yes Normalize ACF
-P enum 0 Order of Legendre polynomial for ACF (0 indicates
none): 0, 1, 2 or 3
-fitfn enum none Fit function: none, exp, aexp, exp_exp, vac,
exp5, exp7, exp9 or erffit
-ncskip int 0 Skip N points in the output file of correlation
functions
-beginfit real 0 Time where to begin the exponential fit of the
correlation function
-endfit real -1 Time where to end the exponential fit of the
correlation function, -1 is until the end
Opened et_vr.edr as single precision energy file
Select the terms you want from the following list by
selecting either (part of) the name or the number or a combination.
End your selection with an empty line or a zero.
-------------------------------------------------------------------
1 Bond 2 Angle 3 Ryckaert-Bell. 4 LJ-14
5 Coulomb-14 6 LJ-(SR) 7 LJ-(LR) 8 Coulomb-(SR)
9 Coulomb-(LR) 10 Potential 11 Kinetic-En. 12 Total-Energy
13 Conserved-En. 14 Temperature 15 Pressure 16 Vir-XX
17 Vir-XY 18 Vir-XZ 19 Vir-YX 20 Vir-YY
21 Vir-YZ 22 Vir-ZX 23 Vir-ZY 24 Vir-ZZ
25 Pres-XX 26 Pres-XY 27 Pres-XZ 28 Pres-YX
29 Pres-YY 30 Pres-YZ 31 Pres-ZX 32 Pres-ZY
33 Pres-ZZ 34 #Surf*SurfTen 35 Mu-X 36 Mu-Y
37 Mu-Z 38 T-System 39 Lamb-System
Last energy frame read 2500 time 250.000
gcq#260: "I Quit My Job Blowing Leaves" (Beck)
:-) G R O M A C S (-:
Giving Russians Opium May Alter Current Situation
:-) VERSION 4.5.5 (-:
Written by Emile Apol, Rossen Apostolov, Herman J.C. Berendsen,
Aldert van Buuren, Pär Bjelkmar, Rudi van Drunen, Anton Feenstra,
Gerrit Groenhof, Peter Kasson, Per Larsson, Pieter Meulenhoff,
Teemu Murtola, Szilard Pall, Sander Pronk, Roland Schulz,
Michael Shirts, Alfons Sijbers, Peter Tieleman,
Berk Hess, David van der Spoel, and Erik Lindahl.
Copyright (c) 1991-2000, University of Groningen, The Netherlands.
Copyright (c) 2001-2010, The GROMACS development team at
Uppsala University & The Royal Institute of Technology, Sweden.
check out http://www.gromacs.org for more information.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
:-) g_bond (-:
Option Filename Type Description
------------------------------------------------------------
-f et_vr.trr Input Trajectory: xtc trr trj gro g96 pdb cpt
-n b.ndx Input Index file
-s et_vr.tpr Input, Opt! Structure+mass(db): tpr tpb tpa gro g96 pdb
-o bond_vr.xvg Output xvgr/xmgr file
-l bonds.log Output, Opt. Log file
-d distance.xvg Output, Opt. xvgr/xmgr file
Option Type Value Description
------------------------------------------------------
-[no]h bool no Print help info and quit
-[no]version bool no Print version info and quit
-nice int 19 Set the nicelevel
-b time 0 First frame (ps) to read from trajectory
-e time 0 Last frame (ps) to read from trajectory
-dt time 0 Only use frame when t MOD dt = first time (ps)
-[no]w bool no View output .xvg, .xpm, .eps and .pdb files
-xvg enum none xvg plot formatting: xmgrace, xmgr or none
-blen real -1 Bond length. By default length of first bond
-tol real 0.1 Half width of distribution as fraction of blen
-[no]aver bool yes Average bond length distributions
-[no]averdist bool yes Average distances (turns on -d)
-------------------------------------------------------
Program g_bond, VERSION 4.5.5
Source code file: /build/buildd/gromacs-4.5.5/src/gmxlib/futil.c, line: 491
File input/output error:
b.ndx
For more information and tips for troubleshooting, please check the GROMACS
website at http://www.gromacs.org/Documentation/Errors
-------------------------------------------------------
"I Quit My Job Blowing Leaves" (Beck)
In [2]:
import matplotlib
from matplotlib import pyplot as plt
%matplotlib inline
import numpy as np
In [4]:
names = ("an", "be", "nh", "sd", "vr")
Potential and kinetic energy measurements:
In [25]:
fig, axes = plt.subplots(5,1, figsize=(12,30))
for name, ax in zip(names, axes):
a = np.loadtxt('et_%s_en.xvg' % name)
t = a[:,0]
y_pot = a[:,1]
y_kin = a[:,2]
ax.plot(t, y_pot)
ax.plot(t, y_kin)
ax.set_title(name)
We can see that temperature control methods of Andersen and Berendensen are significantly more stable than those of Nosé–Hoover, stochastic molecular dynamics or velocity rescale.
Bond length distributions:
In [22]:
fig, axes = plt.subplots(5,1, figsize=(12,30), sharex="col")
for name, ax in zip(names, axes):
a = np.loadtxt('bond_%s.xvg' % name)
t = a[:,0]
l = a[:,1]
ax.bar(t,l, width=0.0002)
ax.set_title(name)
#ax.hist(bond_length, density=True, bins=40)
Only Berendensen's and Nosé–Hoover's methods provide the approximately bell-shaped bond length distribution reminiscent of true Boltzmann distribution.
All in all, Berendernsen's thermostat seems to be the most realistic temperature control/simulation method, at least on the given model of ethane molecule.