[gmx-users] error while concatenating .xtc files

2006-03-02 Thread manmohan singh

Hi there!

 
I was wondering if one can reply me about error that i
m getting.
 while concatenating .xtc file having both solvent and
protein following error is shown. 



Continue writing frames from extend4ns.xtc t=2000 ps,
frame=4000
Reading frame 540 time 2270.000   Fatal error:
Magic Number Error in XTC file (read 4021, should
be 1995)


but no error was obseverd while concatenating .xtc
file having only protein


 Sincerely

manmohan


Manmohan Singh Gurjar
M.Sc.Biotechnology(IInd year)
School of Bioscience and Bioengineering
IIT Powai
 Mumbai-400076
e-mail [EMAIL PROTECTED]
   [EMAIL PROTECTED]
mobile- 9819850822


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Re: [gmx-users] Analysis programs and PBC.

2006-03-02 Thread Anton Feenstra

Daniela S. Mueller wrote:
[...]
If you have one chain, you don't have to worry about jumps. 


In addition, from the cases that I have encountered, you can have 
ligands and/or cofactors (non-covalently) bound to an enzyme, and e.g. 
counter-ions for which you want to analyze the position in relation to 
the protein.



--
Groetjes,

Anton

* NOTE: New Affiliation, Phone  Fax numbers (below) *
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[gmx-users] g_energy average --- bug?

2006-03-02 Thread Fernando Mattio
 Dear all,

 Looking at xmgrace graphics of temperature in function of
time I clearly observe that the temperature in my 200,0 ps simulation
was almost always between 261 K and 263,5K. Looking then the file
md_T.xvg (file of temperature values during the time, that I got using
g_energy), only the 0,1 first ps had different values next to 280 K,
and all the other values where between 261 K and 263,5K. That is the
very beggining, it should not affect that much the average.
 However, the average that I got from g_energy was 264,694
K. I really can not understand why this difference, it should be some
value between 261 K and 263,5K. Is it a bug from g_energy? Should I
trust in this average even knowing that the temperature accordind to
the temperature file didn´t reached this value?? I wait for kind
informations.
 Thanks for your attention,
 Best regards,
 Fernando Mattio
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[gmx-users] steered MD

2006-03-02 Thread Kamil Khafizov

Dear all,

I was trying to pull a ligand from a protein using AFM pulling option of 
Gromacs 3.3 but seems to be that it does not care about parameters that I 
specify in pull.ppa file. In particular, in spite of the fact that I may 
write to the input file coordinates of the unit vector describing the 
direction of pulling, gromacs does it in its own way in the direction of axis
connecting centers of mass of reference and pulled groups AND not in the 
direction indicated in *.ppa file. I tried also do not indicate the 
reference group, thinking that it may work if pulling will be in absolute 
coordinates but I failed again because program just connected center of 
mass of the pulled group and point with coordinates (0 0 0)..

Does someone know how to make it working?

Thanks,
Kamil

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Re: [gmx-users] ligand in vacuum trajectories (PRODRG)

2006-03-02 Thread Farid Sa'adedin

Quoting Dariusz Plewczynski [EMAIL PROTECTED]:




Dear Sirs,

I have a problem with running the short simulation with GROMACS. I have
a structure for a small ligand (drg.pdb after cleaning with PRODRG). For
this ligand I have run PRODRG in order to get drg.gro file and drg.itp
topology file. I have edited the drg.top in order to include drg.itp as
#include. My goal is to run simulation in vacuum (no water) - with only
ligand (!). No protein also. I have tried to run it but I am getting
error message. It seem that GROMACS does not read my topology file. What
I am doing wrong ?

grompp -f em.mdp -c drg.gro -p drg.top -o drg.tpr


Results:


creating statusfile for 1 node...

Back Off! I just backed up mdout.mdp to ./#mdout.mdp.3#
checking input for internal consistency...
calling /lib/cpp...
processing topology...
Generated 1284 of the 1485 non-bonded parameter combinations
processing coordinates...
Fatal error: number of coordinates in coordinate file (drg.gro, 25)
 does not match topology (drg.top, 0)




You need to input the itp file generated by PRODRG of your drug into 
your drg.top file.


do that by #include /your filepathway/drg.itp




Regards

Dariusz



--
Farid Sa'adedin
Membrane Biophysics Laboratory
Department of Veterinary Biomedical Sciences
College of Medicine  Veterinary Medicine
Royal (Dick) School of Veterinary Studies
University of Edinburgh
Summerhall
Edinburgh EH9 1QH
SCOTLAND


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Re: [gmx-users] Compilation problem on SGI ORIGIN 3800

2006-03-02 Thread Patrick Fuchs

David van der Spoel a écrit :


Patrick Fuchs wrote:


Hi gmx users,
I'm trying to compile gromacs in // on an SGI ORIGIN 3800. For the 
monoCPU version it went well (thanks to very good advices on previous 
E-mails of the gmx list), but for the parallel version, I encountered 
a problem. Here are the steps I followed :

setenv CPPFLAGS -I/opt/mpt/1.4.0.3/usr/include -I/usr/local/include
setenv LDFLAGS -L/opt/mpt/1.4.0.3/usr/lib 
-L/usr/local/lib/fftw2.1.5/lib32

setenv LIBS -lmpi
./configure --enable-mpi --prefix=/home/fuchs/software/gromacs 
--program-suffix=_mpi --disable-float --disable-fortran --disable-nice

- This step went OK

make mdrun
- at the beginning it went OK
...
(cd ./src/kernel  make mdrun ; exit 0)
   /bin/sh ../../libtool --mode=link mpicc  -O3 
-OPT:IEEE_arithmetic=3 -OPT:rsqrt=ON -SWP:loop_overhead -INLINE:=ON 
-LNO:opt=1 -LNO:ou_further=3 -OPT:Olimit=0:roundoff=3:alias=typed 
-woff 1174 -D__INLINE_INTRINSICS -I/usr/freeware/include/libxml2   
-L/opt/mpt/1.4.0.3/usr/lib -L/usr/local/lib/fftw2.1.5/lib32  -woff 84 
-o mdrun  glaasje.o gctio.o init_sh.o  ionize.o do_gct.o relax_sh.o  
xutils.o md.o mdrun.o genalg.o ../mdlib/libmd_mpi_d.la 
../gmxlib/libgmx_mpi_d.la  -lnsl -lrfftw_mpi -lfftw_mpi -lrfftw 
-lfftw -lm -lmpi -lXm -lXt  -lSM -lICE -lXext -lX11  
-L/usr/freeware/lib32 -lxml2 -lz -lm
libtool: link: warning: library 
`/usr/local/lib/fftw2.1.5/lib32/librfftw_mpi.la' was moved.


This might be a problem.

libtool: link: warning: library 
`/usr/local/lib/fftw2.1.5/lib32/libfftw_mpi.la' was moved.
libtool: link: warning: library 
`/usr/local/lib/fftw2.1.5/lib32/librfftw.la' was moved.libtool: link: 
warning: library `/usr/local/lib/fftw2.1.5/lib32/libfftw.la' was moved.
libtool: link: warning: library 
`/usr/local/lib/fftw2.1.5/lib32/librfftw_mpi.la' was moved.
libtool: link: warning: library 
`/usr/local/lib/fftw2.1.5/lib32/libfftw_mpi.la' was moved.
libtool: link: warning: library 
`/usr/local/lib/fftw2.1.5/lib32/librfftw.la' was moved.libtool: link: 
warning: library `/usr/local/lib/fftw2.1.5/lib32/libfftw.la' was moved.
mpicc -O3 -OPT:IEEE_arithmetic=3 -OPT:rsqrt=ON -SWP:loop_overhead 
-INLINE:=ON -LNO:opt=1 -LNO:ou_further=3 
-OPT:Olimit=0:roundoff=3:alias=typed -woff 1174 -D__INLINE_INTRINSICS 
-I/usr/freeware/include/libxml2 -woff 84 -o mdrun glaasje.o gctio.o 
init_sh.o ionize.o do_gct.o relax_sh.o xutils.o md.o mdrun.o 
genalg.o  -L/opt/mpt/1.4.0.3/usr/lib -L/usr/local/lib/fftw2.1.5/lib32 
../mdlib/.libs/libmd_mpi_d.a -L/usr/freeware/lib32 
../gmxlib/.libs/libgmx_mpi_d.a -lnsl 
/usr/local/lib/fftw2.1.5/lib32/librfftw_mpi.a 
/usr/local/lib/fftw2.1.5/lib32/libfftw_mpi.a 
/usr/local/lib/fftw2.1.5/lib32/librfftw.a 
/usr/local/lib/fftw2.1.5/lib32/libfftw.a -lmpi -lXm -lXt -lSM -lICE 
-lXext -lX11 -lxml2 -lz -lm

cc: Warning: -OPT options are ignored
cc: Warning: -OPT options are ignored
cc: Warning: -SWP options are ignored
cc: Warning: -OPT options are ignored
uld:
Object file format error in: glaasje.o: bad symbolic header (magic 
number)


Something wrong with this file, delete it.


*** Error code 1 (bu21)
*** Error code 1 (bu21)

I didn't find any similar case in the mailing list, and I'm wondering 
where could it come from.

Does someone have an idea on how to fix that ?
Thanks !

Patrick

Could it be that you have restarted the compilation with differen 
flags? In that case you will have to do

make distclean

On SGI machines it has always been a problem to install the compilers, 
this problem is however hard to distinguish from others.

You might want to start from scratch if make distclean doesn't do it.


Thank you David,
I made a distclean and then used the following :
setenv CPPFLAGS -I/opt/mpt/1.4.0.3/usr/include -I/usr/local/include
setenv LDFLAGS -L/opt/mpt/1.4.0.3/usr/lib -L/usr/local/lib/fftw2.1.5/lib32
setenv LIBS -lmpi
setenv MPICC cc
./configure --enable-mpi --prefix=/home/fuchs/software/gromacs 
--program-suffix=_mpi --disable-float --disable-nice

make mdrun
And it worked ! The thing missing was the line 'setenv MPICC cc', and 
that makes all the difference. The option --disable-fortran has no 
effect wether it's used or not, as long as 'setenv MPICC cc' has been set.

Ciao,

Patrick

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E-mail : [EMAIL PROTECTED]
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