Re: [gmx-users] do_dssp crashes on certain machines..

2007-04-19 Thread Florian Haberl
hi,

On Thursday, 19. April 2007 17:23, Mark Abraham wrote:
> [EMAIL PROTECTED] wrote:
> > Dear community,
> >
> > I have the following problem with do_dssp, when I try analysing a long 70
> > ns trajectory produced by a REMD calculation. All my previous analysis
> > went fine, when the trajectory had a length of ~= 50ns. However, I now
> > obtain the following errror message, perhaps one hour after launching
> > do_dssp, when the standard error message says frames around 54ns are
> > being analysed:
> >
> >
> > Group12 (  Cl) has 8 elements
> > Group13 ( SOL) has 42228 elements
> > Group14 (   Other) has 42236 elements
> > Select a group: There are 103 residues in your selected group
> > Opening library file
> > /home/coutinho/software/gromacs-3.3.0/icc9.0/share/gromacs/top/ss.map
> > Reading frame   0 time0.000
> > Back Off! I just backed up ddKGQneH to ./#ddKGQneH.1#
> > Reading frame   36630 time 54945.000
> > ---
> > Program do_dssp, VERSION 3.3
> > Source code file: futil.c, line: 340
> >
> > File input/output error:
> > ddr3C7fs
> > ---
> >
> >
> > I guess this problem is due to the architecture/memory of the nodes of
> > the cluster I use (where this error occurs whether do_dssp is the only
> > job on the node or not): The same analysis works fine on another machine.
> > The cluster I use is made of Hewlett-Packard ProLiant DL145 G2 AMD
> > Opteron Model 246 nodes. The nodes contain two AMD opteron 2.4GHz cpus
> > and 4*1GB memory.
> >
> > I thank you very much for any suggestions!
>
> Do the analysis piecewise... trjconv to break the .trr into chunks, and
> now you can even do the analysis in parallel.

Could be a nice application for pushing parallel filesystems to its limits!

Perhaps it could be implemented in upcoming gromacs versions, something like 
mpich wrapper for certain analysis tools.
>
> Mark
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Grettings,

Florian

-- 
---
 Florian Haberl
 Computer-Chemie-Centrum   
 Universitaet Erlangen/ Nuernberg
 Naegelsbachstr 25
 D-91052 Erlangen
 Telephone: +49(0) − 9131 − 85 26581
 Mailto: florian.haberl AT chemie.uni-erlangen.de
---
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Re: [gmx-users] do_dssp crashes on certain machines..

2007-04-19 Thread Mark Abraham

[EMAIL PROTECTED] wrote:

Dear community,

I have the following problem with do_dssp, when I try analysing a long 70 ns
trajectory produced by a REMD calculation. All my previous analysis went fine,
when the trajectory had a length of ~= 50ns. However, I now obtain the following
errror message, perhaps one hour after launching do_dssp, when the standard
error message says frames around 54ns are being analysed:


Group12 (  Cl) has 8 elements
Group13 ( SOL) has 42228 elements
Group14 (   Other) has 42236 elements
Select a group: There are 103 residues in your selected group
Opening library file
/home/coutinho/software/gromacs-3.3.0/icc9.0/share/gromacs/top/ss.map
Reading frame   0 time0.000
Back Off! I just backed up ddKGQneH to ./#ddKGQneH.1#
Reading frame   36630 time 54945.000  
---

Program do_dssp, VERSION 3.3
Source code file: futil.c, line: 340

File input/output error:
ddr3C7fs
---


I guess this problem is due to the architecture/memory of the nodes of the
cluster I use (where this error occurs whether do_dssp is the only job on the
node or not): The same analysis works fine on another machine. The cluster I use
is made of Hewlett-Packard ProLiant DL145 G2 AMD Opteron Model 246 nodes. The
nodes contain two AMD opteron 2.4GHz cpus and 4*1GB memory.

I thank you very much for any suggestions!


Do the analysis piecewise... trjconv to break the .trr into chunks, and 
now you can even do the analysis in parallel.


Mark
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[gmx-users] do_dssp crashes on certain machines..

2007-04-19 Thread pascal . baillod
Dear community,

I have the following problem with do_dssp, when I try analysing a long 70 ns
trajectory produced by a REMD calculation. All my previous analysis went fine,
when the trajectory had a length of ~= 50ns. However, I now obtain the following
errror message, perhaps one hour after launching do_dssp, when the standard
error message says frames around 54ns are being analysed:


Group12 (  Cl) has 8 elements
Group13 ( SOL) has 42228 elements
Group14 (   Other) has 42236 elements
Select a group: There are 103 residues in your selected group
Opening library file
/home/coutinho/software/gromacs-3.3.0/icc9.0/share/gromacs/top/ss.map
Reading frame   0 time0.000
Back Off! I just backed up ddKGQneH to ./#ddKGQneH.1#
Reading frame   36630 time 54945.000  
---
Program do_dssp, VERSION 3.3
Source code file: futil.c, line: 340

File input/output error:
ddr3C7fs
---


I guess this problem is due to the architecture/memory of the nodes of the
cluster I use (where this error occurs whether do_dssp is the only job on the
node or not): The same analysis works fine on another machine. The cluster I use
is made of Hewlett-Packard ProLiant DL145 G2 AMD Opteron Model 246 nodes. The
nodes contain two AMD opteron 2.4GHz cpus and 4*1GB memory.

I thank you very much for any suggestions!

Pascal Baillod



***
Pascal Baillod (PhD student) 
***
Swiss Federal Institute of Technology EPFL  Tel: +41-(0)21-693-0322
Institute of Chemical Sciences and Engineering ,Fax: +41-(0)21-693-0320
Laboratory of Computational Chemistry and Biochemistry  [EMAIL PROTECTED]
Room BCH 4121, Avenue Forel,http://lcbcpc21.epfl.ch
CH-1015 Lausanne
***
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