[gmx-users] Parallel gromacs job: unknown error.

[David]

On Wed, 2003-11-19 at 23:50, Mr.Sridhar wrote:

>         :-)
> /home/others/hanram/SRIDHAR/GROMACS/powerpc-ibm-aix5.1.0.0/power4/bin/mdrun_mpi_gigabit
> (-:
> 

> Back Off! I just backed up md0.log to ./#md0.log.1#
> Reading file b4pr_1cyp_WT.tpr, VERSION 3.1.4 (single precision)
> Reading file b4pr_1cyp_WT.tpr, VERSION 3.1.4 (single precision)
> ERROR: 0031-250  task 2: Illegal instruction
> ERROR: 0031-250  task 1: Illegal instruction
> ERROR: 0031-250  task 0: Terminated
> ERROR: 0031-250  task 3: Terminated
> ############################################################################
> 
> The error is not obvious. Any body could suggest what could be wrong ?
> 

Since you are on an IBM this could be due to that you have optimized the
code for a Power4 node and are running on a Power2 node (or Power3).

There are two solutions: compile everything for Power2 (works everywhere
but slower), or make sure you are running on the node type you compiled
for.
> 
> sridhar
> 
> 
> 
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-- 
David.
________________________________________________________________________
David van der Spoel, PhD, Assist. Prof., Molecular Biophysics group,
Dept. of Cell and Molecular Biology, Uppsala University.
Husargatan 3, Box 596,  	75124 Uppsala, Sweden
phone:	46 18 471 4205		fax: 46 18 511 755
spoel at xray.bmc.uu.se	spoel at gromacs.org   http://xray.bmc.uu.se/~spoel
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