[gmx-users] parallel problem

David van der Spoel spoel at xray.bmc.uu.se
Fri Mar 1 19:54:13 CET 2002


On Fri, 1 Mar 2002, Yuguang Mu wrote:

>I do use
> mpirun -c 2 mdrun -np 2  -s mini
>But the problem is the same :
>
>Back Off! I just backed up mini.log to #mini.log#
>Reading file mini.tpr, VERSION 3.0.5 (single precision)
>Reading file mini.tpr, VERSION 3.0.5 (single precision)
>Fatal error: run input file mini.tpr was made for 2 nodes,
>             while mdrun expected it to be for 1 nodes.
>[0] MPI Abort by user Aborting program !
>[0] Aborting program!
>    p4_error: latest msg from perror: No such file or directory
Hm, apparently you are using MPICH. I don't know whether we have a MPICH 
expert in the audience?

We've had some reports about MPICH before, but hitherto it has ended 
mostly in people moving to LAM...

Groeten, David.
________________________________________________________________________
Dr. David van der Spoel, 	Biomedical center, Dept. of Biochemistry
Husargatan 3, Box 576,  	75123 Uppsala, Sweden
phone:	46 18 471 4205		fax: 46 18 511 755
spoel at xray.bmc.uu.se	spoel at gromacs.org   http://zorn.bmc.uu.se/~spoel
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