[gmx-users] Perplexed about MPI
K.A. Feenstra
Feenstra at chem.vu.nl
Mon Nov 4 08:33:10 CET 2002
dr.horsfield at physics.org wrote:
>
> Hi,
>
> I have begun to despair of MPI! I have LAM-MPI 6.5.7 installed. It passes
> the test suite perfectly, and the Pallas MPI benchmarks run fine. I have
> gromacs 3.1.4 installed, and I have compiled it for MPI. A particular
> small job runs fine on 2 processors (either on the same box, or on two
> boxes), but falls over immediately on 3 or 4, with the error:
[...]
> Could the problem be that the number of atoms on each node is not the same
> for 3 or 4 processors? Any suggestions?
Did the files md0.log, md1.log, md3.log and so on get generated?
If so, have you had a look at them? They are from each of the
individual mdrun processes.
--
Groetjes,
Anton
________ ___________________________________________________________
| | Anton Feenstra |
| . | Dept. of Pharmacochemistry - Vrije Universiteit Amsterdam |
| |---- | De Boelelaan 1083 - 1081 HV Amsterdam - The Netherlands |
| |---- | Tel: +31 20 44 47608 - Fax: +31 20 44 47610 |
| ' __ | Feenstra at chem.vu.nl - http://www.chem.vu.nl/afdelingen/FAR|
| / \ |-----------------------------------------------------------|
| ( ) | Dept. of Biophysical Chemistry - University of Groningen |
| \__/ | Nijenborgh 4 - 9747 AG Groningen - The Netherlands |
| __ | Tel +31 50 363 4327 - Fax +31 50 363 4800 |
| / \ | K.A.Feenstra at chem.rug.nl - http://md.chem.rug.nl/~anton |
| ( ) |-----------------------------------------------------------|
| \__/ | "If You See Me Getting High, Knock Me Down" |
| | (Red Hot Chili Peppers) |
|________|___________________________________________________________|
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