[gmx-users] gromacs-4: statring in parallel on solaris 8

DimitryASuplatov genesup at gmail.com
Mon Nov 3 16:28:30 CET 2008

I have installed gromacs-4 on Solaris 8 with mpi support.
I was very disappointed by the lack of -np option in grompp and mdrun.
After reading the manual and the site I came to a conclusion that now we
do not need to specify number of nodes via gromacs status file but
instead use mpirun option only.
Executing (for gromacs benchmarking set)

mpirun c0-5 mdrun_mpi -v

starts six threads on six processors though output speed is the same as
for a single-node run. No errors, no warnings.

So, am I doing wrong with gromacs parallelization or is this the problem
of the Solaris MPI?

Thank you.

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