> Hello, every body. I have a question about parallel running of mdrun_mpi. I > doubt that sometimes the parallel running of mdrun_mpi can not utilize the > domain decomposition. > This is the case when I use the batch work in the computer cluster which > install the MPICH2. In the case, I use commond like ''mpirun -np 8 mdrun_mpi > -deffnm *** -v'' . (The command ''mpirun -np 3 /usr/bin/mdrun_mpi -deffnm > *** -v'' doesn't work) .The working didn't show any information about domain > decomposition. And the computing rate is rather slow, which is only a little > bit higher than single CPU. > > However, in my person computer which install the MPICH (not MPICH 2), I use > the commond like this ''mpirun -np 3 /usr/bin/mdrun_mpi -deffnm *** -v''. It > would show the domain decomposition and the speed is quicked than 8 CPUS. > > What is the problem??? > > > > >
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