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<P>Dear all:</P>
<P> </P>
<P>It is my first time to use Gromacs with MPI version. </P>
<P>Can you tell me the number of appointed CPUs when executing "mpirun -np
../mdrun_mpi...."</P>
<P> </P>
<P>By the way:</P>
<P>In my case, if I make np=8, 16 or more, then mdrun_mpi will be
terminated at the beginning. If np=4, this command can work, but its efficiency
is not obviously faster than series computation.</P>
<P>Thanks a lot!</P>
<P> </P>
<P>Regards</P>
<P>Yinghong</P></BODY></HTML>