On Mon, Apr 19, 2010 at 12:28 PM, Li, Zhisong (lizs) <lizs at mail.uc.edu>wrote:
> Hi, > > I think this is a beginner's question, but still hope someone can help me > out. > > I've tried to run some PETSc examples and my own simple PETSc codes on my > office's cluster as well as on Ohio Supercomputer Center's machine. At first > I found no speedup for parallel processing and later I noticed by checking > the rank that actually each node is doing the same sequential processing. > I'm sure the codes are parallel codes (such as ex19.c in SNES and ex7.c in > TS tutorial codes). Is there anything I am missing in the installation or > the run command such as"mpiexec -n 3 ex7"? How can I realize a parallel > running? > The mpiexec in your path is not the one you configured with. What MPI is begin used? Matt > BTW, is it okay to ask questions here on a specific PETSc tutorial code? > > Thank you very much! > > Regards, > > > Zhisong Li > > -- What most experimenters take for granted before they begin their experiments is infinitely more interesting than any results to which their experiments lead. -- Norbert Wiener -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20100419/4d53e4ab/attachment.htm>
