I gathered from your reply that my results were strange so I went back and tested again. It seems I messed up the first time and ran it twice on one node with 4 ppn.
It does indeed fail when all the process are on separate nodes (H5Fcreate only failed in the mixed case). Does this mean something specific? On Sat, Oct 19, 2013 at 5:03 PM, Mohamad Chaarawi <[email protected]>wrote: > Hi Aaron,**** > > ** ** > > This seams a problem with your MPI library setup with PVFS(2?).**** > > Maybe Rob will glance over this thread and can tell you what your problem > is.**** > > ** ** > > The fact where you are saying that your program works with 1 process per > node puzzles me. This rules out the problem where the file is not visible > from other nodes.**** > > So I am not really sure what the problem here is.**** > > ** ** > > Thanks,**** > > Mohamad**** > > ** ** > > ** ** > > *From:* Hdf-forum [mailto:[email protected]] *On > Behalf Of *Aaron Friesz > *Sent:* Saturday, October 19, 2013 5:12 PM > > *To:* HDF Users Discussion List > *Subject:* Re: [Hdf-forum] H5Fcreate when using multiple nodes and > multiple processors per node**** > > ** ** > > Mohamad,**** > > ** ** > > Thanks for your help. **** > > ** ** > > When I ran Simple_mpio.c with 2 nodes and 2 ppn, I again got segmentation > faults. It works fine when the processes are all on separate nodes. It > also works when all processes are on the same node.**** > > ** ** > > What could cause this? What do I need to tell the system administrator > needs to be fixed?**** > > ** ** > > I haven't been able to figure out a version number for myricom yet.**** > > ** ** > > On Sat, Oct 19, 2013 at 11:08 AM, Mohamad Chaarawi <[email protected]> > wrote:**** > > Inline..**** > > **** > > **** > > *From:* Hdf-forum [mailto:[email protected]] *On > Behalf Of *Aaron Friesz > *Sent:* Friday, October 18, 2013 11:43 PM**** > > > *To:* HDF Users Discussion List > *Subject:* Re: [Hdf-forum] H5Fcreate when using multiple nodes and > multiple processors per node**** > > **** > > Mohamad,**** > > **** > > How would I find the MPICH version for myricom? If there is a way to > query the system, I'll do that tomorrow when I re-run the mpio test (I've > run it before, but I don't know that I tried different ppn vs. node > distributions).**** > > **** > > [msc] maybe mpicc –version :-?**** > > **** > > Also for the configure and make output, can I simply send those as an > attachment with a reply email?**** > > **** > > [msc] Sure. **** > > **** > > **** > > Mohamad**** > > > _______________________________________________ > Hdf-forum is for HDF software users discussion. > [email protected] > > http://mail.lists.hdfgroup.org/mailman/listinfo/hdf-forum_lists.hdfgroup.org > **** > > ** ** > > _______________________________________________ > Hdf-forum is for HDF software users discussion. > [email protected] > > http://mail.lists.hdfgroup.org/mailman/listinfo/hdf-forum_lists.hdfgroup.org > >
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