Aaron, This is not expected behavior.
Please provide your configure & make output. What version of Mpich is your myricom implementation based off? Also please try this program and make sure that it works on all different ppn distributions: http://www.hdfgroup.org/ftp/HDF5/examples/misc-examples/parallel/Sample_mpio.c Thanks, Mohamad From: Hdf-forum [mailto:[email protected]] On Behalf Of Aaron Friesz Sent: Friday, October 18, 2013 10:29 PM To: HDF Users Discussion List Subject: Re: [Hdf-forum] H5Fcreate when using multiple nodes and multiple processors per node I would consider HDF to be pretty silly library if this were expected behavior. :) Clearly there is something wrong with how I have it set up or how the cluster is reacting to it. I just have no idea what it could be. We use MPICH-MX<http://www.myricom.com/support/downloads/mx/mpich-mx.html>. I compile using GNU 3.4.3. The system uses PVFS. My compile is fairly simple: #!/bin/tcsh make clean #must make sure mpicc is in the path first setenv CC "mpicc" ./configure --prefix=[installDir] |tee hdf5cfg.log make |tee make.log make install prefix=[installDir] |tee make_install.log Again, any help or advice on fixing this is greatly appreciated. On Fri, Oct 18, 2013 at 5:59 AM, Matthieu Brucher <[email protected]<mailto:[email protected]>> wrote: This works usually fine. How did you compile the library and with which MPI library? Cheers, Matthieu 2013/10/17 Aaron Friesz <[email protected]<mailto:[email protected]>>: > I'm using the example code here: > http://www.hdfgroup.org/ftp/HDF5/examples/parallel/Hyperslab_by_row.c > > When I run this code with 8 processes on separate nodes, it works fine. > > When I run this code with 8 processes on the same node (ppn=8), it works > fine. > > When I run this code on 2 nodes with 4 processes per node (ppn=4), I get a > segmentation fault in H5Fcreate. > > Any help or guidance would be much appreciated. > > > _______________________________________________ > Hdf-forum is for HDF software users discussion. > [email protected]<mailto:[email protected]> > http://mail.lists.hdfgroup.org/mailman/listinfo/hdf-forum_lists.hdfgroup.org > -- Information System Engineer, Ph.D. Blog: http://matt.eifelle.com LinkedIn: http://www.linkedin.com/in/matthieubrucher Music band: http://liliejay.com/ _______________________________________________ Hdf-forum is for HDF software users discussion. [email protected]<mailto:[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
