orangefs is one of the file systems that we test regularly for the MPI
I/O part in OpenMPI. Our test system uses though 2.9.4 at this time, but
fundamentally it should work.
How did you configure OpenMPI? And I am assuming you can access the
orangefs filesystem correctly from both nodes?
Thanks
Edgar
On 11/18/2017 5:34 PM, Weihao Liang wrote:
Hi all,
I met an odd problem when using multiple node to write one file on
orangefs. I have two node (node0, node1) and my MPI is OpenMPI-3.0 and
orangefs-2.9. I just do a simple experiment like using multiple
processes to write one shared file. When the processes is in one node,
everything is fine (POSIX I/O, MPI-IO). But when the processes is
among two nodes (mpirun --hostfile), the program failed to open a new
file (POPSIX I/O failed in open64() and MPI_IO failed in
MPI_File_open() ).
Did anyone meet this problem before? Any help is appreciated.
Thank you!
Vinson
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