Re: [OMPI users] Building OpenMPI with Lustre support using PGI fails

2018-11-27 Thread Latham, Robert J. via users
On Tue, 2018-11-13 at 21:57 -0600, gil...@rist.or.jp wrote: > Raymond, > > can you please compress and post your config.log ? I didn't see the config.log in response to this. Maybe Ray and Giles took the discusison off list? As someone who might have introduced the offending configure-time chec

Re: [OMPI users] MPI I/O question using MPI_File_write_shared

2020-06-12 Thread Latham, Robert J. via users
On Fri, 2020-06-05 at 19:52 -0400, Stephen Siegel via users wrote: > Sure, I’ll ask the machine admins to update and let you know how it > goes. > In the meantime, I was just wondering if someone has run this little > program with an up-to-date OpenMPI and if it worked. If so, then I > will know

Re: [OMPI users] MPI I/O, Romio vs Ompio on GPFS

2023-08-09 Thread Latham, Robert J. via users
Hah! look at me ressurecting this old thread...I should check in on my OpenMPI folder more often than every 18 months. Historically, GPFS performs best with block-aligned I/O. Today, the performance difference between unaligned and aligned is not as dramatic as it used to be (at least on ORNL's