Hi All,
We have built OpenMPI (1.8.8., 1.10.0) against Mellanox OFED 2.4 and corresponding MXM. When it runs now, it gives the following warning, per process: [1443457390.911053] [myhist:5891 :0] mxm.c:185 MXM WARN The 'ulimit -s' on the system is set to 'unlimited'. This may have negative performance implications. Please set the heap size to the default value (10240) We have ulimits for heap (as well as most of the other limits) set unlimited because of applications that might possibly need a lot of RAM. The question is if we should do as MXM wants, or ignore it? Has anyone an experience running recent OpenMPI with MXM enabled, and what kind of ulimits do you have? Any suggestions/comments appreciated, thanks! -- Grigory Shamov Westgrid/ComputeCanada Site Lead University of Manitoba E2-588 EITC Building, (204) 474-9625
