Re: [OMPI devel] ROMIO+Lustre problems in OpenMPI 1.8.3

2014-10-30 Thread Paul Kapinos
(2nd try as the first log package was too big) Hello Howard, The version 1.8.1 installed on Jun 27 this year run fine, ROMIO is OK. Trying ro re-run using the same install script: found out that also 1.8.1 version of Open MPI now *cannot* build ROMIO support. Wow. That means that the

Re: [OMPI devel] enable-smp-locks affects PSM performance

2014-10-30 Thread Ralph Castain
I believe we did this in the trunk to try and force thread-safety implementation, but I don’t believe it was intended to transition to the release branch. The only thread-related requirement on the release branch is that libevent be configured with thread-support. Anyone know of a reason why

[OMPI devel] enable-smp-locks affects PSM performance

2014-10-30 Thread Friedley, Andrew
Hi, I'm reporting a performance (message rate 16%, latency 3%) regression when using PSM that occurred between OMPI v1.6.5 and v1.8.1. I would guess it affects other networks too, but I haven't tested. The problem stems from the --enable-smp-locks and --enable-opal-multi-threads options.