On May 26, 2016, at 12:23 AM, Sreenidhi Bharathkar Ramesh <sreenidhi-bharathkar.ram...@broadcom.com> wrote: > > Hi, > > > - Improved support for MPI_THREAD_MULTIPLE (when configured with > > --enable-mpi-thread-multiple). > > Just curious to know why this is not enabled by default. Are there any known > issues ?
Using THREAD_MULTIPLE enables the use of additional thread locks and other synchronization primitives; it has a performance cost. Additionally, Open MPI's journey towards full THREAD_MULTIPLE support has been long. We're moving in that direction cautiously. > I was able to run HPCC benchmark with np=56, without any issues. Hence, > wondering. Great! -- Jeff Squyres jsquy...@cisco.com For corporate legal information go to: http://www.cisco.com/web/about/doing_business/legal/cri/
