[OMPI users] problem with progress thread and orte

Hi, guys. My application got stuck when I run an application with Open MPI 1.4 with progress thead enabled. The OpenMPI is configured and compiled with the following options. ./configure --with-openib=/usr --enable-trace --enable-debug --enable-peruse --enable-progress-threads Then I started the

[OMPI users] Question about senting short MPI messages using RDMA

Hi, guys. As I understand, to send short MPI messages, OpenMPI copies the messages to preallocated buffer and then uses RDMA. I was wondering if we can avoid the overhead of memory copy. If the user buffers for short messages are reused a lot, we can just register the user buffer instead of using