Dear, I'm using Mellanox infiniband network card and trying to run it with openmpi. The problem is that I can connect and communicate between nodes, but I'm not sure whether it is in a correct state or not.
I have two version of openmpi, one is compiled with mca-btl-openib and the other is without btl-openib.(I checked it in ompi_info) And my jobs are running well using the openmpi without btl-openib, but when I run the exactly same job using openmpi with btl-openmpi, I meet the following error. * mlx4: There is a mismatch between the kernel and the userspace libraries: Kernel does not support XRC. Exiting.* and the following is written in another log file * CMA: unable to open RDMA device* What I'm thinking is that the infiniband card is installed but it doesn't work in correct mode. My linux kernel version is *2.6.18-164.el5*, and installed ofed version is *kernel-ib-pp-1.4.1-ofed20090528r1.4.1sgi605r1.rhel5 .* Thanks, Heejin
