User`s guide

Chapter IV. iWARP (RDMA)
Chelsio T5/T4 Unified Wire For Linux Page 77
vi. Next, copy the two files created in steps (iv) and (v) to /usr/mpi/gcc/mvapich2-x.y/bin and
/usr/mpi/gcc/mvapich2-x.y/etc
vii. Add the following entries in .bashrc file:
export MVAPICH2_HOME=/usr/mpi/gcc/mvapich2-x.y/
export MV2_USE_IWARP_MODE=1
export MV2_USE_RDMA_CM=1
viii. Register MPI:
[root@host]# mpi-selector --register mvapich2 --source-dir
/usr/mpi/gcc/mvapich2-x.y/bin/
xii. Verify if it is listed in mpi-selector:
[root@host]# mpi-selector --l
ix. Set MVAPICH2:
[root@host]# mpi-selector --set mvapich2 –yes
x. Logut and log back in.
xi. Populate mpd.hosts with node names.
xii. On each node, create /etc/mv2.conf with a single line containing the IP address of the local
T4/T5 interface. This is how MVAPICH2 picks which interface to use for RDMA traffic.
4.2.4. Building MPI tests
i. Download Intel’s MPI Benchmarks from http://software.intel.com/en-us/articles/intel-mpi-
benchmarks
ii. Untar and change your current working directory to src directory.