This version (2017/08/31 13:44) is a draft.
Approvals: 0/1The Previously approved version (2014/06/18 08:19) is available.Diff

This is an old revision of the document!

General recommendations

To make sure that the MPI communication happens via the infiniband fabric, please use the following settings in your job-script and/or in your .bashrc file: 

export I_MPI_DAT_LIBRARY=/usr/lib64/libdat2.so.2
export OMP_NUM_THREADS=1
export I_MPI_FABRICS=shm:dapl
export I_MPI_FALLBACK=0
export I_MPI_CPUINFO=proc
export I_MPI_PIN_PROCESSOR_LIST=1,14,9,6,5,10,13,2,3,12,11,4,7,8,15,0
export I_MPI_JOB_FAST_STARTUP=0
  • doku/grecommendations.1504187050.txt.gz
  • Last modified: 2017/08/31 13:44
  • by ir