Performance numbers of MVAPICH2-X on Intel Haswell Architecture Inter-Node (07/23/18)

MPI Latency Bandwidth Bidirectional Bandwidth Notes
Intra-Socket 0.22 us 20851.28 MBps* 38799.96 MBps* MV2_CPU_MAPPING=1:2
*MBps = Million Bytes per second
Inter-Socket 0.41 us 19864.73 MBps* 36920.69 MBps* MV2_CPU_MAPPING=1:11
*MBps = Million Bytes per second

Machine Specifications

CPU Model CPU Core Info Memory OS
Intel E5-2687W 2x10 @ 3.1GHz 64GB CentOS 7.4.1708

Intra-Socket

Inter-Socket