Performance numbers of MVAPICH2-X on Intel Haswell Architecture Intra-Node (06/10/20)

Communication MPI Latency Bandwidth Bidirectional Bandwidth Notes
Intra-Socket 0.24 us 21326.45 MBps* 38839.13 MBps* MV2_CPU_MAPPING=1:2
*MBps = Million Bytes per second
Inter-Socket 0.51 us 20275.67 MBps* 38090.69 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 7.7.1908

Intra-Socket

mv2x osu_latency
mv2x osu_bw
mv2x osu_bibw

Inter-Socket

mv2x osu_latency
mv2x osu_bw
mv2x osu_bibw