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GASNet Performance Examples

The following graphs show performance examples of GASNet release v1.26.4, measured 8/2016.

   (Also available: Performance on older systems)

Test Methodology:

All tests use two physical nodes, with one core injecting communication operations to the remote node and all other cores idle. Hardware configuration details are provided in each section.

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aries-conduit: Cray XC30, Cray XC40
gemini-conduit: Cray XK7
pami-conduit: BlueGene/Q
ibv-conduit: InfiniBand FDR

aries-conduit vs MPI: on 'Edison' at NERSC

Edison: Cray XC30, Cray Aries Interconnect, Node config: 2 x 12-core 2.4 GHz Intel "Ivy Bridge", PE 5.2.56, Cray MPICH 7.4.1

bwlat

aries-conduit vs MPI: on 'Cori' (Phase I) at NERSC

Cori: Cray XC40, Cray Aries Interconnect, Node config: 2 x 16-core 2.3 GHz Intel "Haswell", PE 6.0.3, Cray MPICH 7.4.0

bwlat

gemini-conduit vs MPI: on 'Titan' at Oak Ridge National Laboratory (OLCF)

Titan: Cray XK7, Cray Gemini Interconnect, Node config: 16-core 2.2 GHz AMD Opteron 6274 (GPUs not used), PE 5.2.82, Cray MPICH 7.2.5

bwlat

pami-conduit vs MPI: on 'Cetus' at Argonne National Laboratory (ALCF)

Cetus: IBM BlueGene/Q, Custom interconnect, Node config: 16-core 1.6 GHz PowerPC A2, IBM XLC for BlueGene v12.1, MPICH2 v1.5

bwlat

ibv-conduit vs MPI: on 'Stampede' at UT Austin Texas Advanced Computing Center (TACC)

Stampede: Mellanox InfiniBand FDR, Node config: 2 x 8-core 2.7/3.5 GHz Intel Xeon E5-2680 (Xeon Phi co-processor not used), x16 PCIe bus, Intel C 15.0.2, MVAPICH2 2.1 ch3:mrail

bwlat

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