Bcast is one of PMB's Collective Benchmarks. It is a benchmark of MPI_Bcast. A root process broadcasts X bytes to all.
2-node Cluster Results
4-node Cluster Results
8-node Cluster Results
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#bytes #reps linux dom0 domU(noSMP) domU(SMP)
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#bytes #reps linux dom0 domU(noSMP) domU(SMP)
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#bytes #reps linux dom0 domU(noSMP) domU(SMP) -------------------------------------------------------------------------- 0 1000 0.33 0.37 0.34 0.32 1 1000 1448.82 1592.71 1563.93 2736.25 2 1000 1005.43 898.37 992.76 2694.67 4 1000 896.92 596.40 780.34 2856.11 8 1000 660.24 464.74 664.55 2840.03 16 1000 343.29 364.07 858.66 2584.72 32 1000 254.63 352.54 842.20 3029.56 64 1000 246.06 375.81 923.26 2846.53 128 1000 248.30 394.70 722.60 2326.31 256 1000 378.87 450.62 493.74 2397.41 512 1000 380.29 465.42 598.23 1374.09 1024 1000 540.30 627.39 734.28 969.63 2048 1000 869.63 945.02 1096.43 2752.31 4096 1000 1411.73 1467.94 1616.23 3925.30 8192 1000 2521.69 2627.59 2743.90 16074.78 16384 1000 4731.31 4846.31 5008.05 21737.17 32768 1000 9397.52 9474.32 9520.48 43107.54 65536 640 18408.99 18582.84 18643.25 62407.58 131072 320 38568.55 38821.14 39893.62 80464.52 262144 160 76874.85 77555.33 78715.98 130192.57 524288 80 154364.62 155680.12 157128.02 240028.32 1048576 40 308489.51 313088.59 312406.44 436921.43 2097152 20 615898.41 621654.67 621937.28 889987.07 4194304 10 1227055.14 1238512.49 1236560.14 1746532.49
