SencRecv is one of PMB's Parallel Transfer Benchmarks. Based on MPI_Sendrecv,
the processes form a periodic communication
chain. Each process sends to the right and receives from the left neighbor in
the chain.
The turnover count is 2 messages per sample (1 in, 1 out) for each process.
Sendrecv is equivalent with the Cshift benchmark and, in case of 2 processes,
the PingPing benchmark of PMB1.x. For 2 processes, it will report
the bi-directional bandwidth of the system, as obtained by the (optimized)
MPI_Sendrecv function.
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)
--------------------------------------------------------------------------
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#bytes #reps linux dom0 domU(noSMP) domU(SMP)
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#bytes #reps linux dom0 domU(SMP) domU(noSMP) -------------------------------------------------------------------------- 0 1000 1977.92 1933.71 2628.84 3329.24 1 1000 1606.17 859.68 2954.64 3329.35 2 1000 1687.79 724.26 2764.47 3708.08 4 1000 1613.15 426.52 2481.06 3540.98 8 1000 384.06 282.39 2385.76 3326.26 16 1000 178.31 280.87 2739.28 3104.53 32 1000 183.47 284.91 2270.88 2835.78 64 1000 191.11 294.97 1992.58 3310.37 128 1000 203.41 308.48 588.25 3445.02 256 1000 226.73 336.54 434.53 1391.99 512 1000 288.57 405.45 491.32 1111.03 1024 1000 375.39 516.08 586.76 1260.99 2048 1000 498.92 739.06 764.88 2007.58 4096 1000 722.78 925.39 984.56 2457.22 8192 1000 1172.61 1411.11 2238.01 4172.41 16384 1000 2089.53 2313.20 5906.05 9971.30 32768 1000 6284.80 5554.05 10792.55 24828.09 65536 640 24722.79 13471.37 30270.34 64670.69 131072 320 32415.03 32664.81 32942.32 147792.17 262144 160 65917.24 61949.30 66632.82 207830.00 524288 80 123976.45 129890.96 131876.07 259392.54 1048576 40 261248.37 263271.88 245035.49 389769.31 2097152 20 500725.41 525550.69 565333.27 883586.22 4194304 10 1021610.90 1038750.95 1087948.76 1851702.73
#bytes #reps linux dom0 domU(SMP) domU(noSMP) -------------------------------------------------------------------------- 0 1000 0.00 0.00 0.00 0.00 1 1000 0.00 0.00 0.00 0.00 2 1000 0.00 0.01 0.00 0.00 4 1000 0.00 0.02 0.00 0.00 8 1000 0.04 0.05 0.01 0.00 16 1000 0.17 0.11 0.01 0.01 32 1000 0.33 0.21 0.03 0.02 64 1000 0.64 0.41 0.07 0.04 128 1000 1.20 0.79 0.49 0.07 256 1000 2.15 1.45 1.12 0.36 512 1000 3.38 2.41 1.99 0.88 1024 1000 5.20 3.78 3.33 1.56 2048 1000 7.83 5.28 5.10 1.97 4096 1000 10.80 8.44 7.93 3.36 8192 1000 13.33 11.07 7.06 3.63 16384 1000 14.95 13.51 5.32 3.14 32768 1000 9.94 11.25 5.78 2.52 65536 640 5.05 9.28 4.13 1.92 131072 320 7.70 7.64 7.58 1.69 262144 160 7.56 8.05 7.47 2.39 524288 80 8.08 7.64 7.54 3.82 1048576 40 7.55 7.49 8.09 5.00 2097152 20 7.80 7.39 6.85 4.39 4194304 10 7.40 7.29 6.98 3.99
