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@jacobkahn
Created July 23, 2019 22:03
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NCCL Tests on 8 node p3dn.24xlarge + EFA - all_reduce_perf -b 8 -e 1G -f 2 -g 1 -c 1 -n 100
#
# out-of-place in-place
# size count type redop time algbw busbw error time algbw busbw error
# (B) (elements) (us) (GB/s) (GB/s) (us) (GB/s) (GB/s)
8 2 float sum 631.3 0.00 0.00 2e-07 632.3 0.00 0.00 0e+00
16 4 float sum 686.3 0.00 0.00 2e-07 631.1 0.00 0.00 2e-07
32 8 float sum 627.5 0.00 0.00 2e-07 628.7 0.00 0.00 2e-07
64 16 float sum 632.0 0.00 0.00 2e-07 629.6 0.00 0.00 1e-07
128 32 float sum 629.1 0.00 0.00 2e-07 628.8 0.00 0.00 2e-07
256 64 float sum 628.2 0.00 0.00 2e-07 628.3 0.00 0.00 2e-07
512 128 float sum 631.8 0.00 0.00 2e-07 628.6 0.00 0.00 2e-07
1024 256 float sum 634.2 0.00 0.00 1e-06 632.8 0.00 0.00 1e-06
2048 512 float sum 633.3 0.00 0.01 1e-06 630.2 0.00 0.01 1e-06
4096 1024 float sum 631.6 0.01 0.01 2e-06 628.4 0.01 0.01 2e-06
8192 2048 float sum 637.2 0.01 0.03 2e-06 632.9 0.01 0.03 2e-06
16384 4096 float sum 644.3 0.03 0.05 2e-06 644.5 0.03 0.05 2e-06
32768 8192 float sum 663.2 0.05 0.10 2e-06 660.3 0.05 0.10 2e-06
65536 16384 float sum 676.9 0.10 0.19 2e-06 675.8 0.10 0.19 2e-06
131072 32768 float sum 709.4 0.18 0.36 2e-06 707.1 0.19 0.36 2e-06
262144 65536 float sum 738.2 0.36 0.70 2e-06 741.0 0.35 0.70 2e-06
524288 131072 float sum 838.1 0.63 1.23 2e-06 833.4 0.63 1.24 2e-06
1048576 262144 float sum 987.4 1.06 2.09 2e-06 992.1 1.06 2.08 2e-06
2097152 524288 float sum 1262.2 1.66 3.27 2e-06 1240.8 1.69 3.33 2e-06
4194304 1048576 float sum 2850.1 1.47 2.90 2e-06 2839.2 1.48 2.91 2e-06
8388608 2097152 float sum 4182.2 2.01 3.95 2e-06 4192.1 2.00 3.94 2e-06
16777216 4194304 float sum 8162.7 2.06 4.05 2e-06 8187.6 2.05 4.03 2e-06
33554432 8388608 float sum 11974 2.80 5.52 2e-06 11971 2.80 5.52 2e-06
67108864 16777216 float sum 17573 3.82 7.52 2e-06 17541 3.83 7.53 2e-06
134217728 33554432 float sum 31964 4.20 8.27 2e-06 31966 4.20 8.27 2e-06
268435456 67108864 float sum 59976 4.48 8.81 2e-06 59969 4.48 8.81 2e-06
536870912 134217728 float sum 118650 4.52 8.91 2e-06 119071 4.51 8.88 2e-06
1073741824 268435456 float sum 206646 5.20 10.23 2e-06 206768 5.19 10.22 2e-06
# Out of bounds values : 0 OK
# Avg bus bandwidth : 2.4357
#
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