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ConjugateGradient / P100 vs KNL

n P100 time [ms] KNL time [ms] ratio P100 speed [elements/ms] KNL speed [elements/ms]
100 4.003 7.702 1.92 25.0 13.0
200 4.016 6.263 1.56 49.8 31.9
400 3.982 6.942 1.74 100.5 57.6
800 3.98 6.544 1.64 201.0 122.2
1600 4.006 6.513 1.63 399.4 245.7
3200 3.991 6.557 1.64 801.8 488.0
6400 4.006 6.912 1.73 1597.6 925.9
12800 4.054 7.375 1.82 3157.4 1735.6
25600 5.043 8.917 1.77 5076.3 2870.9
51200 5.662 11.432 2.02 9042.7 4478.7
102400 7.041 17.57 2.50 14543.4 5828.1
204800 11.08 26.262 2.37 18483.8 7798.3
409600 19.556 45.488 2.33 20945.0 9004.6
819200 35.727 81.674 2.29 22929.4 10030.1
1000000 42.077 96.312 2.29 23766.0 10382.9
1638400 66.377 154.229 2.32 24683.2 10623.2
3276800 126.625 297.931 2.35 25878.0 10998.5
6553600 249.148 585.783 2.35 26304.0 11187.8
10000000 376.651 866.736 2.30 26549.8 11537.5
13107200 492.447 1147.08 2.33 26616.5 11426.6
20000000 747.573 1722.9 2.30 26753.2 11608.3
26214400 979.213 2270.56 2.32 26770.9 11545.3

figure

time.png speed.png

Updated