Hi All, I am trying to interpret the results from "make stream" on two compute nodes, where each node has 48 cores.
If my calculations are memory bandwidth limited, such as AMG, MatVec, GMRES, etc.. The best speedup I could get is 16.6938 if I start from one core?? The speedup for function evaluations and Jacobian evaluations can be better than16.6938? Thanks, Fande, Running streams with 'mpiexec ' using 'NPMAX=96' 1 19412.4570 Rate (MB/s) 2 29457.3988 Rate (MB/s) 1.51744 3 40483.9318 Rate (MB/s) 2.08546 4 51429.3431 Rate (MB/s) 2.64929 5 59849.5168 Rate (MB/s) 3.08304 6 66124.3461 Rate (MB/s) 3.40628 7 70888.1170 Rate (MB/s) 3.65167 8 73436.2374 Rate (MB/s) 3.78294 9 77441.7622 Rate (MB/s) 3.98927 10 78115.3114 Rate (MB/s) 4.02397 11 81449.3315 Rate (MB/s) 4.19572 12 82812.3471 Rate (MB/s) 4.26593 13 81442.2114 Rate (MB/s) 4.19535 14 83404.1657 Rate (MB/s) 4.29642 15 84165.8536 Rate (MB/s) 4.33565 16 83739.2910 Rate (MB/s) 4.31368 17 83724.8109 Rate (MB/s) 4.31293 18 83225.0743 Rate (MB/s) 4.28719 19 81668.2002 Rate (MB/s) 4.20699 20 83678.8007 Rate (MB/s) 4.31056 21 81400.4590 Rate (MB/s) 4.1932 22 81944.8975 Rate (MB/s) 4.22124 23 81359.8615 Rate (MB/s) 4.19111 24 80674.5064 Rate (MB/s) 4.1558 25 83761.3316 Rate (MB/s) 4.31481 26 87567.4876 Rate (MB/s) 4.51088 27 89605.4435 Rate (MB/s) 4.61586 28 94984.9755 Rate (MB/s) 4.89298 29 98260.5283 Rate (MB/s) 5.06171 30 99852.8790 Rate (MB/s) 5.14374 31 102736.3576 Rate (MB/s) 5.29228 32 108638.7488 Rate (MB/s) 5.59633 33 110431.2938 Rate (MB/s) 5.68867 34 112824.2031 Rate (MB/s) 5.81194 35 116908.3009 Rate (MB/s) 6.02232 36 121312.6574 Rate (MB/s) 6.2492 37 122507.3172 Rate (MB/s) 6.31074 38 127456.2504 Rate (MB/s) 6.56568 39 130098.7056 Rate (MB/s) 6.7018 40 134956.4461 Rate (MB/s) 6.95204 41 138309.2465 Rate (MB/s) 7.12475 42 141779.7997 Rate (MB/s) 7.30353 43 145653.3687 Rate (MB/s) 7.50307 44 149131.2087 Rate (MB/s) 7.68223 45 151611.6104 Rate (MB/s) 7.81 46 155554.6394 Rate (MB/s) 8.01312 47 159033.1938 Rate (MB/s) 8.19231 48 162216.5600 Rate (MB/s) 8.35629 49 165034.8116 Rate (MB/s) 8.50147 50 168001.4823 Rate (MB/s) 8.65429 51 170899.9045 Rate (MB/s) 8.8036 52 175687.8033 Rate (MB/s) 9.05024 53 178203.9203 Rate (MB/s) 9.17985 54 179973.3914 Rate (MB/s) 9.27101 55 182207.3495 Rate (MB/s) 9.38608 56 185712.9643 Rate (MB/s) 9.56667 57 188805.5696 Rate (MB/s) 9.72598 58 193360.9158 Rate (MB/s) 9.96064 59 198160.8016 Rate (MB/s) 10.2079 60 201297.0129 Rate (MB/s) 10.3695 61 203618.7672 Rate (MB/s) 10.4891 62 209599.2783 Rate (MB/s) 10.7971 63 211651.1587 Rate (MB/s) 10.9028 64 210254.5035 Rate (MB/s) 10.8309 65 218576.4938 Rate (MB/s) 11.2596 66 220280.0853 Rate (MB/s) 11.3473 67 221281.1867 Rate (MB/s) 11.3989 68 228941.1872 Rate (MB/s) 11.7935 69 232206.2708 Rate (MB/s) 11.9617 70 233569.5866 Rate (MB/s) 12.0319 71 238293.6355 Rate (MB/s) 12.2753 72 238987.0729 Rate (MB/s) 12.311 73 246013.4684 Rate (MB/s) 12.6729 74 248850.8942 Rate (MB/s) 12.8191 75 249355.6899 Rate (MB/s) 12.8451 76 252515.6110 Rate (MB/s) 13.0079 77 257489.4268 Rate (MB/s) 13.2641 78 260884.2771 Rate (MB/s) 13.439 79 264341.8661 Rate (MB/s) 13.6171 80 269329.1376 Rate (MB/s) 13.874 81 272286.4070 Rate (MB/s) 14.0263 82 273325.7822 Rate (MB/s) 14.0799 83 277334.6699 Rate (MB/s) 14.2864 84 280254.7286 Rate (MB/s) 14.4368 85 282219.8194 Rate (MB/s) 14.538 86 289039.2677 Rate (MB/s) 14.8893 87 291234.4715 Rate (MB/s) 15.0024 88 295941.1159 Rate (MB/s) 15.2449 89 298136.3163 Rate (MB/s) 15.358 90 302820.9080 Rate (MB/s) 15.5993 91 306387.5008 Rate (MB/s) 15.783 92 310127.0223 Rate (MB/s) 15.9756 93 310219.3643 Rate (MB/s) 15.9804 94 317089.5971 Rate (MB/s) 16.3343 95 315457.0938 Rate (MB/s) 16.2502 96 324068.8172 Rate (MB/s) 16.6938
