b_eff = 2662.468 MB/s = 1331.234 * 2 PEs with 256 MB/PE on SUPER-UX sx5 9.2 k SX-5/8B SECTION-HEAD-BEGIN b_eff.c, Revision 3.2 from Nov. 07, 1999 MEMORY_PER_PROCESSOR = 256 MBytes [1M = 1024*1024] 1-dim-paterns: size = 2 1-dim-paterns: size = 2 2-dim-paterns: size = 2 * 1 3-dim-paterns: size = 2 * 1 * 1 Used message lengths (and used loop length for each message lengths): msglng= 1 (300), 2 (300), 4 (300), 8 (300), 16 (300), 32 (300), 64 (300), 128 (300), 256 (300), 512 (300), 1024 (300), 2048 (300), 4096 (300), 8933 (234), 19484 (107), 42495 (49), 92682 (22), 202141 (10), 440872 (4), 961548 (2), 2097152 (1), SECTION-HEAD-END SECTION-LOOP-BEGIN measurment loop: elapsed time = 16.969 sec sum of max elapsed time per entries above = 16.881 sec difference = 0.088 sec = 0.5% The difference is less than 5 % SECTION-LOOP-END SECTION-PATTERN-BEGIN Pattern parameters: p00 ring-1*2fix => 1 sendrecv_calls with 2 messages, i.e. 4.2 msgs/used node, all nodes are used p01 ring-1*2fix => 1 sendrecv_calls with 2 messages, i.e. 4.2 msgs/used node, all nodes are used p02 ring-1*2fix => 1 sendrecv_calls with 2 messages, i.e. 4.2 msgs/used node, all nodes are used p03 ring-1*2fix => 1 sendrecv_calls with 2 messages, i.e. 4.2 msgs/used node, all nodes are used p04 ring-1*2fix => 1 sendrecv_calls with 2 messages, i.e. 4.2 msgs/used node, all nodes are used p05 ring-1*2fix => 1 sendrecv_calls with 2 messages, i.e. 4.2 msgs/used node, all nodes are used p06 random-cyc-1dim => 1 sendrecv_calls with 2 messages, i.e. 4.2 msgs/used node, all nodes are used p07 random-cyc-1dim => 1 sendrecv_calls with 2 messages, i.e. 4.2 msgs/used node, all nodes are used p08 random-cyc-1dim => 1 sendrecv_calls with 2 messages, i.e. 4.2 msgs/used node, all nodes are used p09 random-cyc-1dim => 1 sendrecv_calls with 2 messages, i.e. 4.2 msgs/used node, all nodes are used p10 random-cyc-1dim => 1 sendrecv_calls with 2 messages, i.e. 4.2 msgs/used node, all nodes are used p11 random-cyc-1dim => 1 sendrecv_calls with 2 messages, i.e. 4.2 msgs/used node, all nodes are used p12 random-cyc-1dim => 1 sendrecv_calls with 2 messages, i.e. 4.2 msgs/used node, all nodes are used p13 random-cyc-1dim => 1 sendrecv_calls with 2 messages, i.e. 4.2 msgs/used node, all nodes are used p14 random-cyc-1dim => 1 sendrecv_calls with 2 messages, i.e. 4.2 msgs/used node, all nodes are used p15 random-cyc-1dim => 1 sendrecv_calls with 2 messages, i.e. 4.2 msgs/used node, all nodes are used p16 worst-cyc-1dim => 1 sendrecv_calls with 2 messages, i.e. 4.2 msgs/used node, all nodes are used p17 best bi-section => 2 sendrecv_calls with 2 messages, i.e. 4.2 msgs/used node, all nodes are used p18 worst bi-section => 2 sendrecv_calls with 2 messages, i.e. 4.2 msgs/used node, all nodes are used p19 acyclic-1dim-all => 2 sendrecv_calls with 2 messages, i.e. 4.2 msgs/used node, all nodes are used p20 acyclic-2dim-all => 2 sendrecv_calls with 2 messages, i.e. 4.2 msgs/used node, all nodes are used p21 acyclic-3dim-all => 2 sendrecv_calls with 2 messages, i.e. 4.2 msgs/used node, all nodes are used p22 cyclic-1dim-all => 1 sendrecv_calls with 2 messages, i.e. 4.2 msgs/used node, all nodes are used p23 cyclic-2dim-all => 1 sendrecv_calls with 2 messages, i.e. 4.2 msgs/used node, all nodes are used p24 cyclic-3dim-all => 1 sendrecv_calls with 2 messages, i.e. 4.2 msgs/used node, all nodes are used SECTION-PATTERN-END Printing accumulated bandwidth / number of processes = bandwidth per process (in MBytes/sec = 1e6 Bytes/sec) Additionally the accumulated value processes is printed in the last column Only the cyclic and random patterns are used to compute b_eff (except p00), the other patterns are only as information. SECTION-BY-METHODS-BEGIN 2nd analysis path, only as information, last row: for all mthd: logavg_pat ( avg_L ( max_rep ( b(L) ) ) ) || logavg_pat ( max_mthd ( avg_L ( max_rep ( b(L) ) ) ) ) pattern / methods: Sndrcv Alltoal non-blk -> best method -> accumulated p00 ring-1*2fix : 1330.593 1166.811 -> 1330.593 -> 2661.187 MByte/s p01 ring-1*2fix : 1329.356 1167.867 -> 1329.356 -> 2658.712 MByte/s p02 ring-1*2fix : 1330.439 1169.812 -> 1330.439 -> 2660.878 MByte/s p03 ring-1*2fix : 1329.052 1168.497 -> 1329.052 -> 2658.104 MByte/s p04 ring-1*2fix : 1329.674 1166.434 -> 1329.674 -> 2659.347 MByte/s p05 ring-1*2fix : 1331.407 1166.717 -> 1331.407 -> 2662.815 MByte/s p06 random-cyc-1dim : 1333.530 1165.954 -> 1333.530 -> 2667.060 MByte/s p07 random-cyc-1dim : 1333.264 1164.312 -> 1333.264 -> 2666.528 MByte/s p08 random-cyc-1dim : 1331.852 1169.735 -> 1331.852 -> 2663.705 MByte/s p09 random-cyc-1dim : 1332.712 1166.264 -> 1332.712 -> 2665.424 MByte/s p10 random-cyc-1dim : 1330.426 1167.501 -> 1330.426 -> 2660.852 MByte/s p11 random-cyc-1dim : 1329.929 1155.364 -> 1329.929 -> 2659.858 MByte/s p12 random-cyc-1dim : 1332.612 1153.437 -> 1332.612 -> 2665.223 MByte/s p13 random-cyc-1dim : 1332.984 1165.423 -> 1332.984 -> 2665.968 MByte/s p14 random-cyc-1dim : 1335.426 1162.687 -> 1335.426 -> 2670.851 MByte/s p15 random-cyc-1dim : 1328.885 1152.409 -> 1328.885 -> 2657.771 MByte/s -- additional patterns that are not used to compute b_eff: p16 worst-cyc-1dim : 1333.185 1164.406 -> 1333.185 -> 2666.369 MByte/s p17 best bi-section : 857.055 1159.639 -> 1159.639 -> 2319.279 MByte/s p18 worst bi-section : 856.129 1160.940 -> 1160.940 -> 2321.881 MByte/s p19 acyclic-1dim-all : 856.569 1150.970 -> 1150.970 -> 2301.939 MByte/s p20 acyclic-2dim-all : 856.839 1157.529 -> 1157.529 -> 2315.058 MByte/s p21 acyclic-3dim-all : 856.153 1144.409 -> 1144.409 -> 2288.818 MByte/s p22 cyclic-1dim-all : 1334.993 1168.654 -> 1334.993 -> 2669.986 MByte/s p23 cyclic-2dim-all : 1331.945 1169.281 -> 1331.945 -> 2663.890 MByte/s p24 cyclic-3dim-all : 1328.719 1168.073 -> 1328.719 -> 2657.438 MByte/s log_avg of all rings : 1330.087 1167.689 || 1330.087 -> 2660.173 MByte/s log_avg of all random : 1332.161 1162.293 || 1332.161 -> 2664.321 MByte/s log_avg(ring,random) : 1331.123 1164.988 ||(1331.123 -> 2662.247)MByte/s SECTION-BY-METHODS-END SECTION-BY-REPETITIONS-BEGIN 3rd analysis path, only as information, last row: for all rep.:logavg_pat ( avg_L ( max_mthd ( b(L) ) ) ) || logavg_pat ( max_rep ( avg_L ( max_mthd ( b(L) ) ) ) ) pattern / repetition: rep.0 rep.1 rep.2 -> best repetition -> accumulated p00 ring-1*2fix : 1328.860 1327.435 1328.945 -> 1328.945 -> 2657.891 MByte/s p01 ring-1*2fix : 1327.486 1328.774 1327.440 -> 1328.774 -> 2657.548 MByte/s p02 ring-1*2fix : 1327.719 1328.840 1329.463 -> 1329.463 -> 2658.927 MByte/s p03 ring-1*2fix : 1328.445 1328.514 1327.713 -> 1328.514 -> 2657.028 MByte/s p04 ring-1*2fix : 1327.426 1328.321 1327.973 -> 1328.321 -> 2656.642 MByte/s p05 ring-1*2fix : 1328.488 1330.233 1327.041 -> 1330.233 -> 2660.466 MByte/s p06 random-cyc-1dim : 1330.689 1332.216 1332.241 -> 1332.241 -> 2664.483 MByte/s p07 random-cyc-1dim : 1330.788 1331.332 1330.887 -> 1331.332 -> 2662.663 MByte/s p08 random-cyc-1dim : 1329.557 1331.179 1331.296 -> 1331.296 -> 2662.592 MByte/s p09 random-cyc-1dim : 1331.280 1332.655 1331.058 -> 1332.655 -> 2665.309 MByte/s p10 random-cyc-1dim : 1327.447 1329.644 1329.435 -> 1329.644 -> 2659.288 MByte/s p11 random-cyc-1dim : 1328.638 1329.019 1329.285 -> 1329.285 -> 2658.570 MByte/s p12 random-cyc-1dim : 1330.417 1329.104 1331.917 -> 1331.917 -> 2663.834 MByte/s p13 random-cyc-1dim : 1331.761 1331.996 1328.342 -> 1331.996 -> 2663.991 MByte/s p14 random-cyc-1dim : 1327.757 1335.354 1327.474 -> 1335.354 -> 2670.709 MByte/s p15 random-cyc-1dim : 1327.743 1325.715 1328.445 -> 1328.445 -> 2656.890 MByte/s -- additional patterns that are not used to compute b_eff: p16 worst-cyc-1dim : 1329.014 1331.289 1332.233 -> 1332.233 -> 2664.465 MByte/s p17 best bi-section : 1171.745 1172.744 1179.912 -> 1179.912 -> 2359.824 MByte/s p18 worst bi-section : 1160.541 1160.556 1185.659 -> 1185.659 -> 2371.318 MByte/s p19 acyclic-1dim-all : 1165.813 1158.138 1173.400 -> 1173.400 -> 2346.801 MByte/s p20 acyclic-2dim-all : 1160.692 1181.684 1158.190 -> 1181.684 -> 2363.368 MByte/s p21 acyclic-3dim-all : 1161.870 1162.297 1154.692 -> 1162.297 -> 2324.593 MByte/s p22 cyclic-1dim-all : 1333.925 1333.869 1334.004 -> 1334.004 -> 2668.008 MByte/s p23 cyclic-2dim-all : 1329.379 1330.359 1330.887 -> 1330.887 -> 2661.775 MByte/s p24 cyclic-3dim-all : 1326.205 1326.559 1325.793 -> 1326.559 -> 2653.117 MByte/s log_avg of all rings : 1328.071 1328.686 1328.096 || 1329.042 -> 2658.083 MByte/s log_avg of all random : 1329.607 1330.819 1330.037 || 1331.415 -> 2662.830 MByte/s log_avg(ring,random) : 1328.839 1329.752 1329.066 ||(1330.228 -> 2660.456)MByte/s SECTION-BY-REPETITIONS-END SECTION-BY-MTHD-MSGLNG-BEGIN 4th analysis path, only as information, last 3 rows: for all methods and some msglng L: logavg_pat ( max_rep ( b(L) ) ) for all methods: logavg_pat ( avg_L ( max_rep ( b(L) ) ) ) pattern & method / msg: 1 16 256 4096 92682 2097152 -> average -> accumulated p00 ring-1*2fix p00 method 0 : 0.107 1.644 25.365 314.659 2226.687 8741.777 -> 1330.593 -> 2661.187 MByte/s p00 method 1 : 0.018 0.504 7.941 125.035 1320.797 8316.355 -> 1166.811 -> 2333.621 MByte/s p01 ring-1*2fix p01 method 0 : 0.107 1.643 25.356 310.864 2225.929 8739.589 -> 1329.356 -> 2658.712 MByte/s p01 method 1 : 0.018 0.504 7.943 124.998 1327.898 8327.189 -> 1167.867 -> 2335.734 MByte/s p02 ring-1*2fix p02 method 0 : 0.104 1.634 25.329 310.783 2227.796 8748.778 -> 1330.439 -> 2660.878 MByte/s p02 method 1 : 0.018 0.502 7.947 125.114 1318.556 8334.597 -> 1169.812 -> 2339.625 MByte/s p03 ring-1*2fix p03 method 0 : 0.104 1.642 25.349 310.655 2224.782 8747.758 -> 1329.052 -> 2658.104 MByte/s p03 method 1 : 0.018 0.504 7.939 125.039 1318.754 8319.524 -> 1168.497 -> 2336.993 MByte/s p04 ring-1*2fix p04 method 0 : 0.106 1.642 25.360 310.831 2226.804 8759.890 -> 1329.674 -> 2659.347 MByte/s p04 method 1 : 0.018 0.504 7.941 125.051 1320.393 8317.146 -> 1166.434 -> 2332.868 MByte/s p05 ring-1*2fix p05 method 0 : 0.106 1.641 25.362 310.765 2225.578 8770.586 -> 1331.407 -> 2662.815 MByte/s p05 method 1 : 0.018 0.503 7.944 124.986 1325.406 8324.014 -> 1166.717 -> 2333.435 MByte/s p06 random-cyc-1dim p06 method 0 : 0.107 1.640 25.346 310.805 2245.026 8764.284 -> 1333.530 -> 2667.060 MByte/s p06 method 1 : 0.018 0.504 7.941 123.878 1309.478 8250.655 -> 1165.954 -> 2331.907 MByte/s p07 random-cyc-1dim p07 method 0 : 0.106 1.641 25.345 310.766 2245.817 8794.272 -> 1333.264 -> 2666.528 MByte/s p07 method 1 : 0.018 0.505 7.940 125.060 1325.199 8328.775 -> 1164.312 -> 2328.623 MByte/s p08 random-cyc-1dim p08 method 0 : 0.107 1.641 25.347 310.839 2245.777 8764.574 -> 1331.852 -> 2663.705 MByte/s p08 method 1 : 0.018 0.504 7.946 124.065 1320.263 8310.294 -> 1169.735 -> 2339.470 MByte/s p09 random-cyc-1dim p09 method 0 : 0.104 1.633 25.329 310.864 2245.302 8759.153 -> 1332.712 -> 2665.424 MByte/s p09 method 1 : 0.018 0.503 7.940 123.835 1321.605 8322.299 -> 1166.264 -> 2332.528 MByte/s p10 random-cyc-1dim p10 method 0 : 0.106 1.643 25.327 310.791 2227.076 8752.429 -> 1330.426 -> 2660.852 MByte/s p10 method 1 : 0.018 0.504 7.930 123.925 1320.345 8303.709 -> 1167.501 -> 2335.002 MByte/s p11 random-cyc-1dim p11 method 0 : 0.106 1.643 25.331 310.805 2247.124 8741.633 -> 1329.929 -> 2659.858 MByte/s p11 method 1 : 0.018 0.488 7.704 120.282 1310.838 8220.385 -> 1155.364 -> 2310.728 MByte/s p12 random-cyc-1dim p12 method 0 : 0.107 1.641 25.343 310.875 2243.366 8755.496 -> 1332.612 -> 2665.223 MByte/s p12 method 1 : 0.018 0.503 7.939 123.529 1330.394 8028.301 -> 1153.437 -> 2306.873 MByte/s p13 random-cyc-1dim p13 method 0 : 0.107 1.642 25.330 310.878 2245.144 8788.373 -> 1332.984 -> 2665.968 MByte/s p13 method 1 : 0.018 0.504 7.937 125.006 1324.056 8257.153 -> 1165.423 -> 2330.846 MByte/s p14 random-cyc-1dim p14 method 0 : 0.105 1.643 25.357 310.758 2246.153 8799.879 -> 1335.426 -> 2670.851 MByte/s p14 method 1 : 0.018 0.504 7.938 124.995 1322.188 8322.426 -> 1162.687 -> 2325.374 MByte/s p15 random-cyc-1dim p15 method 0 : 0.107 1.641 25.361 310.823 2227.057 8752.867 -> 1328.885 -> 2657.771 MByte/s p15 method 1 : 0.018 0.489 7.706 121.179 1308.927 8278.535 -> 1152.409 -> 2304.818 MByte/s -- additional patterns that are not used to compute b_eff: p16 worst-cyc-1dim p16 method 0 : 0.105 1.631 25.340 310.956 2242.931 8768.238 -> 1333.185 -> 2666.369 MByte/s p16 method 1 : 0.018 0.504 7.943 125.006 1323.698 8260.795 -> 1164.406 -> 2328.811 MByte/s p17 best bi-section p17 method 0 : 0.083 1.262 19.127 224.616 1306.337 6047.083 -> 857.055 -> 1714.109 MByte/s p17 method 1 : 0.018 0.499 7.832 123.296 1324.703 8232.779 -> 1159.639 -> 2319.279 MByte/s p18 worst bi-section p18 method 0 : 0.084 1.261 19.070 224.824 1305.695 6039.697 -> 856.129 -> 1712.257 MByte/s p18 method 1 : 0.018 0.499 7.834 123.134 1318.931 8188.415 -> 1160.940 -> 2321.881 MByte/s p19 acyclic-1dim-all p19 method 0 : 0.083 1.263 19.072 224.698 1305.621 6038.585 -> 856.569 -> 1713.138 MByte/s p19 method 1 : 0.018 0.500 7.838 123.100 1310.960 8119.561 -> 1150.970 -> 2301.939 MByte/s p20 acyclic-2dim-all p20 method 0 : 0.083 1.260 19.135 224.594 1305.634 6049.593 -> 856.839 -> 1713.678 MByte/s p20 method 1 : 0.018 0.500 7.833 123.142 1316.431 8163.302 -> 1157.529 -> 2315.058 MByte/s p21 acyclic-3dim-all p21 method 0 : 0.084 1.263 19.223 224.455 1302.079 6042.343 -> 856.153 -> 1712.307 MByte/s p21 method 1 : 0.018 0.499 7.838 123.155 1311.439 7979.666 -> 1144.409 -> 2288.818 MByte/s p22 cyclic-1dim-all p22 method 0 : 0.107 1.643 25.347 310.644 2245.184 8792.796 -> 1334.993 -> 2669.986 MByte/s p22 method 1 : 0.018 0.505 7.938 124.845 1314.414 8321.634 -> 1168.654 -> 2337.308 MByte/s p23 cyclic-2dim-all p23 method 0 : 0.107 1.641 25.372 310.782 2244.709 8757.548 -> 1331.945 -> 2663.890 MByte/s p23 method 1 : 0.018 0.504 7.946 125.107 1335.965 8328.112 -> 1169.281 -> 2338.563 MByte/s p24 cyclic-3dim-all p24 method 0 : 0.106 1.641 25.362 310.766 2225.793 8735.804 -> 1328.719 -> 2657.438 MByte/s p24 method 1 : 0.018 0.503 7.945 125.023 1333.561 8323.222 -> 1168.073 -> 2336.146 MByte/s log_avg of all rings - ring, method 0 : 0.106 1.641 25.353 311.423 2226.263 8751.390 || 1330.087 -> 2660.173 MByte/s - ring, method 1 : 0.018 0.504 7.942 125.037 1321.963 8323.135 || 1167.689 -> 2335.378 MByte/s log_avg of all random - random, method 0 : 0.106 1.641 25.342 310.820 2241.772 8767.276 || 1332.161 -> 2664.321 MByte/s - random, method 1 : 0.018 0.501 7.892 123.566 1319.311 8261.808 || 1162.293 -> 2324.587 MByte/s log_avg(ring,random) - average, method 0 : 0.106 1.641 25.347 311.121 2234.004 8759.329 || 1331.123 -> 2662.247 MByte/s - average, method 1 : 0.018 0.502 7.917 124.299 1320.636 8292.415 || 1164.988 -> 2329.976 MByte/s SECTION-BY-MTHD-MSGLNG-END SECTION-BY-MSGLNG-BEGIN 5th analysis path only as information: logavg_pat ( max_mthd ( max_rep ( b(L) ) ) ) and for all methods: logavg_pat ( max_rep ( b(L) ) ) msg length|accumulated| effective bandwidth per process: msg length| effective| average rings random methd_1 methd_2 methd_3 | bandwidth| crt,rnd only only Sendrcv Alltoall non-blk 1 0.212 0.106 0.106 0.106 0.106 0.018 2 0.420 0.210 0.210 0.209 0.210 0.036 4 0.815 0.407 0.407 0.407 0.407 0.126 8 1.639 0.820 0.820 0.819 0.820 0.251 16 3.282 1.641 1.641 1.641 1.641 0.502 32 6.518 3.259 3.259 3.259 3.259 1.005 64 12.923 6.462 6.461 6.462 6.462 1.997 128 25.376 12.688 12.689 12.686 12.688 3.949 256 50.695 25.347 25.353 25.342 25.347 7.917 512 101.400 50.700 50.725 50.675 50.700 15.789 1024 195.785 97.892 97.871 97.913 97.892 31.316 2048 319.203 159.602 159.820 159.384 159.602 62.533 4096 622.243 311.121 311.423 310.820 311.121 124.299 8933 536.448 268.224 267.165 269.287 268.224 156.286 19484 2369.665 1184.832 1184.939 1184.726 1184.832 539.274 42495 2317.171 1158.585 1154.359 1162.827 1158.585 647.598 92682 4468.007 2234.004 2226.263 2241.772 2234.004 1320.636 202141 5141.902 2570.951 2566.870 2575.038 2570.951 2506.298 440872 12028.131 6014.066 6016.604 6011.528 6014.066 5704.746 961548 10191.207 5095.604 5093.422 5097.786 5093.288 5047.321 2097152 17518.658 8759.329 8751.390 8767.276 8759.329 8292.415 SECTION-BY-MSGLNG-END SECTION-BY-PATTERN-MSGLNG-BEGIN official (1st) analysis path -- see last column: (only columns of some message lengths are printed) logavg_pat ( avg_L ( max_mthd ( max_rep ( b(L) ) ) ) ) pattern / msg-length: 1 16 256 4096 92682 2097152 -> average -> accumulated p00 ring-1*2fix : 0.107 1.644 25.365 314.659 2226.687 8741.777 -> 1330.593 -> 2661.187 MByte/s p01 ring-1*2fix : 0.107 1.643 25.356 310.864 2225.929 8739.589 -> 1329.356 -> 2658.712 MByte/s p02 ring-1*2fix : 0.104 1.634 25.329 310.783 2227.796 8748.778 -> 1330.439 -> 2660.878 MByte/s p03 ring-1*2fix : 0.104 1.642 25.349 310.655 2224.782 8747.758 -> 1329.052 -> 2658.104 MByte/s p04 ring-1*2fix : 0.106 1.642 25.360 310.831 2226.804 8759.890 -> 1329.674 -> 2659.347 MByte/s p05 ring-1*2fix : 0.106 1.641 25.362 310.765 2225.578 8770.586 -> 1331.407 -> 2662.815 MByte/s p06 random-cyc-1dim : 0.107 1.640 25.346 310.805 2245.026 8764.284 -> 1333.752 -> 2667.504 MByte/s p07 random-cyc-1dim : 0.106 1.641 25.345 310.766 2245.817 8794.272 -> 1333.264 -> 2666.528 MByte/s p08 random-cyc-1dim : 0.107 1.641 25.347 310.839 2245.777 8764.574 -> 1333.845 -> 2667.691 MByte/s p09 random-cyc-1dim : 0.104 1.633 25.329 310.864 2245.302 8759.153 -> 1332.712 -> 2665.424 MByte/s p10 random-cyc-1dim : 0.106 1.643 25.327 310.791 2227.076 8752.429 -> 1330.426 -> 2660.852 MByte/s p11 random-cyc-1dim : 0.106 1.643 25.331 310.805 2247.124 8741.633 -> 1329.929 -> 2659.858 MByte/s p12 random-cyc-1dim : 0.107 1.641 25.343 310.875 2243.366 8755.496 -> 1332.612 -> 2665.223 MByte/s p13 random-cyc-1dim : 0.107 1.642 25.330 310.878 2245.144 8788.373 -> 1332.984 -> 2665.968 MByte/s p14 random-cyc-1dim : 0.105 1.643 25.357 310.758 2246.153 8799.879 -> 1335.426 -> 2670.851 MByte/s p15 random-cyc-1dim : 0.107 1.641 25.361 310.823 2227.057 8752.867 -> 1328.885 -> 2657.771 MByte/s -- additional patterns that are not used to compute b_eff: p16 worst-cyc-1dim : 0.105 1.631 25.340 310.956 2242.931 8768.238 -> 1333.185 -> 2666.369 MByte/s p17 best bi-section : 0.083 1.262 19.127 224.616 1324.703 8232.779 -> 1185.915 -> 2371.830 MByte/s p18 worst bi-section : 0.084 1.261 19.070 224.824 1318.931 8188.415 -> 1187.150 -> 2374.300 MByte/s p19 acyclic-1dim-all : 0.083 1.263 19.072 224.698 1310.960 8119.561 -> 1177.343 -> 2354.686 MByte/s p20 acyclic-2dim-all : 0.083 1.260 19.135 224.594 1316.431 8163.302 -> 1183.780 -> 2367.559 MByte/s p21 acyclic-3dim-all : 0.084 1.263 19.223 224.455 1311.439 7979.666 -> 1170.581 -> 2341.161 MByte/s p22 cyclic-1dim-all : 0.107 1.643 25.347 310.644 2245.184 8792.796 -> 1334.993 -> 2669.986 MByte/s p23 cyclic-2dim-all : 0.107 1.641 25.372 310.782 2244.709 8757.548 -> 1331.945 -> 2663.890 MByte/s p24 cyclic-3dim-all : 0.106 1.641 25.362 310.766 2225.793 8735.804 -> 1328.719 -> 2657.438 MByte/s log_avg of all rings : 0.106 1.641 25.353 311.423 2226.263 8751.390 || 1330.087 -> 2660.173 MByte/s log_avg of all random : 0.106 1.641 25.342 310.820 2241.772 8767.276 || 1332.382 -> 2664.764 MByte/s log_avg(ring,random) : 0.106 1.641 25.347 311.121 2234.004 8759.329 || 1331.234 -> 2662.468 MByte/s SECTION-BY-PATTERN-MSGLNG-END SECTION-BEFF-BEGIN The effective bandwidth is b_eff = 2662.468 MByte/s on 2 processes ( = 1331.234 MByte/s * 2 processes) system parameters : 2 nodes, 256 MB/node system name: SUPER-UX hostname : sx5 OS release : 9.2 OS version : k machine : SX-5/8B SECTION-BEFF-END b_eff = 2662.468 MB/s = 1331.234 * 2 PEs with 256 MB/PE on SUPER-UX sx5 9.2 k SX-5/8B