# ./no_omp_10may n, offset, ntimes 2900755,0,10 ---------------------------------------------- Double precision appears to have 16 digits of accuracy Assuming 8 bytes per DOUBLE PRECISION word ---------------------------------------------- Array size = 2900755 Offset = 0 The total memory requirement is 66.39 MB You are running each test 10 times The *best* time for each test is used ---------------------------------------------------- Your clock granularity/precision appears to be 900 microseconds The tests below will each take a time on the order of 30200 microseconds (= 34 clock ticks) Increase the size of the arrays if this shows that you are not getting at least 20 clock ticks per test. ---------------------------------------------------- WARNING -- The above is only a rough guideline. For best results, please be sure you know the precision of your system timer. ---------------------------------------------------- Function Rate (MB/s) RMS time Min time Max time Copy: 1361.0581 0.0354 0.0341 0.0390 Scale: 1322.2815 0.0352 0.0351 0.0352 Add: 1397.9542 0.0504 0.0498 0.0508 Triad: 1426.6008 0.0495 0.0488 0.0499 Sum of a is = 3.345443007631971E+018 Sum of b is = 6.690886015308940E+017 Sum of c is = 8.921181354119566E+017