{cpu2001}root 105% ./mcc_omp_ev7_20021210 n, offset, ntimes 159340709,0,20 ---------------------------------------------- Double precision appears to have 16 digits of accuracy Assuming 8 bytes per DOUBLE PRECISION word ---------------------------------------------- Array size = 159340709 Offset = 0 The total memory requirement is 3647.02 MB You are running each test 20 times The *best* time for each test is used ---------------------------------------------------- Your clock granularity/precision appears to be 1000 microseconds The tests below will each take a time on the order of 41000 microseconds (= 41 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: 45203.0380 0.0567 0.0564 0.0575 Scale: 46102.1943 0.0558 0.0553 0.0565 Add: 51125.3612 0.0760 0.0748 0.0769 Triad: 50384.4139 0.0761 0.0759 0.0769 AvgBW: 48203.7518 Sum of a is = 1.324621938024298E+031 Sum of b is = 2.649243875269356E+030 Sum of c is = 3.532325167459415E+030