{cpu2001}root 119% ./no_omp_ev7_20021211 n, offset, ntimes 11922486,0,20 ---------------------------------------------- Double precision appears to have 16 digits of accuracy Assuming 8 bytes per DOUBLE PRECISION word ---------------------------------------------- Array size = 11922486 Offset = 0 The total memory requirement is 272.88 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 22600 microseconds (= 23 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: 5815.8468 0.0339 0.0328 0.0349 Scale: 5815.8468 0.0333 0.0328 0.0339 Add: 6488.4278 0.0451 0.0441 0.0462 Triad: 6344.5602 0.0456 0.0451 0.0471 AvgBW: 6116.1704 Sum of a is = 7.929065364271006E+030 Sum of b is = 1.585813072766170E+030 Sum of c is = 2.114417430467001E+030