Asus A7M266 motherboard (AMD760 chipset), 1.2 GHz AMD Athlon (FSB266), 512 MB DDR SDRAM (2-2-2), Windows NT4/SP6, Intel Fortran 4.5, ifl -G6 ---------------------------------------------- Double precision appears to have 16 digits of accuracy Assuming 8 bytes per DOUBLE PRECISION word ---------------------------------------------- Array size = 18901234 Offset = 0 The total memory requirement is 432 MB You are running each test 10 times The *best* time for each test is used ---------------------------------------------------- Your clock granularity/precision appears to be 10000 microseconds The tests below will each take a time on the order of 511000 microseconds (= 51 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: 916.4235 0.3383 0.3300 0.3410 Scale: 630.0411 0.4807 0.4800 0.4810 Add: 986.1513 0.4952 0.4600 0.5210 Triad: 872.3646 0.5237 0.5200 0.5310 Sum of a is = 2.17988079415546D+019 Sum of b is = 4.35976158885375D+018 Sum of c is = 5.81301544855357D+018