------------------------------------------------------------- STREAM version $Revision: 5.10 $ ------------------------------------------------------------- This system uses 8 bytes per array element. ------------------------------------------------------------- Array size = 33554432 (elements), Offset = 0 (elements) Memory per array = 256.0 MiB (= 0.2 GiB). Total memory required = 768.0 MiB (= 0.8 GiB). Each kernel will be executed 100 times. The *best* time for each kernel (excluding the first iteration) will be used to compute the reported bandwidth. ------------------------------------------------------------- Number of Threads requested = 24 Number of Threads counted = 24 ------------------------------------------------------------- Your clock granularity/precision appears to be 2 microseconds. Each test below will take on the order of 7369 microseconds. (= 3684 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 Best Rate MB/s Avg time Min time Max time Copy: 57739.9 0.009647 0.009298 0.010455 Scale: 74390.5 0.008626 0.007217 0.010923 Add: 83859.7 0.010991 0.009603 0.013830 Triad: 82738.1 0.011216 0.009733 0.015579 ------------------------------------------------------------- Solution Validates: avg error less than 1.000000e-13 on all three arrays -------------------------------------------------------------