------------------------------------------------------------- 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 = 16 Number of Threads counted = 16 ------------------------------------------------------------- Your clock granularity/precision appears to be 1 microseconds. Each test below will take on the order of 6841 microseconds. (= 6841 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: 57290.4 0.009506 0.009371 0.009757 Scale: 66890.4 0.008211 0.008026 0.008573 Add: 65196.5 0.012791 0.012352 0.023453 Triad: 64351.8 0.012753 0.012514 0.013659 ------------------------------------------------------------- Solution Validates: avg error less than 1.000000e-13 on all three arrays -------------------------------------------------------------