=== CPU cache information === [288/809] CPU /sys/devices/system/cpu/cpu0 Level 1 Cache: 32K (Data) CPU /sys/devices/system/cpu/cpu0 Level 1 Cache: 32K (Instruction) CPU /sys/devices/system/cpu/cpu0 Level 2 Cache: 256K (Unified) CPU /sys/devices/system/cpu/cpu0 Level 3 Cache: 15360K (Unified) CPU /sys/devices/system/cpu/cpu1 Level 1 Cache: 32K (Data) CPU /sys/devices/system/cpu/cpu1 Level 1 Cache: 32K (Instruction) CPU /sys/devices/system/cpu/cpu1 Level 2 Cache: 256K (Unified) CPU /sys/devices/system/cpu/cpu1 Level 3 Cache: 15360K (Unified) CPU /sys/devices/system/cpu/cpu2 Level 1 Cache: 32K (Data) CPU /sys/devices/system/cpu/cpu2 Level 1 Cache: 32K (Instruction) CPU /sys/devices/system/cpu/cpu2 Level 2 Cache: 256K (Unified) CPU /sys/devices/system/cpu/cpu2 Level 3 Cache: 15360K (Unified) CPU /sys/devices/system/cpu/cpu3 Level 1 Cache: 32K (Data) CPU /sys/devices/system/cpu/cpu3 Level 1 Cache: 32K (Instruction) CPU /sys/devices/system/cpu/cpu3 Level 2 Cache: 256K (Unified) CPU /sys/devices/system/cpu/cpu3 Level 3 Cache: 15360K (Unified) CPU /sys/devices/system/cpu/cpu4 Level 1 Cache: 32K (Data) CPU /sys/devices/system/cpu/cpu4 Level 1 Cache: 32K (Instruction) CPU /sys/devices/system/cpu/cpu4 Level 2 Cache: 256K (Unified) CPU /sys/devices/system/cpu/cpu4 Level 3 Cache: 15360K (Unified) CPU /sys/devices/system/cpu/cpu5 Level 1 Cache: 32K (Data) CPU /sys/devices/system/cpu/cpu5 Level 1 Cache: 32K (Instruction) CPU /sys/devices/system/cpu/cpu5 Level 2 Cache: 256K (Unified) CPU /sys/devices/system/cpu/cpu5 Level 3 Cache: 15360K (Unified) Total CPU system cache: 96141312 bytes Suggested minimum array elements needed: 43700596 Array elements used: 43700596 === CPU Core Summary === processor : 5 model name : Intel(R) Xeon(R) CPU E5-2620 0 @ 2.00GHz cpu MHz : 1999.842 siblings : 6 === Check and build stream === === Testing up to 6 cores === ------------------------------------------------------------- STREAM version $Revision: 5.9 $ ------------------------------------------------------------- This system uses 8 bytes per DOUBLE PRECISION word. ------------------------------------------------------------- Array size = 43700596, Offset = 0 Total memory required = 1000.2 MB. Each test is run 10 times, but only the *best* time for each is used. ------------------------------------------------------------- Number of Threads requested = 1 ------------------------------------------------------------- Printing one line per active thread.... ------------------------------------------------------------- Your clock granularity/precision appears to be 1 microseconds. Each test below will take on the order of 42747 microseconds. (= 42747 clock ticks) Increase the size of the arrays if this shows that 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) Avg time Min time Max time Copy: 11189.6576 0.0625 0.0625 0.0626 Scale: 11226.3233 0.0623 0.0623 0.0624 Add: 12419.6669 0.0845 0.0844 0.0847 Triad: 12282.1773 0.0855 0.0854 0.0856 ------------------------------------------------------------- Solution Validates ------------------------------------------------------------- Number of Threads requested = 2 Function Rate (MB/s) Avg time Min time Max time Triad: 21066.0085 0.0500 0.0498 0.0502 Number of Threads requested = 3 Function Rate (MB/s) Avg time Min time Max time Triad: 23206.8603 0.0453 0.0452 0.0455 Number of Threads requested = 4 Function Rate (MB/s) Avg time Min time Max time Triad: 23555.5498 0.0446 0.0445 0.0446 Number of Threads requested = 5 Function Rate (MB/s) Avg time Min time Max time Triad: 23424.7239 0.0448 0.0448 0.0449 Number of Threads requested = 6 Function Rate (MB/s) Avg time Min time Max time Triad: 23298.1809 0.0451 0.0450 0.0452