=== CPU cache information === 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/cpu10 Level 1 Cache: 32K (Data) CPU /sys/devices/system/cpu/cpu10 Level 1 Cache: 32K (Instruction) CPU /sys/devices/system/cpu/cpu10 Level 2 Cache: 256K (Unified) CPU /sys/devices/system/cpu/cpu10 Level 3 Cache: 15360K (Unified) CPU /sys/devices/system/cpu/cpu11 Level 1 Cache: 32K (Data) CPU /sys/devices/system/cpu/cpu11 Level 1 Cache: 32K (Instruction) CPU /sys/devices/system/cpu/cpu11 Level 2 Cache: 256K (Unified) CPU /sys/devices/system/cpu/cpu11 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) CPU /sys/devices/system/cpu/cpu6 Level 1 Cache: 32K (Data) CPU /sys/devices/system/cpu/cpu6 Level 1 Cache: 32K (Instruction) CPU /sys/devices/system/cpu/cpu6 Level 2 Cache: 256K (Unified) CPU /sys/devices/system/cpu/cpu6 Level 3 Cache: 15360K (Unified) CPU /sys/devices/system/cpu/cpu7 Level 1 Cache: 32K (Data) CPU /sys/devices/system/cpu/cpu7 Level 1 Cache: 32K (Instruction) CPU /sys/devices/system/cpu/cpu7 Level 2 Cache: 256K (Unified) CPU /sys/devices/system/cpu/cpu7 Level 3 Cache: 15360K (Unified) CPU /sys/devices/system/cpu/cpu8 Level 1 Cache: 32K (Data) CPU /sys/devices/system/cpu/cpu8 Level 1 Cache: 32K (Instruction) CPU /sys/devices/system/cpu/cpu8 Level 2 Cache: 256K (Unified) CPU /sys/devices/system/cpu/cpu8 Level 3 Cache: 15360K (Unified) CPU /sys/devices/system/cpu/cpu9 Level 1 Cache: 32K (Data) CPU /sys/devices/system/cpu/cpu9 Level 1 Cache: 32K (Instruction) CPU /sys/devices/system/cpu/cpu9 Level 2 Cache: 256K (Unified) CPU /sys/devices/system/cpu/cpu9 Level 3 Cache: 15360K (Unified) Total CPU system cache: 192282624 bytes Suggested minimum array elements needed: 87401192 Array elements used: 87401192 === CPU Core Summary === processor : 11 model name : Intel(R) Xeon(R) CPU E5-2620 0 @ 2.00GHz cpu MHz : 1999.946 siblings : 12 === Check and build stream === === Testing up to 12 cores === ------------------------------------------------------------- STREAM version $Revision: 5.9 $ ------------------------------------------------------------- This system uses 8 bytes per DOUBLE PRECISION word. ------------------------------------------------------------- Array size = 87401192, Offset = 0 Total memory required = 2000.5 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 87534 microseconds. (= 87534 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) Avg time Min time Max time Copy: 10611.6239 0.1319 0.1318 0.1320 Scale: 10975.4789 0.1275 0.1274 0.1277 Add: 11859.7763 0.1769 0.1769 0.1771 Triad: 12273.3535 0.1710 0.1709 0.1712 ------------------------------------------------------------- Solution Validates ------------------------------------------------------------- Number of Threads requested = 2 Function Rate (MB/s) Avg time Min time Max time Triad: 21378.2018 0.0983 0.0981 0.0985 Number of Threads requested = 3 Function Rate (MB/s) Avg time Min time Max time Triad: 24124.2561 0.0875 0.0870 0.0883 Number of Threads requested = 4 Function Rate (MB/s) Avg time Min time Max time Triad: 24631.0616 0.0855 0.0852 0.0858 Number of Threads requested = 5 Function Rate (MB/s) Avg time Min time Max time Triad: 24246.1186 0.0868 0.0865 0.0872 Number of Threads requested = 6 Function Rate (MB/s) Avg time Min time Max time Triad: 23878.2058 0.0880 0.0878 0.0884 Number of Threads requested = 7 Function Rate (MB/s) Avg time Min time Max time Triad: 22625.2297 0.0952 0.0927 0.0990 Number of Threads requested = 8 Function Rate (MB/s) Avg time Min time Max time Triad: 23126.5826 0.0982 0.0907 0.1056 Number of Threads requested = 9 Function Rate (MB/s) Avg time Min time Max time Triad: 23425.1605 0.0950 0.0895 0.1040 Number of Threads requested = 10 Function Rate (MB/s) Avg time Min time Max time Triad: 22919.8752 0.0937 0.0915 0.0954 Number of Threads requested = 11 Function Rate (MB/s) Avg time Min time Max time Triad: 23267.4353 0.0947 0.0902 0.1027 Number of Threads requested = 12 Function Rate (MB/s) Avg time Min time Max time Triad: 23229.3473 0.0905 0.0903 0.0907