gistfile1.txt

$ time ./stream_haswell.bin
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STREAM version $Revision: 5.10 $
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This system uses 8 bytes per array element.
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Array size = 269000000 (elements), Offset = 0 (elements)
Memory per array = 2052.3 MiB (= 2.0 GiB).
Total memory required = 6156.9 MiB (= 6.0 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.
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Number of Threads requested = 8
Number of Threads counted = 8
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Your clock granularity/precision appears to be 1 microseconds.
Each test below will take on the order of 169420 microseconds.
   (= 169420 clock ticks)
Increase the size of the arrays if this shows that
you are not getting at least 20 clock ticks per test.
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WARNING -- The above is only a rough guideline.
For best results, please be sure you know the
precision of your system timer.
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Function    Best Rate MB/s  Avg time     Min time     Max time
Copy:           18343.9     0.235524     0.234628     0.248754
Scale:          18313.0     0.236159     0.235025     0.246510
Add:            20642.9     0.313888     0.312747     0.333817
Triad:          20619.1     0.314565     0.313107     0.333907
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Solution Validates: avg error less than 1.000000e-13 on all three arrays
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./stream_haswell.bin  872.29s user 3.48s system 786% cpu 1:51.28 total