STREAM results for IBM Power 575 (4.7GHz, POWER6)

From: Ly Vu <lyvu@us.ibm.com>
Date: Mon Apr 07 2008 - 19:01:44 CDT

These are standard STREAM results on an IBM Power 575
with thirty-two 4.7 GHz cores. This is a POWER6 SMP machine.
Large pages were used in all cases.

Function Rate (MB/s) Avg time Min time Max time
Copy: 142708.1898 .1204 .1204 .1205
Scale: 142612.4358 .1205 .1205 .1205
Add: 159010.6786 .1624 .1621 .1628
Triad: 162844.0220 .1585 .1582 .1588

Here is the full output file:
--------------------------------------------------
 Environment variable MEMSUITE set to DETAILS
 Requesting LARGE pages
 Running TRIAD kernel
 Setting up for 32 chips
 Setting up for 32 threads
 Number of segments per array = 32
 Reading cpu binding list for page placement
 DATA binding list : 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25 26 27 28 29 30 31
 Beginning allocation of data segments....
GETSHRSEG: requesting large pages
GETSHRSEG ENTRY: shmgetflag -2147481216

 Moff = 75776
 Incremental Offset = 678
 504403158265495552 504403166855435560 504403175445375576
----------------------------------------------
 Double precision appears to have 16 digits of accuracy
 Assuming 8 bytes per DOUBLE PRECISION word
----------------------------------------------
 Array size = 1073666048
 The total memory requirement is 24574 MB
 You are running each test 5 times
 --
 The *best* time for each test is used
 *EXCLUDING* the first and last iterations
 ----------------------------------------------------
 Your clock granularity appears to be less than one microsecond
 Your clock granularity/precision appears to be 1 microseconds
 ----------------------------------------------------
Function Rate (MB/s) Avg time Min time Max time
Copy: 142708.1898 .1204 .1204 .1205
Scale: 142612.4358 .1205 .1205 .1205
Add: 159010.6786 .1624 .1621 .1628
Triad: 162844.0220 .1585 .1582 .1588
 ----------------------------------------------------
 Solution Validates!
 ----------------------------------------------------
Received on Mon Apr 07 21:45:36 2008

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