From: Ly Vu (lyvu@us.ibm.com)
Date: Mon Oct 03 2005 - 14:03:30 CDT
These are standard STREAM results on an IBM System p5 550Q
with eight 1.5 GHz cpus. This is a POWER5+ SMP machine.
Large pages were used in all cases.
Function Rate (MB/s) Avg time Min time Max time
Copy: 15717.9163 .0682 .0682 .0682
Scale: 15282.5470 .0702 .0701 .0702
Add: 16917.2731 .0950 .0950 .0951
Triad: 17330.8483 .0928 .0928 .0928
Here is the full output file:
-----------------------------
Requesting Large Pages
Setting up for 8 CPUs per module
Number of segments per array = 2
CPU binding list : 0 8
Shared Segment Pointer = 504403158265495552
Shared Segment Pointer = 504403158802366464
Shared Segment Pointer = 504403159339237376
Segment Size (B) = 268435456 (MB = 256 )
Array Size (B) = 536870912 (MB = 512 )
Array Size (DW) = 67108864
Num_threads = 16
Num_threads = 16
Num_threads = 16
Num_threads = 16
Num_threads = 16
Num_threads = 16
Num_threads = 16
Num_threads = 16
Num_threads = 16
Num_threads = 16
Num_threads = 16
Num_threads = 16
Num_threads = 16
Num_threads = 16
Num_threads = 16
Num_threads = 16
rebind: num_parthds is 16
Starting Initialization
Done With Initialization
a(1) 1.00000000000000000
b(M) 1.00000000000000000
c(M) 1.00000000000000000
Incremental Offset = 512
----------------------------------------------
Double precision appears to have 16 digits of accuracy
Assuming 8 bytes per DOUBLE PRECISION word
----------------------------------------------
Array size = 66980864
The total memory requirement is 1533 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: 15717.9163 .0682 .0682 .0682
Scale: 15282.5470 .0702 .0701 .0702
Add: 16917.2731 .0950 .0950 .0951
Triad: 17330.8483 .0928 .0928 .0928
----------------------------------------------------
Solution Validates!
----------------------------------------------------
______________________________________________
Ly Vu
IBM Corp. - Austin, Texas.
RS/6000 Performance Analysis.
Phone : (512) 838-8228
Email : lyvu@us.ibm.com
This archive was generated by hypermail 2.1.4 : Mon Oct 03 2005 - 20:46:12 CDT