From: Schmidt, David (Performance Eng.) (D.Schmidt@hp.com)
Date: Wed Sep 28 2005 - 18:39:51 CDT
John,
Below are standard STREAM results for the HP ProLiant BL45p (4 CPUs, 8
cores) and the HP ProLiant DL585 (4 CPUs, 8 cores) using 2.4GHz AMD 880
Opteron dual-core processors. The configurations are described below
with the results. Please post them to the STREAM website. Thanks,
HP ProLiant BL45p
4x2.4GHz /1MB L2 (per core) dual core 880 Opteron processors
32GB PC3200 memory (16x2GB DIMMs)
SuSE Linux Enterprise Server 9 (x86_64) SP1
I used Revision 5.3 of the stream code and compiled with PathScale EKO
C++ compiler v.2.1:
pathcc -O3 -CG:use_prefetchnta -LNO:prefetch_ahead=4 -mp -o ompstream
stream_omp.c
For 4x2.4GHz Opteron 880 processors (8 cores):
-------------------------------------------------------------
This system uses 8 bytes per DOUBLE PRECISION word.
-------------------------------------------------------------
Array size = 8000000, Offset = 49152
Total memory required = 183.1 MB.
Each test is run 10 times, but only
the *best* time for each is used.
-------------------------------------------------------------
Number of Threads requested = 8
Number of Threads requested = 8
Number of Threads requested = 8
Number of Threads requested = 8
Number of Threads requested = 8
Number of Threads requested = 8
Number of Threads requested = 8
Number of Threads requested = 8
-------------------------------------------------------------
Your clock granularity/precision appears to be 1 microseconds.
Each test below will take on the order of 7460 microseconds.
(= 7460 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: 17613.8751 0.0066 0.0073 0.0074
Scale: 17682.3303 0.0065 0.0072 0.0074
Add: 17782.6783 0.0098 0.0108 0.0109
Triad: 17786.2130 0.0098 0.0108 0.0109
-------------------------------------------------------------
Solution Validates
-------------------------------------------------------------
------------------------------------------------------------------------
------------------
HP ProLiant DL585
4x2.4GHz/1MB L2 (per core) 880 Opteron processors
32GB PC3200 memory (16x2GB DIMMs)
SuSE Linux Enterprise Server 9 (x86_64) SP1
I used Revision 5.3 of the stream code and compiled with PathScale EKO
C++ compiler v.2.1:
pathcc -O3 -CG:use_prefetchnta -LNO:prefetch_ahead=4 -mp -o ompstream
stream_omp.c
-------------------------------------------------------------
This system uses 8 bytes per DOUBLE PRECISION word.
-------------------------------------------------------------
Array size = 8000000, Offset = 41472
Total memory required = 183.1 MB.
Each test is run 10 times, but only
the *best* time for each is used.
-------------------------------------------------------------
Number of Threads requested = 8
Number of Threads requested = 8
Number of Threads requested = 8
Number of Threads requested = 8
Number of Threads requested = 8
Number of Threads requested = 8
Number of Threads requested = 8
Number of Threads requested = 8
-------------------------------------------------------------
Your clock granularity/precision appears to be 1 microseconds.
Each test below will take on the order of 7652 microseconds.
(= 7652 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: 16892.8263 0.0069 0.0076 0.0078
Scale: 16913.0489 0.0068 0.0076 0.0076
Add: 16493.3922 0.0105 0.0116 0.0119
Triad: 16507.5920 0.0105 0.0116 0.0117
-------------------------------------------------------------
Solution Validates
-------------------------------------------------------------
David Schmidt
Hewlett-Packard Company
(281) 514-5039
D.Schmidt@hp.com
This archive was generated by hypermail 2.1.4 : Mon Oct 03 2005 - 20:46:12 CDT