From: Joe Glenski (glenski@cray.com)
Date: Thu Apr 18 2002 - 17:57:08 CDT
John-
Shown below are the "stream" results for the CRAY SV1ex system. Please
add them to your table.
The system used has 32 cpus, 32 Gbytes of memory, and a 96 Gbyte SSDi.
(The SSDi was not used in these tests.)
The system was running UNICOS 10.0.1
The compiler used was cf90 3.5.0.1, with the following options:
-dp -O scalar3,vector3,task3
We ran the traditional PVP version of streams that we have used
for the past several years.
Regards,
-Joe Glenski.
Benchmarking Group
Cray Inc., 1340 Mendota Heights Rd, Mendota Heights, MN 55120 USA
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Summary:
STREAM Memory Bandwidth for Cray SV1ex
All results are in MB/s --- 1 MB=10^6 B, *not* 2^20 B
-----------------------------------------------------------
Machine ID ncpus COPY SCALE ADD TRIAD
-----------------------------------------------------------
Cray_SV1ex 32 42317.797 42237.905 47829.836 47821.927
Cray_SV1ex 24 38844.706 38776.920 46002.964 46036.779
Cray_SV1ex 16 35641.211 35435.637 42389.950 41936.527
Cray_SV1ex 8 20721.278 20309.129 27225.012 27132.534
Cray_SV1ex 4 10857.969 10252.107 13834.092 14022.400
Cray_SV1ex 2 5588.210 5163.882 6956.134 7111.793
Cray_SV1ex 1 2819.084 2645.164 3541.879 3584.286
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STREAM benchmark
----------------
Number of CPUs: 1
Array size: 4001 Kwords
Array padding: 20248 Words
Aoff Boff Coff Assignment:Scaling: Summing: SAXPYing:
-------------------------------------------------------------
32 32 32 2819.084 2645.164 3541.879 3584.286
-----------------------------------------------------------------------
STREAM benchmark
----------------
Number of CPUs: 2
Array size: 4001 Kwords
Array padding: 20248 Words
Aoff Boff Coff Assignment:Scaling: Summing: SAXPYing:
-------------------------------------------------------------
32 32 32 5588.210 5163.882 6956.134 7111.793
-----------------------------------------------------------------------
STREAM benchmark
----------------
Number of CPUs: 4
Array size: 4001 Kwords
Array padding: 20248 Words
Aoff Boff Coff Assignment:Scaling: Summing: SAXPYing:
-------------------------------------------------------------
32 32 32 10857.969 10252.107 13834.092 14022.400
-----------------------------------------------------------------------
STREAM benchmark
----------------
Number of CPUs: 8
Array size: 4001 Kwords
Array padding: 20248 Words
Aoff Boff Coff Assignment:Scaling: Summing: SAXPYing:
-------------------------------------------------------------
32 32 32 20721.278 20309.129 27225.012 27132.534
-----------------------------------------------------------------------
STREAM benchmark
----------------
Number of CPUs: 16
Array size: 4001 Kwords
Array padding: 20248 Words
Aoff Boff Coff Assignment:Scaling: Summing: SAXPYing:
-------------------------------------------------------------
32 32 32 35641.211 35435.637 42389.950 41936.527
-----------------------------------------------------------------------
STREAM benchmark
----------------
Number of CPUs: 24
Array size: 4001 Kwords
Array padding: 20248 Words
Aoff Boff Coff Assignment:Scaling: Summing: SAXPYing:
-------------------------------------------------------------
32 32 32 38844.706 38776.920 46002.964 46036.779
-----------------------------------------------------------------------
STREAM benchmark
----------------
Number of CPUs: 32
Array size: 4001 Kwords
Array padding: 20248 Words
Aoff Boff Coff Assignment:Scaling: Summing: SAXPYing:
-------------------------------------------------------------
32 32 32 42317.797 42237.905 47829.836 47821.927
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