STREAM "Top20" results

This table shows the "Top 20" shared-memory system results, from either the "standard" or "tuned" category. This is intended to be a "show-off" table (similar to the LINPACK NxN benchmark), so code modification (including assembly language coding) is acceptable.

Here "shared-memory" means that all memory is transparently accessible to all processors using standard load and store operations.

The table excludes:

cluster results
"MPP" systems, such as the IBM SP and Cray T3D/T3E

STREAM Memory Bandwidth --- John D. McCalpin, mccalpin@cs.virginia.edu
Revised to Tue Apr 15 17:29:13 CDT 2008

All results are in MB/s --- 1 MB=10^6 B, *not* 2^20 B

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Machine ID                      ncpus    COPY     SCALE       ADD     TRIAD
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SGI_Altix_4700                  1024  3661963.0  3677482.0  4385585.0  4350166.0 data
SGI_Altix_3700_Bx2               512   906388.0   870211.0  1055179.0  1119913.0 data
SGI_Altix_3000                   512   854062.0   854338.0  1008594.0  1007828.0 data
NEC_SX-7                          32   876174.7   865144.1   869179.2   872259.1 data
IBM_Power_595                     64   679207.2   624707.8   777334.8   805804.6 data
NEC_SX-5-16A                      16   607492.0   590390.0   607412.0   583069.0 data
NEC_SX-4                          32   434784.0   432886.0   437358.0   436954.0 data
HP_AlphaServer_GS1280-1300        64   407351.0   400142.0   437010.0   431450.0 data
Cray_T932_321024-3E               32   310721.0   302182.0   359841.0   359270.0 data
Fujitsu/Sun_Enterprise_M9000     128   224401.0   223113.0   224271.0   227059.0 data
NEC_SX-6                           8   202627.2   192306.2   190231.3   213024.3 data
IBM_System_p5_595                 64   186137.0   179639.0   200410.0   206243.0 data
HP_Integrity_SuperDome_dc        128   154504.0   152999.0   169468.0   170833.0 data
IBM_Power_575                     32   142708.2   142612.4   159010.7   162844.0 data
Cray_C90                          16   105497.0   104656.0   101736.0   103812.0 data
IBM_System_p5-575                  8    77901.0    81228.0    96726.0   100523.0 data
SGI_Origin3800-500               256    87019.5    85514.4   101695.6    99680.2 data
Azul_Vega2_7280                  768    83968.4    83223.6    90757.1    91394.2 data
Cray_X1                            4    74417.0    77577.0    83629.0    84455.0 data
Sun_F25K-1050-72chip             144    68184.1    67462.7    75402.7    76097.8 data
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