Cray Results for bandwidth test

From: Andrew Zachary (alz@grumpy.cray.com)
Date: Sat Sep 28 1991 - 07:54:52 CDT


John,

I got curious, so I took your benchmark test and ran it on a Y-MP.

I used sn1057, an 8 processor, 128 Mword Y-MP with 256 memory banks.
Here are the results from your test....

 Timing calibration ; t = 0.1128156 clicks
     
 Assignment: Rate = 14182.43576243 MB/s MFLOPS = 0.
 Scaling: Rate = 14185.52898724 MB/s MFLOPS = 886.5955617026
 Summing: Rate = 21278.29348086 MB/s MFLOPS = 886.5955617026
 SAXPYing: Rate = 21277.27480664 MB/s MFLOPS = 1773.106233887



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