Re: Attainable memory bandwidth

From: Jeff Weinstein (jsw@xhead.esd.sgi.com)
Date: Sun Sep 29 1991 - 18:28:41 CDT

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Compiled f77 -O2

SGI 4D/35:

Timing calibration ; t = 16.00000 clicks

Assignment: Rate = 100.0000 MB/s MFLOPS = 0.0000000E+00
Scaling: Rate = 33.33333 MB/s MFLOPS = 2.083333
Summing: Rate = 55.81396 MB/s MFLOPS = 2.325582
SAXPYing: Rate = 47.05882 MB/s MFLOPS = 3.921569

SGI Indigo:

Timing calibration ; t = 24.00000 clicks

Assignment: Rate = 66.66666 MB/s MFLOPS = 0.0000000E+00
Scaling: Rate = 27.58620 MB/s MFLOPS = 1.724138
Summing: Rate = 58.53657 MB/s MFLOPS = 2.439024
SAXPYing: Rate = 38.09525 MB/s MFLOPS = 3.174604

Will you be posting another set of results when you get some replys?

--Jeff

-- 
Jeff Weinstein - X Protocol Police
Silicon Graphics, Inc., Entry Systems Division, Window Systems
jsw@xhead.esd.sgi.com
Any opinions expressed above are mine, not sgi's.

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