Re: memory bandwidth

From: Kate Hedstrom (kate@ahab.rutgers.edu)
Date: Wed Oct 02 1991 - 17:28:12 CDT


John,

I just ran it again with 3 processors ( and 3 other jobs going):

--------------------------------------
 Double precision appears to have 16 digits of accuracy
 Assuming 8 bytes per DOUBLEPRECISION word
--------------------------------------
 Timing calibration ; time = 768.9999878406525 hundredths of a second
 Increase the size of the arrays if this is <30 and your clock precision is =<1/100 second
 ---------------------------------------------------
Function Rate (MB/s) RMS time Min time Max time
Assignment: 228.5716 0.3691 0.2800 0.4400
Scaling : 246.1536 0.3468 0.2600 0.4100
Summing : 246.1536 0.4819 0.3900 0.5500
SAXPYing : 200.0002 0.5412 0.4800 0.6100

Kate



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