Author: Robert Hyatt
Date: 09:15:02 04/16/03
Go up one level in this thread
On April 16, 2003 at 01:39:10, Tom Kerrigan wrote: >On April 16, 2003 at 01:37:08, Tom Kerrigan wrote: > >>Sure. What's more likely? >> >>1. Your code that accounts for spins is not working right for some reason. >>2. Your splitting algorithm sends all the slow nodes to the 2nd thread. >>3. Your 2nd processor underclocks itself by 1/2 when it detects that it's >>running a Crafty thread. >>4. You really are searching those nodes, but due to a bug from overclocking, the >>ALU doesn't increment the node counter. >>5. >> >>-Tom > >Darn, hit tab accidentally and didn't finish my list. I was just getting to >alien intervention. > >-Tom Easy to resort to wise cracks when you have no idea what you are talking about. Had you read _carefully_ you would have noticed that when I did the two thread test on two other machines, the NPS values were very close to double. _only_ on my dual xeon is it 1.5. That makes it unlikely that it is software, even though I know this particular code has been working correctly for 5 years.
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