[PATCH] Loop optimization to gain ~15% performance about numexpr HOT 3 CLOSED

From [email protected] on November 19, 2010 02:01:27

hmmm, please don't look at it/try it just yet :) I was so excited I didn't check if the results were even correct, and it turns out it computes garbage. I know why, so I'll fix this ASAP. I think and hope the speed will be the same after fixing that, but I'm not sure... Stay tuned...

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From [email protected] on November 19, 2010 02:36:19

For some reason, the correct version is slower than current numexpr. I guess this was too good to be true... It seems like my C optimization tricks from 15 years ago don't work anymore... Please close this ticket (and bury it as deep as possible ;-)). Sorry for the spam.

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From [email protected] on November 19, 2010 02:58:35

Well, at least you experimented with the computing kernel, so you may say that you are kind of an 'expert' with numexpr now. Remember that in order to get a good result you need to get wrong first (and not only once :-)

Status: Invalid

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