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Re: 2 fail with tip chol.cc
From: |
Jarno Rajahalme |
Subject: |
Re: 2 fail with tip chol.cc |
Date: |
Mon, 24 Jan 2011 08:46:44 +0200 |
On Jan 21, 2011, at 19:16 , ext Jaroslav Hajek wrote:
>
> Yes, some ATLASes have a buggy CHERK, that's a recurring issue. I
> don't think your patch actually helps in all cases, because I've seen
> stuff like CHERK creating (NaN, 0) on the diagonal :(
> This is really something that should be fixed in ATLAS (and maybe it
> was fixed, I never got around to try the development version).
>
> In any case, if you're making a workaround that decreases performance,
> even if only slightly (such as in this case), I suppose you should
> better mark it as a workaround, because it's unlikely that someone
> will be able to undo the change later.
I guess it would be too much trouble to check for the bug in configure and only
work around if needed?
Jarno