[Math-atlas-errors] ATLAS s/cGEMM error

[<wh...@cs...>]

Guys,

If ATLAS chooses an NB > 84, then it is possible for SGEMM and CGEMM to
produce the wrong answer for M that are multiples of 14.  If you use
the architectural defaults on a 64-bit AMD K10h, then you definitely
have this error, and if you don't use arch defs on other x86 platforms
you could potentially have it (if the search chooses NB > 84 and uses
this cleanup routine).

For details and the fix, see:
   http://math-atlas.sourceforge.net/errata.html#mu14nb120

Regards,
Clint

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** R. Clint Whaley, PhD ** Assist Prof, UTSA ** www.cs.utsa.edu/~whaley **
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