Error in complex GEMM for C = A*A'

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Error in complex GEMM for C = A*A'

by Clint Whaley :: Rate this Message:

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Guys,

A user just discovered an error that effects all ATLAS releases at least
as far back as 3.3.  Essentially, complex GEMM (ZGEMM & DGEMM) can produce
the wrong answer for the special case where B = transpose(A).  Here's
the errata entry describing the fix:
   http://math-atlas.sourceforge.net/errata.html#AAT

Best regards,
Clint

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