[Numpy-discussion] Why cblas not blas?

Piotr Luszczek luszczek at cs.utk.edu
Tue May 2 12:36:11 EDT 2006


On Tuesday 02 May 2006 14:22, Fernando Perez wrote:
> Hi Piotr,
>
> On 5/2/06, Piotr Luszczek <luszczek at cs.utk.edu> wrote:
> > PS. Be careful with GOTO BLAS on Intel Dual Core and Itanium.
> > I've seen problems in performance and (!) correctness. Mr. Goto
> > has been notified and hopefully is working on it.
>
> Quick question: a colleague from ORNL to whom I forwarded this
> information asked me whether the problem appears also on single-cpus
> used with multithreaded code.  Do you know?  I think he uses both AMD
> and Itanium chips, but I'm not 100% certain.

The problems we had were in multithreaded code on Dual
Core Intel. And on Itanium the problems were with single-threaded
code. I don't know the details on problems with AMD cpus
it's been reported on GOTO BLAS mailing list.

Piotr




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