[Gretl-devel] Re: mols() and multithreading
Am 28.01.2020 um 09:27 schrieb Marcin Błażejowski:
On 28.01.2020 09:18, Sven Schreiber wrote:
> But openblas alone doesn't explain the equality of the 4-thread and
> the single-thread outcome, at least comparing to the Windows results.
> Or did you compile openblas yourself? (Perhaps with a different dgemm
> threshold?)
>
No, I did not. This is a standard debian package
(libopenblas0-openmp:amd64), but I'm going to compile it so:
Hm, what's
your Debian and/or openblas library version then?
what dgemm
threshold does?
GEMM_MULTITHREAD_THRESHOLD, see Allin's message on Jan 24th. Some people replace the
default of 4 with 50, apparently.
cheers
sven