[R-sig-hpc] Matrix multiplication

Claudia Beleites claudia.beleites at ipht-jena.de
Mon Mar 12 10:44:26 CET 2012

Dear Patrick,

> I noticed that there isn't a function for matrix multiplication in
> the new parallel library. What would be the most efficient way to do
> a matrix multiplication there?
I use libgotoblas2 / libopenblas which automatically does multithreaded
%*% matrix multiplication. There's an environment variable
GOTO_NUM_THREADS to decide how many threads to use.


Claudia Beleites

Claudia Beleites
Institute of Photonic Technology
Albert-Einstein-Str. 9
07745 Jena

email: claudia.beleites at ipht-jena.de
phone: +49 3641 206-133
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