[R-sig-hpc] Matrix multiplication
Patrik Waldmann
patrik.waldmann at boku.ac.at
Tue Mar 13 10:23:48 CET 2012
What does automatically mean? Is X%*%t(X) parallelized?
Patrik
>>> Simon Urbanek <simon.urbanek at r-project.org> 03/13/12 07:27 AM >>>
On Mar 12, 2012, at 5:40 AM, Patrik Waldmann wrote:
> Dear members,
>
> 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?
>
The parallel package is for *explicit* parallelization. R already does implicit parallelization (using OpenMP or multi-threaded BLAS or both) automatically - this includes matrix multiplication.
Cheers,
Simon
More information about the R-sig-hpc
mailing list