[R-sig-ME] How can I make R using more than 1 core (8 available) on a Ubuntu Rstudio server ?

Douglas Bates bates at stat.wisc.edu
Thu Jan 18 21:18:26 CET 2018

On Thu, Jan 18, 2018 at 2:07 PM Douglas Bates <bates at stat.wisc.edu> wrote:

> The procedure is fairly simple - just rewrite the lme4 package from
> scratch. :-)

On a less facetious note, you may find it worthwhile installing Julia (see
https://julialang.org/downloads) and the MixedModels package.  The
MixedModels package itself is not multi-threaded but most of the linear
algebra goes through the BLAS (Basic Linear Algebra Subroutines) and, by
default, Julia is compiled against OpenBLAS.  You can, in a reasonably
straightforward way - as these things go, compile Julia against Intel's
Math Kernel Library (MKL) which helps accelerate the linear algebra.

An accelerated BLAS is not likely to buy you too much in lme4 because the
linear algebra uses Eigen and SuiteSparse.

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