[Rd] GPU Computing
matloff at cs.ucdavis.edu
Tue Aug 21 23:10:44 CEST 2012
Oops, sent to the wrong list (again), sorry.
Date: Tue, 21 Aug 2012 13:54:48 -0700
From: Norm Matloff <matloff at cs.ucdavis.edu>
To: r-sig-hpc at r-project.org
Subject: Re: [R-sig-hpc] GPU Computing
Peter Chausse wrote:
> I am looking for a function similar to mclapply() that would work with
> GPU cores. I have looked at all possible packages related to GPU...
The short answer is no.
Functions like mclapply() work on, say a quad core machine, by setting
up new invocations of R to run on each of the four CPU cores. What you
have in mind would mean having R run on each of the GPU cores. This is
not possible, for a variety of reasons (R needs a terminal shell, it
needs I/O etc.).
To have R take advantage of GPUs, one must write C/C++ (or FORTRAN)
code. Currently packages that do this are very limited. See the
relevant CRAN Task View, at
You might also take a look at my Rth package, at
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