[Mplapack-devel] MPACK 0.8.0 RC1 : CUDA support for Rgemm in double-double precision.

[Maho N. <ma...@ri...>]

Hi all,

I have just uploaded MPACK 0.8.0RC1
http://sourceforge.net/projects/mplapack/files/mpack/mpack%200.8.0/mpack-0.8.0-RC1.tar.gz/download
.

CUDA version of Rgemm in double-double precision has been integrated.
To enable CUDA version, pass configure to "--enable-cuda=yes"
also, if multiple version of CUDA toolkit is installed or if you installed to a different
directory than /usr/local/cuda/, you may want to
speficfy like following
--with-cudatoolkithome=/usr/local/cuda-5.0/ 
.

>From my experience, CUDA 4.0 gives usually best performance. 
You don't want to use CUDA 3.1 and 3.2.
CUDA 5.0 gives best when the size of matrix is multiple of 64, but much worse
than 4.0, 3.2 and 3.1.

Thanks
-- Nakata Maho http://accc.riken.jp/maho/ , JA OOO http://ja.openoffice.org/
http://blog.goo.ne.jp/nakatamaho/ ,GPG: http://accc.riken.jp/maho/maho.pgp.txt