ATLAS - R-help | R Mailing Lists

Mon, Jul 30, 2001 2:18 PM #

I thought I would try compiling R this time with the ATLAS libraries.
I have compiled ATLAS and I have the following libraries:

libatlas.a      libf77blas.a    libptcblas.a    libtstatlas.a
libcblas.a      liblapack.a     libptf77blas.a


Is it sufficient to use ' --with-blas=libatlas.a ' when configuring or 
do I need to specify any of the other libraries as well?

William D. McCoy
Geosciences
University of Massachusetts
Amherst, MA  01003
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Jason Turner

Mon, Jul 30, 2001 5:46 PM #

[snip: atlas libraries]

Assuming you have a Un*x-like installation...

As long as the ATLAS libraries were put in a place they could be
easily found (usually /usr/local/lib), and ldconfig(8) has been run 
since they were put there, the configure script should pick them
up automagically.  I simply ran configure without options and
got...  
(config.cache)
ac_cv_lib_atlas_ATL_xerbla=${ac_cv_lib_atlas_ATL_xerbla='yes'}

Cheers

Jason

Indigo Industrial Controls Ltd.
64-21-343-545
jasont at indigoindustrial.co.nz
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Brian Ripley

Mon, Jul 30, 2001 11:24 PM #

On Mon, 30 Jul 2001, William D. McCoy wrote:

If this is Unix(-alike) ....

You need libatlas.a, libcblas.a, libf77blas.a, and you want to specify
them as "-latlas -lcblas -lf77blas".  *However* they need to be in your
library path, and if they are, configure will find them.  So just

set the library path as needed (e.g. LIBS in config.site)
rm config.cache
./configure
make

will make use of ATLAS.  See the R-admin.html manual for more details.

Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272860 (secr)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

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