[Beowulf] Re: Redmond is at it, again

Camm Maguire camm at enhanced.com
Fri Jun 11 09:49:24 EDT 2004


Joshua Baker-LePain <jlb17 at duke.edu> writes:

> On Thu, 10 Jun 2004 at 11:36am, Robert G. Brown wrote
> 
> > can improve by 10-20% from that.  Finally, in C one can implement linear
> > algebra code in particular using ATLAS, which can all by itself speed
> > operations up by as much as a factor of three.
> 
> Actually, Matlab's lapack *is* ATLAS.  They provide several copies of it, 
> compiled for different processors, that get called based on a runtime 
> architecture check.  My R13 install has atlas_Athlon.so, atlas_P4.so, 
> atlas_PII.so, atlas_PIII.so, and atlas_PPro.so.  In addition, there are 
> directions floating about for compiling your own optimized ATLAS on your 
> particular box and substituting that for the ones that come with Matlab.
> 

This is much like the setup with atlas on Debian, where quite a few
packages now are transparently accelerated via the selection of an
atlas .so appropriate for the running machine.  Custom builds/timings
are supported too with one command.

On i386, we have PII, sse1, sse2, and 3dnow builds
On ppc, generic and altivec
On sparc, generic and v9
On alpha, generic and ev5
Others just have generic builds at present.

Here are a list of packages making use of this facility.  Packages
using the libs mentioned below also thereby use the atlas
blas/lapack. 

  siptoolbox
  refblas3-test
  r-cran-quadprog
  r-cran-mgcv
  r-cran-kernsmooth
  r-base-core
  python2.3-numeric-ext
  python2.3-numarray-ext
  python2.2-numeric-ext
  python2.2-numarray-ext
  python2.1-numeric-ext
  octave2.1
  octave-statdataml
  octave-plplot
  octave-forge
  libpetsc2.2.0
  libgretl1
  lapack3-test
  lapack3
  kmatplot
  gretl
  gandalf1
  atlas3-test
  animal0
  tela
  paw-static
  paw++-static
  paw++
  paw
  mpqc
  libphtools1
  libpdflib804
  libpaw1
  libmathlib1
  libluminate3
  libisajet758
  libherwig59
  libgeant1
  libcojets1
  lapack99
  lapack
  illuminator-demo
  ghemical
  blas-test


Take care,

> -- 
> Joshua Baker-LePain
> Department of Biomedical Engineering
> Duke University
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> 
> 

-- 
Camm Maguire			     			camm at enhanced.com
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"The earth is but one country, and mankind its citizens."  --  Baha'u'llah
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