Joshua Baker-LePain <[EMAIL PROTECTED]> 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 > _______________________________________________ > Beowulf mailing list, [EMAIL PROTECTED] > To change your subscription (digest mode or unsubscribe) visit > http://www.beowulf.org/mailman/listinfo/beowulf > > > -- Camm Maguire [EMAIL PROTECTED] ========================================================================== "The earth is but one country, and mankind its citizens." -- Baha'u'llah -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
