> On Tuesday, April 26, 2011 2:52:01 PM UTC-7, François wrote: > > > On Apr 26, 6:14 am, Francois Bissey: > > > > Actually do we know what version of > > > > ATLAS/BLAS/LAPACK is shipped with OSX? > > > > > > Here are a few excerpts from the sage install log file > > > > > > /Applications/sage-4.7.alpha5/install.log > > > > > > on my mac. > > > > > > ATLAS=atlas-3.8.3.p16 > > > LAPACK=lapack-20071123.p2 > > > BLAS=blas-20070724 > > > > I was meaning shipped with OSX not with sage. > > On my machine (which is OS X 10.6.7, so it may not be relevant), > /usr/lib/libatlas.dylib is a link pointing to > > /System/Library/Frameworks/Accelerate.framework/Frameworks/vecLib.framework > /Versions/Current/libBLAS.dylib > > libblas.dylib and libcblas.dylib are links pointing to the same file. > liblapack.dylib points to another file in the same directory, as do > libclapack and libf77lapack. > > The file .../Current/Resources/version.plist says > > <dict> > <key>BuildVersion</key> > <string>6</string> > <key>CFBundleShortVersionString</key> > <string>3.6</string> > <key>CFBundleVersion</key> > <string>vecLib 3.6</string> > <key>ProjectName</key> > <string>vecLib</string> > <key>SourceVersion</key> > <string>2680001</string> > </dict> > > There are also various files like .../Current/Headers/cblas.h, but there is > no obvious version number in those files. There is a reference to > vDSP_Version, which seems to be 268.0. The file clapack.h says > "Definitions and prototypes for LAPACK v3.1.1 as provided Apple Computer," > and the file modification date is July 11, 2009. This file mentions the > function zgesdd, which may be the one causing the problems, according to > the discussion on the trac ticket. There are no header files with the > word "atlas" in their names. > That clarify things a little bit. Proprietary implementation, the headers are the standard one as you would expect. Atlas is not involved at all here.
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