2002-03-15 03:53:15 +00:00
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The ATLAS (Automatically Tuned Linear Algebra Software) project is
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an ongoing research effort focusing on applying empirical techniques
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in order to provide portable performance.
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2007-12-19 22:47:57 +00:00
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At present, it provides C and Fortran77 interfaces to a portable,
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efficient BLAS implementation, as well as enhanced versions of
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a few routines from LAPACK.
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2002-03-15 03:53:15 +00:00
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2007-12-19 22:47:57 +00:00
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If you want to link software to ATLAS rather than the standard BLAS, simply
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use -lf77blas -latlas (order is important), or -lptf77blas -latlas for the
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threaded library (which is primarily useful on SMP machines), in place of
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the usual -lblas. Corresponding pure C versions of the ATLAS libraries are
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also included, in libcblas and libptcblas.
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2002-03-15 03:53:15 +00:00
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2007-12-19 22:47:57 +00:00
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The ATLAS-enhanced LAPACK routines are also provided.
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2008-02-07 07:47:19 +00:00
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To link software with this library instead of the standard LAPACK, for example, use
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2007-12-19 22:47:57 +00:00
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-L/usr/local/lib/gcc-4.2.3 -L/usr/local/lib/gcc-4.2.3/gcc/i386-portbld-freebsd7.0/4.2.3 -lalapack -lf77blas -lcblas -latlas -lgfortranbegin -lgfortran -lm, or
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-L/usr/local/lib/gcc-4.2.3 -L/usr/local/lib/gcc-4.2.3/gcc/i386-portbld-freebsd7.0/4.2.3 -lalapack_r -lptf77blas -lptcblas -latlas -lgfortranbegin -lgfortran
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-lm for the threaded library, in place of the usual -llapack.
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Note that
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-L/usr/local/lib/gcc-4.2.3 -L/usr/local/lib/gcc-4.2.3/gcc/i386-portbld-freebsd7.0/4.2.3
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depends on your environment.
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2002-03-15 03:53:15 +00:00
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WWW: http://math-atlas.sourceforge.net/
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