From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dirk Eddelbuettel To: Brian Gough Cc: Henry Sobotka , gsl-discuss@sources.redhat.com Subject: Re: gsl_multifit Date: Wed, 19 Dec 2001 13:20:00 -0000 Message-id: <20011019090018.B13158@debian.org> References: <4DFD94A38EB3104E838576A77AEBB36E166DC2@hermes.mathcore.se> <20011018182055.A2874@abb121.ram1st.wh.tu-darmstadt.de> <15311.12351.959808.416806@debian> <3BCF554D.D5A@axess.com> <15311.64643.841991.415839@debian> X-SW-Source: 2001/msg00629.html On Fri, Oct 19, 2001 at 11:12:19AM +0100, Brian Gough wrote: > The only other optimization I have up my sleeve is to introduce more > use of BLAS functions. There are quite a few places where the code > uses a for-loop instead of calling the corresponding BLAS routine. That would be great as Atlas can transparently replace the BLAS. Debian does that for GNU R and GNU Octave, and the speed gain can be of the order of 8 or 9 times [ for suitable operations and matrix sizes, of course ]. Dirk -- Three out of two people have difficulties with fractions.