On Mon, 26 Sep 2005, Jennifer Lai wrote: > Hi, > > Prof Brian Ripley wrote: > >> On Mon, 26 Sep 2005, Jennifer Lai wrote: >> >>> Hi, >>> I checked config.log and BLAS_LIBS was not set. However, I have set >>> BLAS_LIBS='-L/usr/lib64 -lblas' in config.site file. >>> I can't figure out why BLAS_LIBS is not set, when PGI compiler is used. >>> When gcc is used, BLAS_LIBS need not be set in config.site and >>> automatically get picked up by the configuration script. >>> >>> Here is a snapshot of the configuration script output (for buidling R with >>> PGI compiler): >>> checking for complex.h... yes >>> checking for double complex... no >>> checking for sgemm_ in -L/usr/lib64 -lblas... yes >>> checking whether double complex BLAS can be used... no >>> >>> Is there other thing I should look into in the config.log? >> >> >> You need to look for the evidence for the line >> >>> checking for sgemm_ in -L/usr/lib64 -lblas... yes >> >> >> in config.log.
Where is it? > I very much doubt that -L/usr/lib64 helps you: surely that >> should be in your library path. But you will probably find you cannot mix >> code compiled under different compilers, especially as -lblas is likely to >> be Fortran compiled with g77. (You may need -lblas -lg2c, but you would be >> better off using the BLAS built into R.) >> > > "-lg2c -lblas" didn't work. I am not sure if mixing code compiled under > different compilers is the problem, because I built R with ACML library (PGI > compiled), and config.log still shows that BLAS_LIBS is not set. > Sorry for being ignorant, but where is the BLAS built into R? Is configuring > R with "--without-blas" option pick up the BLAS built into R? I thought it's > to build R with BLAS package. No, and please 1) Do read the relevant manual 2) Do answer the question. > > Your help is very much appreciated. > > Thanks, > Jennifer > > > -- Brian D. Ripley, [EMAIL PROTECTED] Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272866 (PA) Oxford OX1 3TG, UK Fax: +44 1865 272595 ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
