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. 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. Your help is very much appreciated. Thanks, Jennifer ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
