Dirk, that reminds me. I DO build R myself from scratch, but it often ends up not using Atlas even though I told it "--with-blas".
In particular, I just built R 2.11.1 on an x86-64 server running Ubuntu 8.04.4 LTS (Hardy), and it doesn't want to use Atlas. This machine has both these Atlas packages installed, although I'm not sure what the 3gf stuff is: ii atlas3-base 3.6.0-20.6 Automatically Tuned Linear Algebra Software, ii libatlas3gf-base 3.6.0-21.1ubuntu3 Automatically Tuned Linear Algebra Software, Below is my configure command and some of the relevant output. Am I doing anything obviously wrong? Or could this be some sort of limitation of the older Atlas packages on this machine? Is R deciding not to use Atlas because of the "checking whether double complex BLAS can be used... no"? ------------------------------------------------------------ LIBnn=lib r_arch=x86_64 LIBS=-lpthread ../configure -with-x=yes --enable-R-shlib --enable-R-profiling --with-tcltk=/usr/lib/tcl8.4 --with-tcl-config=/usr/lib/tcl8.4/tclConfig.sh --enable-threads=posix --with-blas checking build system type... x86_64-unknown-linux-gnu checking host system type... x86_64-unknown-linux-gnu checking whether C99 double complex is compatible with Rcomplex... yes yes checking for cblas_cdotu_sub in vecLib framework... no checking for dgemm_... no checking for ATL_xerbla in -latlas... no checking for dgemm_ in -lblas... yes checking for dgemm_ in -ldgemm... no checking for dgemm_ in -lblas... (cached) yes checking for dgemm_ in -lessl... no checking for dgemm_ in -lblas... (cached) yes checking whether double complex BLAS can be used... no C compiler: gcc -std=gnu99 -g -O2 Fortran 77 compiler: gfortran -g -O C++ compiler: g++ -g -O2 Fortran 90/95 compiler: gfortran -g -O Obj-C compiler: Interfaces supported: X11, tcltk External libraries: readline Additional capabilities: PNG, JPEG, TIFF, NLS, cairo Options enabled: shared R library, shared BLAS, R profiling, Java Recommended packages: yes -- Andrew Piskorski <[email protected]> http://www.piskorski.com/ _______________________________________________ R-SIG-Debian mailing list [email protected] https://stat.ethz.ch/mailman/listinfo/r-sig-debian
