Hello Victor, > I’m trying to install Cactus, using the Intel compiler and MKL for > blas/lapack. With the intel compiler it is enough to add the “-mkl” > flag to get blas/lapack. However, Cactus somehow needs to be told > that that is provided. > > Can someone dictate me the steps? I’m an absolute novice at Cactus so > please be explicit. > > (I’ve done a good amount of googling and I’m not finding this > information. The word “blas” does not appear in the users / > reference / maint guide, for as far as I can see.) Sure :-). First place to look are some of the simfactory option lists for machines that offer mkl (at least that is what I had to do since it is a bit arkane). Then (from https://bitbucket.org/simfactory/simfactory2/src/06f687ebb0ae11f3e0ac37999a1d7ac43bb02c49/mdb/optionlists/comet.cfg?at=master&fileviewer=file-view-default):
BLAS_DIR = NO_BUILD BLAS_LIBS = -mkl OPENBLAS_DIR = NO_BUILD OPENBLAS_LIBS = -mkl in your options, passed either via make sim options=options.cfg when using pure Cactus or via simfactory/bin/build sim --optionlist options.cfg when using simfactory. You must make sure to have the OpenBLAS and BLAS ExternalLibraries in your thornlist (OpenBLAS provides LAPACK dispite the name and really only servers as a placeholder for mkl in this case). Yours, Roland -- My email is as private as my paper mail. I therefore support encrypting and signing email messages. Get my PGP key from http://pgp.mit.edu .
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