Hi, I am having trouble configuring R to use the vecLib BLAS and LAPACK libraries. I am on Mac OS 11.0.1 and Xcode 12.2. I tried the following options:
1. I downloaded the R binary from CRAN. I tried to follow the instructions at https://cran.r-project.org/bin/macosx/RMacOSX-FAQ.html#Which-BLAS-is-used-and-how-can-it-be-changed_003f to switch the BLAS library. I do not see libRblas.vecLib.dylib in the folder so I cannot switch the BLAS library as given in the FAQ. I also cannot locate libRblas.vecLib.dylib on my system. 2. I tried to compile R from source. I used the following configuration options: --with-blas="-framework Accelerate” and --with-lapack. I should have all requisite libraries. The compiled R does not use the vecLib BLAS and LAPACK (sessionInfo below signature). During configure, I noticed configure outputted: checking for dgemm_ in -framework Accelerate… no Is that perhaps why configure does not configure the compiled R to use the Accelerate (vecLib) framework? Any suggestions would be very welcome. Thanks, Anirban sessionInfo() R version 4.0.3 Patched (2020-11-20 r79454) Platform: x86_64-apple-darwin20.1.0 (64-bit) Running under: macOS Big Sur 10.16 Matrix products: default LAPACK: /Library/Frameworks/R.framework/Versions/4.0/Resources/lib/libRlapack.dylib locale: [1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8 attached base packages: [1] stats graphics grDevices utils datasets methods base loaded via a namespace (and not attached): [1] compiler_4.0.3 tools_4.0.3 _______________________________________________ R-SIG-Mac mailing list R-SIG-Mac@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-mac
