Ludovic Courtès <ludovic.cour...@inria.fr> writes: > Hello! > There are two cases: > > 1. Packages that depend on both ‘lapack’ and ‘openblas’. This is > almost always a mistake because ‘openblas’ provides the same > interfaces as ‘lapack’, only with a more efficient implementation. > > 2. Packages that depend on ‘lapack’ only: for the same reason, they > should depend on ‘openblas’ instead.
My understanding is that Julia 1.6 (already released) requires 64-bit BLAS, and openblas-ilp64 should do the trick. There are scenarios where reference BLAS is more stable and/or reproducible than optimized BLAS libraries. Sometimes its lack of knowledge of OpenBLAS and/or a numerical issue. (cf. GNU R's discussion of which BLAS to use.)
