Optimized BLAS (linear algebra) library (shared lib, 64bit, serial)

 OpenBLAS is an optimized BLAS library based on GotoBLAS2 1.13 BSD version.
 .
 On amd64, arm64, i386, ppc64el and s390x, all kernels are included in the
 library and the one matching best your processor is selected at runtime.
 .
 On other architectures, for maximum performance, you may want to rebuild
 OpenBLAS locally, see the section: “Building an optimized OpenBLAS package for
 your machine” in README.Debian.
 .
 Configuration: USE_THREAD=0 USE_OPENMP=0 INTERFACE64=1