FOSS - Free Open Source Software. GNU Compiler Collection (GCC) based compiler toolchain, including OpenMPI for MPI support, OpenBLAS (BLAS and LAPACK support), FFTW and ScaLAPACK.

Support for FlexiBLAS continues to increase. There are so many linear algebra libraries that a new library needed to be created. FlexiBLAS is not really a library but a wrapper to BLAS and LAPACK. The author has a nice video introduction and has done much work clean up the calling interfaces for BLAS and LAPACK. You can code to one standard and swap dynamicly without re-compiling.

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