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File README.HPC.SUSE of Package openblas
openSUSE specific packaging =========================== OpenBLAS provides optimized implementations of BLAS and LAPACK. openSUSE provides two variants: * With OpenMP support * With threading support The serial variant has been dropped. To run a program which requires the serial version (ie. because it is multi-threaded itself), either specify the environment variable OMP_NUM_THREADS=1 or place a call to void openblas_set_num_threads(int num_threads); in your program to limit the number of threads this library uses to 1. On x86 systems OpenBLAS uses dynamic architectures support, so it contains all CPU-related optimizations. How to switch between the various BLAS/LAPACK implementations ============================================================= The openmp and threaded variants may be installed in parallel. To select which one to use please use the 'modules' command.
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