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    The Fftw3-Installation at HLRN

    The Fftw3-Installation at HLRN

    Juli 26, 2020

    Download:

    fftw3 - downloads

    Installation path:

    /sw/numerics/fftw3/< mpi-version >/<compiler-version>/3.3.8/skl, untar and rename/move the directory to build

    configure:  

    configure --help reveals the most important switches:

    • CC, FC, MPICC etc. to define the compiler
    • CFLAGS as slot for compiler options, do not forget -Wl,-rpath=$LD_RUN_PATH to burn the path to compiler libraries. intel/18.0.3 does not have the LD_RUN_PATH. The path the the fftw3-objects is burned in automatically by configure/make.
    • --enable-shared to build alos shared libraries
    • --enable-single, --enable-long-double to build for different numerical accuracy.
    • --enable-omp, --enable-threads, --enable-mpi
    , multiple selections available,
    {"serverDuration": 10, "requestCorrelationId": "059c55c0d62d4fe685779a8d0872576d"}