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SZIP support not working #1989

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jedwards4b opened this issue Mar 15, 2024 · 1 comment
Open

SZIP support not working #1989

jedwards4b opened this issue Mar 15, 2024 · 1 comment
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@jedwards4b
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the result was

    # Features
    --------
    PnetCDF Support:        yes
    SZIP Write Support:     no
    Parallel Filters:       yes
    NetCDF/HDF5 Support:    yes
    NetCDF/HDF5 Par I/O:    yes
    NetCDF Integration:     no
    PIO Logging:            no
    MPIEXEC:                mpiexec
    Fortran:                yes

    -- Configuring done (12.1s)
    -- Generating done (0.2s)
    -- Build files have been written to: /home/maxd/AOCC/Build/NCAR_ParallelIO/build

No PIO Logging makes sense; I'm not sure what "NetCDF
Integration" is; but I'm most concerned about the "no"
for "SZIP Write Support" particularly because CMake
appears to find it:

    -- Found HDF5_C: /home/maxd/AOCC/opt/amd/lib/phdf5-1.14.3/lib/libhdf5.a
    -- Found LIBZ: /home/maxd/AOCC/opt/amd/lib/zlib-1.3.1/lib/libz.a
    -- Checking whether HDF5 has SZIP support
    -- Checking whether HDF5 has SZIP support - yes
    -- Found SZIP: /home/maxd/AOCC/opt/amd/lib/szip-2.1.1/lib/libsz.a

(from earlier in the log file). Moreover,

    -- Performing Test HAVE_SZIP_WRITE
    -- Performing Test HAVE_SZIP_WRITE - Success

so I don't understand the configuration summary note

@jedwards4b jedwards4b self-assigned this Mar 15, 2024
@edwardhartnett
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I'm not sure but perhaps this is because netcdf-c also needs szip write support, so even if szip is present, PIO cannot use szip write support, because netcdf-c does not support it. Look in the build summary of netcdf-c...

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