NetCDF is a set of software libraries and self-describing, machine-independent data formats that support the creation, access, and sharing of array-oriented scientific data.
Load the appropriate modules on bionic and/or use the system version on focal. Note that in newer versions of the NetCDF software, the C library and Fortran interface are distributed as separate packages with separate version numbers. The Fortran interface depends on the C interface.
The 'compilertype' needs to match the compiler family you want to use, eg 'intel' for Intel compilers. Once you have loaded the modules, the nc-config and nf-config commands will tell you how to link the library.
There are actually two libraries, libnetcdf and libnetcdff. The latter is the Fortran interface. They each have their own independent version numbers. Query with n{c,f}-config --version (the version numbers of the .so files do not match the declared versions!). The libraries for our bionic image were - mistakenly in my view - packaged together despite them not sharing a version number.
To build this you first need to build szip, then hdf5, and then netcdf. Although Ubuntu has its own copy of these libraries, it doesn't have the Fortran interfaces built for other compilers than gfortran. Our versions are also newer.
module purge #module add szlib # on 18.04 use szlib2 system package module add hdf5/gnu # unpack C interface time ./configure --prefix=/usr/local/shared/ubuntu-18.04/x86_64/netcdf/gnu/4.6.1 --enable-netcdf-4 # 26s time make # 1m17s time make check #6m5s FAIL: tst_remote3; see ncdap_test/test-suite.log time sudo make install #2s # create environment module for the C interface before proceeding </pre> <pre> # unpack Fortran interface, set environment to see C interface module add hdf5/gnu netcdf/gnu time ./configure --prefix=/usr/local/shared/ubuntu-20.04/x86_64/netcdff/gnu/4.5.4 #25s time make #55s time make check #1m29 time sudo make install #1s
Now clean up everything, environment included:
cd .. find . -mindepth 0 -maxdepth 1 -type d -name 'netcdf*' -delete # re-extract the tarballs
module purge # module add szlib module add icc/64/2022/0/1 module add hdf5/intel cd netcdf-c-4.8.1 time CC=icc FC=ifort ./configure --prefix=/usr/local/shared/ubuntu-20.04/x86_64/netcdf/intel/4.8.1 --enable-netcdf-4 #20s time make #3m5s time make check #7m55 time sudo make install #2s # unpack Fortran interface, build+install module file for C interface and set environment to see intel C interface module add netcdf/intel time CC=icc FC=ifort ./configure --prefix=/usr/local/shared/ubuntu-20.04/x86_64/netcdff/intel/4.5.4 --enable-netcdf-4 #52s time make #45s time make check #1m36s time sudo make install #2s
