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episode-13-build-freefem.md

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[Environment Setup 13] Build FreeFEM finite element solver

  • Install required prerequisites

$ sudo apt-get install cpp freeglut3-dev g++ gcc gfortran m4 make patch pkg-config wget python unzip liblapack-dev libhdf5-dev libgsl-dev autoconf automake autotools-dev bison flex gdb git cmake

  • Install an MPI implementation for building the parallel version

$ sudo apt-get install mpich

  • Make a new directory for FreeFEM and navigate to it

$ mkdir FreeFEM

$ cd FreeFEM/

  • Clone the source code repository and navigate to the downloaded folder

$ git clone https://github.com/FreeFem/FreeFem-sources.git $ cd FreeFem-sources/

  • Generate the configure scripts for GNU Make

$ autoreconf -i

  • Run the configure script to specify build options, including the location to install the program

$ ./configure --enable-download --enable-optim --prefix=/home/tuxriders/FreeFEM/freefem-install

  • Download the source code of 3rd-party libraries

$ ./3rdparty/getall -a

  • Build PETSc and all the 3rd-party libraries

$ cd 3rdparty/ff-petsc/

$ make petsc-slepc

  • Navigate back and reconfigure the build

$ cd -

$ ./reconfigure

  • Build the source code of FreeFEM using 4 parallel processes

$ make -j4

  • Check the build by running some examples

$ make -j2 check

  • Install the built binaries to the specified directory

$ make install

  • Navigate to the installation location and run FreeFEM

$ cd ../freefem-install/

$ cd bin/

$ ./FreeFem++

  • Navigate to the home directory and add FreeFEM to the PATH variable in the .bashrc file (adding export PATH=$PATH:/home/tuxriders/FreeFEM/freefem-install/bin in this case)

$ cd

$ nano .bashrc