Installation

Instructions for installing both PETSc and PetIGA on Bridges2 cluster are provided here.

PETSc

  1. Download PETSc

  2. Load required modules on the cluster:

    module load gcc/10.2.0 openmpi/4.0.5-gcc10.2.0
module load mkl

  3. Set optimization flags. Tune the optimization flags as per your requirements.:

    OPTFLAGS="-O3"

  4. Configure PETSc on bridges2 with the appropriate options. Below is an example:

    ./configure --with-cc=mpiicc --with-cxx=mpiicpc --with-fc=mpiifort --download-sowing-cc=mpiicc --download-sowing-cxx=mpiicpc --with-scalar-type=real --with-shared-libraries=0 --with-debugging=no --with-blas-lapack-dir=$MKLROOT --with-scalapack-lib="-L$MKLROOT/lib/intel64 -lmkl_scalapack_lp64 -lmkl_blacs_openmpi_lp64" --with-scalapack-include=$MKLROOT/include COPTFLAGS="$OPTFLAGS" CXXOPTFLAGS="$OPTFLAGS" FOPTFLAGS="$OPTFLAGS" --download-metis --download-parmetis --download-spooles --download-superlu_dist=yes PETSC_ARCH=<arch_name>

  5. Compile PETSc: Once the configuration is complete, follow the output instructions to finish compiling the library.

  6. Set environment variables: Save the environment variables PETSC_DIR and PETSC_ARCH into your .bashrc so that they are always set in your environment.

  7. Verify installation:

    make PETSC_DIR=<path_to_petsc> PETSC_ARCH=<arch_name> check

PetIGA

  1. Download PetIGA

  2. Set the PETIGA_DIR environment variable to the correctly downloaded location and change to the appropriate directory:

    cd $PETIGA_DIR

  3. Compile PetIGA:

    make PETSC_DIR=<path_to_petsc> PETSC_ARCH=<arch_name> all

  4. Verify installation:

    make PETSC_DIR=<path_to_petsc> PETSC_ARCH=<arch_name> test