Compiling INMOST with PETSc on Linux

INMOST requires PETSc version 3.5.0 or higher.

Compiling PETSc

PETSc installer can also install a lot of other dependencies for you. The following instructions assume that MPI is already installed and functional. You can use option --download-openmpi to install Open MPI with PETSc.

These steps can take some time.

cd "$INMOST_ROOT"
wget http://ftp.mcs.anl.gov/pub/petsc/release-snapshots/petsc-lite-3.5.2.tar.gz
tar zxf petsc-3.5.2.tar.gz
rm -f petsc-3.5.2.tar.gz
cd petsc-3.5.2
export PETSC_DIR="`pwd`"
export PETSC_ARCH=linux-gnu-debug
./configure --download-f2cblaslapack --with-mpi=1
make all

You may as well compile optimized version of PETSc for timing and production runs.

PETSC_ARCH=linux-gnu-opt ./configure --download-f2cblaslapack --with-mpi=1 --with-debugging=0 -CFLAGS="-O2" -CXXFLAGS="-O2"
make PETSC_ARCH=linux-gnu-opt all

Once you are ready to switch to optimized version run

export PETSC_ARCH=linux-gnu-opt

and reconfigure and recompile INMOST.

Compiling INMOST with PETSc support

Make sure the environment variables PETSC_DIR and PETSC_ARCH are initialized correctly. CMake will detect your PETSc installation if both variables are present.

cd "$INMOST_ROOT"
mkdir -p INMOST-build
cd INMOST-build
cmake -DUSE_SOLVER_PETSC=ON ../INMOST-master