The On Ramp/Level 1/Solve (Compressible)

Overview

This page walks you through the process of configuring, compiling, and identifying the correct executable for running compressible PHASTA simulations. These steps assume you have generated and partitioned a mesh using Prepping the Grid for Chef and The On Ramp/Level 1/Partition.

Building PHASTA for Compressible Simulations

Use the following script to configure and compile PHASTA with compressible physics enabled. This ensures that both compressible and incompressible functionalities are available.

#!/bin/bash

Target=Example_Build
mkdir Example_Build
rm -r $Target/*
cd $Target

export PKG_CONFIG_PATH=/users/skinnerr/tools/git-petsc/build_ompi210_gnu63/lib/pkgconfig/

cmake \
-DCMAKE_C_COMPILER=gcc \
-DCMAKE_CXX_COMPILER=g++ \
-DCMAKE_Fortran_COMPILER=gfortran \
-DCMAKE_BUILD_TYPE=Debug \
-DPHASTA_INCOMPRESSIBLE=ON \
-DPHASTA_COMPRESSIBLE=ON \
-DPHASTA_USE_LESLIB=ON \
-DLESLIB=/users/matthb2/libles1.5/libles-debianjessie-gcc-ompi.a \
-DCASES=/home/mrasquin/develop-phasta/phastaChefTests \
-DPHASTA_TESTING=OFF \
../../phasta-next/

make -j8
echo "Target: $Target"
date

After compilation, confirm that the compressible PHASTA executable has been built by locating:

Example_Build/bin/phastaC.exe

This is the executable specifically for compressible simulations. You can also see `phastaIC.exe` for incompressible cases.

Creating the Executable

Create the runPHASTA.sh bash script. Where you see <pathtoBuildDir> include your path to your build directory where you retrieved the input.config file.

#!/bin/bash

rm $1-procs_case/doubleRun-check

#export PHASTA_CONFIG=/users/jopa6460/git-phasta/build_phasta/Example_Build
export PHASTA_CONFIG=<pathtoBuildDir>

mpirun -np $1 $PHASTA_CONFIG/bin/phastaC.exe 2>&1 | tee $1.out

Remember to turn the file into an executable as was done for the build script above. Hint: chmod +x command.

This completes the setup needed to launch compressible simulations.