Contributed by Tabrez Ali 22 January 2015 This is part of a longer instructions to install Defmod but walks you through a PETSc install if you want to compile from source. This should also work for any Linux machine. === Instructions for installing Defmod on Amazon's Elastic Compute Cloud (EC2): === 1. Launch an Ubuntu (Server, 14.04 LTS) based instance (e.g., t2.micro) and login using your key: {{{ ssh -X -i "key" ubuntu@xxx.xxx.xxx.xxx }}} 2. Fix '/etc/hosts' (keeps MPICH happy): {{{ sudo sh -c 'echo 127.0.1.1 `hostname` >> /etc/hosts' }}} 3. Download GNU compilers and other required tools/utilities: {{{ sudo apt-get update sudo apt-get upgrade sudo apt-get install gcc gfortran libblas-dev liblapack-dev cmake mercurial }}} 4. Download, configure and install PETSc with METIS: {{{ wget http://ftp.mcs.anl.gov/pub/petsc/release-snapshots/petsc-3.6.3.tar.gz tar -xzf petsc-3.6.3.tar.gz cd petsc-3.6.3 export PETSC_DIR=`pwd` PETSC_ARCH=arch-linux2-c-opt ./configure --with-cc=gcc --with-fc=gfortran --download-mpich --download-metis --with-debugging=0 make all export PATH=$PATH:$PETSC_DIR/$PETSC_ARCH/bin }}} '''Note:''' If CMake complains about missing C++ compiler during the configure step above, then edit {{{ $PETSC_DIR/$PETSC_ARCH/externalpackages/metis-5.1.0-p1/CMakeLists.txt and change "project(METIS) }}} to {{{ project(METIS C) }}}