How to compile a program

Table of Contents

• Compile the Core Library
• Compile the Basic User Module

This tutorial assumes that you have installed MoFEM with developer version using the script provided in Installation. And therefore, you probably have paths for the source code and the binary files (e.g. for RelWithDebInfo – Release with Debug info – build type) of the Core Library and the Basic User Module as follows

• Core Library
  • Source code: $HOME/mofem_install/mofem-cephas/
  • Binary files (build directory): $HOME/mofem_install/mofem-cephas/core-build-RelWithDebInfo-abcd1234
• Basic User Module
  • Source code: $HOME/mofem_install/mofem-cephas/mofem/users_modules/
  • Binary files (build directory): $HOME/mofem_install/mofem-cephas/mofem/users_modules/um-build-RelWithDebInfo-abcd1234

Compile the Core Library

You will need to compile the Core Library if you change any file related to C++ source codes that are located in

$HOME/mofem_install/mofem-cephas/
$HOME/mofem_install/mofem-cephas/mofem/

You compile the Core Library by running the following command lines

cd $HOME/mofem_install/mofem-cephas/core-build-RelWithDebInfo-abcd1234
make -j4
make -j4 install

where -j4 indicates you will use four processors to compile the codes.

Note

Remember that compiling Core Library requires both make and make install

Compile the Basic User Module

You will need to compile the Basic User Module if you change any file related to C++ source codes that are located in

$HOME/mofem_install/mofem-cephas/mofem/users_modules/

The changes include those when you modify codes for Basic User Module or when you add a new module of your own and change its source code.

You can compile both the Basic User Module and your own module (if any) by running the following command lines

cd $HOME/mofem_install/mofem-cephas/mofem/users_modules/um-build-RelWithDebInfo-abcd1234
make -j4

Note

You only need to compile Core Library before compiling Basic User Module if you have changes in Core Library. If you only have changes in user modules (either the Basic one or the one added by yourself), you just need to compile the Basic User Module.