The CMake and autotools (configure/make) scripts supplied with BOUT++ should be able to automatically find and configure BOUT++ in most cases. Where a complex configuration is desired, for example including many dependencies (esp. complex dependencies like PETSc), or compiling for GPUs, configuration can be quite complex.
The files in this directory are intended to be convenient shortcuts for configuration on particular machines. Where there are many scripts, these are put into sub-directories (e.g. "cori" and "lassen").
Scripts which set up the environment, for example loading and unloading
modules, start with setup or setup-env. These are typically modifying
shell environments and so should be invoked with source.
The wrappers around CMake (or configure) start with config or config-bout.
These are shell scripts which can be run without source.