8.1 Downloading and using the code and tutorial

One can use the ALF package downloaded automatically by the Python script in the first part of this tutorial, or manually, by typing

git clone https://github.com/ALF-QMC/ALF.git

in a shell.

The necessary environment variables and the directives for compiling the code are set by the script configure.sh:

source configure.sh GNU noMPI

followed by the command make. Details and further options are described in the package’s documentation found in its repository.

A workflow you can adopt for solving the exercises — or indeed using ALF in general — is the following:

1. Compile the modified Hamiltonian module, for instance:
   make

2. Create a data directory with the content of Start:
   cp -r ./Scripts_and_Parameters_files/Start ./Run && cd ./Run/

3. Run its executable, e.g., serially:
   $ALF_DIR/Prog/ALF.out

4. Perform default analyses^[1]:
   $ALF_DIR/Analysis/ana.out *

The structure of the data files and details on the analysis output can be found in ALF’s documentation.