Analytical Continuation

Prerequisites: HPC libraries and tools

Please make sure to have the following third-party software installed and available:

• Third-Party Dependencies
  • Eigen3 >= 3.4.0
  • MPI
  • HDF5 >= 1.10.0
  • BLAS
  • CMake >= 3.18
  • GMP

These packages are the same as the ones required for the mbpt code, except for GMP. GMP is a multiple-precision floating-point library. If it is installed but your compiler does not find it automatically, try setting the environment variable GMP_DIR to specify the directory where cmake should look for gmp.h and the gmp libraries.

Download and Build

The following instructions will download and build the Analytical Continuation package (replace /path/to/install/directory with the directory where you’d like to install the code):

  git clone https://github.com/Green-Phys/green-ac.git
  cmake -S green-ac -B green-ac-build                     \
          -DCMAKE_INSTALL_PREFIX=/path/to/install/directory \
          -DCMAKE_BUILD_TYPE=Release
  cmake --build green-ac-build -j 4 
  cmake --build green-ac-build -t test install

If dependencies are installed under a non-default prefix, pass it during configuration, for example -DCMAKE_PREFIX_PATH="$CONDA_PREFIX" for an active Conda environment. This gives CMake one common search root for MPI, HDF5, BLAS, Eigen, and GMP. For a package-specific override, the following pointers may help:

• For Eigen: specify -DEigen3_DIR=/path/to/lib/cmake/eigen3, pointing to the directory that contains Eigen3Config.cmake
• For MPI: Follow the instructions on cmake with mpi
• For BLAS: Follow the instructions on cmake with BLAS
• For HDF5: Follow the instructions on cmake with HDF5
• For GMP: specify in the environment variable GMP_DIR: GMP_DIR=/path/to/gmp/installation