Interface to MRCC program package (www.mrcc.hu, free for academic use) which is focused on coupled clusters calculation and includes a module allowing arbitrary-level CC calculations.

Version compatibility

The interafce had been updated to be compatible with the 2020 version of MRCC. Canonical methods supported by the interface have been tested, local CC calculations have been disabled until the interface is updated.

Parallelization

When parallel execution is requested, OpenMP is used.