Run the provided test suites to ensure the code was compiled and installed correctly. or a guide on writing your first MCNP input file User's Manual Code Version 6.2 - MCNP
. It is not available for direct public download from a "top" list or standard repository. Los Alamos National Laboratory (.gov) How to Obtain MCNP 6.2
Released officially in February 2018, this version introduced significant improvements over earlier versions: