SCOTCH is a software package for graph and mesh/hypergraph partitioning, graph clustering, and sparse matrix ordering.
To see what versions of SCOTCH are available type
module avail scotch
To see what other modules are needed, what commands are available and how to get additional help type
module help scotch
To use SCOTCH, include a command like this in your batch script or interactive session to load the scotch module:
module load scotch
Be sure you also load any other modules needed, as listed by the
module help scotch command.