A users` guide to PSTSWM

The Parallel Spectral Transform Shallow Water Model (PSTSWM) is a code developed to evaluate parallel algorithms for the spectral transform method in global atmospheric circulation models. PSTSWM is also useful for benchmarking parallel platforms that use the message-passing parallel programming paradigm. In this report, we describe how to obtain, compile, and use the code. We also discuss what is involved in porting the code to a new parallel platform.