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FortranM is a computer language for modular parallel programming.[1][2] Its syntax is based on Fortran but has additional elements such as channels and ports for communication between processes.[3]

The language was designed by K. Mani Chandy's group at Caltech, along with an Argonne national labs team. [3] The compiler for the language is freely available from Argonne labs.[3]

In FortranM processes communicate by sending and receiving messages on channels.[3] Processes and channels can be dynamically created, but programs remain deterministic.


  1. ^ Parallel and Distributed Computing Handbook by Albert Y. Zomaya 1995 ISBN 0-07-073020-2 page 886
  2. ^ Patterns for Parallel Software Design by Jorge Luis Ortega-Arjona 2010 ISBN 0-470-69734-2 page 22
  3. ^ a b c d Argonne national labs FortranM