The Client/Server messaging library (CSlib) is a lightweight implementation of the client/server model suitable for coupling two scientific applications runnning in serial or parallel.

• Quick tour
• Introduction
• Features
• Client/server model of communication
• Use cases for the CSlib
• Running client/server apps
• Build the CSlib
• Test programs
• Build the test apps
• Run the test apps
• API for the CSlib
  • language details
  • create and destroy the library
  • exchange messages
  • query statistics
• More Python info
• Error messages

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The CSlib is an open-source code, distributed freely under the terms of the modified Berkeley Software Distribution (BSD) License. See this page for more details. It was developed at Sandia National Laboratories, a US Department of Energy facility, for use in coupling scientific applications running on desktop machines to large supercomputers. Funding for the CSlib came from DOE's Office of Advanced Scientific Computing Program (OASCR) under the auspices of its Exascale Computing Program (ECP).

The author of the CSlib is Steve Plimpton, who can be contacted at sjplimp at sandia.gov.

Additional info is available at these links:

• CSlib website = documentation and tarball downloads
• GitHub site = clone or report bugs, pull requests, etc
• Questions, bugs, suggestions: email to sjplimp at sandia.gov or post to GitHub

IMPORTANT NOTE: the GitHub site will not be stood up until ~Aug 2018.