RMA Windows
Christopher Cameron, Steve Lantz (original)
Cornell Center for Advanced Computing
Revisions: 5/2022, 4/2013 (original)
This topic introduces RMA windows and explains how to use MPI calls to create — and later free — an RMA window.
Objectives
After you complete this topic, you should be able to:
- Name the MPI function that all processes must call before RMA communication can begin
- Explain the window attributes needed for RMA communication
- Demonstrate freeing a window
Prerequisites
- A basic knowledge of parallel programming and MPI. Information on these prerequisites can be found in other topics (Parallel Programming Concepts and High-Performance Computing, MPI Basics).
- Ability to program in a high-level language such as Fortran or C.
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Cornell University
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Center for Advanced Computing
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Access Statement
CVW material development is supported by NSF OAC awards 1854828, 2321040, 2323116 (UT Austin) and 2005506 (Indiana University)
CVW material development is supported by NSF OAC awards 1854828, 2321040, 2323116 (UT Austin) and 2005506 (Indiana University)