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.