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MPI Presentation
The document discusses parallel programming using the Message Passing Interface (MPI). It provides an overview of MPI, including what MPI is, common implementations like OpenMPI, the general MPI API, point-to-point and collective communication functions, and how to perform basic operations like send, receive, broadcast and reduce. It also covers MPI concepts like communicators, blocking vs non-blocking communication, and references additional resources for learning more about MPI programming.
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In this document
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Overview of the presentation on MPI, its outline, and significance.
Definition and purpose of MPI; a message passing API and library for programming clusters.
Explores different implementations of MPI, connectivity, and fault tolerance options.
Introduction to OpenMPI, its features, and installation guide.
Fundamental concepts of MPI functions, data types, and communication types.
Initialization and termination of MPI; example of a basic 'hello world' program.
Fundamentals of point-to-point communication; definitions and blocking communications.
Clarification of send/receive operations, blocking vs non-blocking, and complexities.
Collective communication functions like MPI_Barrier, MPI_Bcast, and their operational demonstrations.
Operations such as MPI_Gather, MPI_Scatter, and equivalents; additional collective functionalities.
Concept of communicators in MPI, grouping processors under MPI_COMM_WORLD.
Advanced MPI features including parallel I/O and one-sided communications.
References for further reading and closing remarks.