Message Passing Interface
Message Passing Interface (MPI) is a standardized and portable message-passing system designed for parallel computing, enabling communication between processes in distributed-memory systems. It provides a library of routines for tasks like point-to-point communication, collective operations, and process management, widely used in high-performance computing (HPC) for scientific simulations and data-intensive applications. MPI implementations, such as Open MPI and MPICH, allow programs to run efficiently on clusters, supercomputers, and multi-core systems.
Developers should learn MPI when working on parallel computing projects that require efficient data exchange across distributed nodes, such as in scientific research, engineering simulations, or large-scale data processing. It is essential for HPC applications where tasks need to be split across multiple processors or machines to reduce computation time, making it a key skill for roles in academia, national labs, and industries like aerospace or climate modeling.