Approvals: 0/1The Previously approved version (2024/07/22 09:24) is available.
From Serial to Parallel Jobs
Parallel computing can significantly enhance the performance of computational tasks by distributing work across multiple processors. Here are two primary methods for parallel programming:
Message Passing Interface (MPI)
The Message Passing Interface (MPI) is a standardized protocol for communication in distributed computing systems. MPI is designed for scenarios where multiple processes are executed concurrently, working together on a shared problem by exchanging data.
* MPI Documentation:
Key Points: - MPI implementations include MPICH, Open MPI, and others. - Common programming languages for MPI include Fortran, C, and C++. - There are also MPI bindings for other languages such as Perl, Python, R, Ruby, Java, and CL. - The parallel version of Rstat, known as Rmpi, is available on the cluster. - Matlab provides a parallel computing toolbox with MPI support. - Maple offers grid computing capabilities with MPI protocol support.
Open Multi-Processing (OpenMP)
OpenMP is designed for multi-platform shared memory multiprocessing, offering compiler directives, library routines, and environment variables to manage parallel execution in C, C++, and Fortran.
Key Features: - OpenMP uses a combination of serial and parallel sections within the code. - Initially, a serial thread is used, which then spawns several parallel threads. - Unlike MPI, OpenMP threads share the same memory space, eliminating the need for message passing between threads.
Further Information and Training
For more information and training on parallel computing, please visit the VSC Website. The VSC Team regularly organizes courses for both beginners and intermediate users in high-performance computing.
If you have specific questions about your code that cannot be addressed in these courses, you can directly contact our team for personalized assistance.