OpenMP for Fortran OpenMP Directive Syntax of OpenMP compiler directive for Fortran: !$OMP DirectiveName Optional_CLAUSES... ... ... Program statements between the !$OMP lines ... are executed in parallel by all threads ... !$OMP END DirectiveName Pr…
最近写水动力的程序,体系太大,必须用并行才能算的动,无奈只好找了并行编程的资料学习了.我想我没有必要在博客里开一个什么并行编程的教程之类,因为网上到处都是,我就随手记点重要的笔记吧.这里主要是openmp的~ 1 临界与归约 在涉及到openmp的并行时,最需要注意的就是被并行的区域中的公共变量,对于需要reduce的变量,尤其要注意,比如这段代码: program main implicit none include 'omp_lib.h' integer N,M,i real(kind=…
PROGRAM parallel_01 USE omp_lib IMPLICIT NONE INTEGER :: i,j INTEGER() :: time_begin, time_end, time_rate REAL, DIMENSION(:,:) :: f, g REAL :: k WRITE(*,*) '开始进行串行计算' !>@ .通过串行计算获得两个矩阵的初始化计算 CALL system_clock(time_begin,time_rate) DO i = , DO j = , f…
原文:http://blog.csdn.net/gengshenghong/article/details/7000979 schedule的语法为: schedule(kind, [chunk_size]) kind: • static: Iterations are divided into chunks of size chunk_size. Chunks are assigned to threads in the team in round-robin fashion in order…
Abstract: Paralution is an open source library for sparse iterative methods with special focus on multi-core and accelerator technology such as GPUs. It has a simple fortran interface and not well designed for multiple right-hand-sides. Here we defin…
Beginning OpenMP OpenMP provides a straight-forward interface to write software that can use multiple cores of a computer. Using OpenMP you can write code that uses all of the cores in a multicore computer, and that will run faster as more cores beco…
以下例子来自https://computing.llnl.gov/tutorials/openMP/exercise.html网站 一.打印线程(Hello world) C****************************************************************************** C FILE: omp_hello.f C DESCRIPTION: C OpenMP Example - Hello World - Fortran Version…
什么是OpenMP?“OpenMP (Open Multi-Processing) is an application programming interface (API) that supports multi-platform shared memory multiprocessing programming in C, C++ and Fortran on many architectures, including Unix and Microsoft Windows platforms…
