hello world mpi并行,线程数错误?
本帖最后由 feishay 于 2016-6-29 09:37 编辑刚起步学习mpi并行,运行了hello world并行例子,我的电脑是4核的,运行结果又问题,请坛友们帮我看看,问题出在哪,谢谢啦!
1. 程序源代码如下:
program main
include 'mpif.h'
integer ierr, myid, numprocs
call MPI_INIT(ierr)
call MPI_COMM_RANK( MPI_COMM_WORLD, myid, ierr)
call MPI_COMM_SIZE( MPI_COMM_WORLD, numprocs, ierr)
print *, 'I am', myid, 'of', numprocs
call MPI_FINALIZE(ierr)
pause
end
2. 输出结果如下:
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MPI 用于 多节点并行,也就是多台机器并行。 OpenMP 才是单机多核并行。
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