MPI mpirun execvp错误:没有这样的文件或目录 [英] MPI mpirun execvp error: no such file or directory

问题描述

我正在尝试使用MPI运行c ++代码(BCparallel.cpp)；使用以下代码编译代码:

I'm trying to run a c++ code (BCparallel.cpp) using MPI; compiling the code with:

 mpic++ BCparallel.cpp -o BCparallel

很好，但是当我通过那行

is well succeed, but when I pass the line

 mpiexec -np 4 BCparallel file.txt

返回

[proxy:0:0@lps-Inspiron-5537] HYDU_create_process 
(utils/launch/launch.c:75): execvp error on file BCparallel (No such 
file or directory)
[proxy:0:0@lps-Inspiron-5537] HYDU_create_process 
(utils/launch/launch.c:75): execvp error on file BCparallel (No such 
file or directory)
[proxy:0:0@lps-Inspiron-5537] HYDU_create_process 
(utils/launch/launch.c:75): execvp error on file BCparallel (No such 
file or directory)
[proxy:0:0@lps-Inspiron-5537] HYDU_create_process 
(utils/launch/launch.c:75): execvp error on file BCparallel (No such 
file or directory)

我在做什么错了?

推荐答案

该程序不在您的$PATH中，并且您未指定该程序所在的路径.试试这个:

The program is not in your $PATH and you have not specified the path where it exists. Try this:

mpiexec -np 4 ./BCparallel file.txt

这与任何其他程序相同，如果不在$PATH中，则必须使用路径进行限定.这样可以防止您在当前目录中意外运行名为ls的程序.

This is the same as for any other program, which if it is not in $PATH must be qualified with a path. This protects you from accidentally running a program called ls (for example) in your current directory.

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