topic Re:mpi shared memory problem in Intel® MPI Library

mpi shared memory problem

Dmitrii_rus — Mon, 22 Nov 2021 18:21:15 GMT

I have some problems with Intel mpi , so I wrote the dumbest program:

#include "mpi.h"
#include <iostream>
int main(int argc, char** argv)
{
std::cout << "prog_start \n";
MPI_Init(&argc, &argv);
std::cout << "prog_body \n";
MPI_Finalize();
std::cout << "prog_end \n";
return 0;
}

and configured with VS2019.

If I run it through VS2019, then everything is in order and works as it should. But if i run through the console

(c:\ ...\mpiexec.exe -n 2 -print-all-exicodes c:\<path_to_file>\file.exe )

then i get this:

Re: mpi shared memory problem

VarshaS_Intel — Tue, 23 Nov 2021 11:32:29 GMT

Hi,

Thanks for reaching out to us.

We tried to reproduce your issue, but we were able to get the expected results. Below are the configurations and screenshots of the results.

Operating System: Windows 10

OneAPI version - 2021.4

Microsoft Visual Studio - 16.10.3

Could you please let us know the OS details, Intel MPI version, and Microsoft Visual Studio version you are using?

Thanks & Regards

Varsha

Re: mpi shared memory problem

Dmitrii_rus — Tue, 23 Nov 2021 11:32:38 GMT

I figured out that VS automatically launches the file "C: \ Program Files (x86) \ Intel \ oneAPI \ setvars.bat". If in one cmd session (with admin privileges !!!) you first run this file, then the program, then everything works. however, if you do this in cmd without admin privileges, then nothing is displayed.

Operating System: Windows 10

OneAPI Version 2021.4 Build 20210831

Microsoft Visual Studio - Version 16.11.5

Re:mpi shared memory problem

VarshaS_Intel — Wed, 24 Nov 2021 11:56:41 GMT

Hi,

Yes we need to initialize the Intel oneAPI environment using the script file(setvars.sh). Glad to know that your issue is resolved. Could please let us know if we can close this thread?

Thanks & Regards

Varsha

Re:mpi shared memory problem

VarshaS_Intel — Wed, 01 Dec 2021 12:00:17 GMT

Hi,

We have not heard back from you. From the screenshot provided by you, we can see you are able to get the expected results. So, we are going ahead and closing this thread. If you need further assistance, please post a new question.

Thanks & Regards

Varsha