mpiexec hang after program exit

Yongjun_L_ — Wed, 12 Nov 2014 02:11:30 GMT

Out product includes GUI and engine parts. Intel MPI 4.1 was used in engine code. GUI will can engine through mpiexec. Everything works fine on Windows 7 and Windows server 2008. When we run the product on Windows 8 and Windows server 2012, we met some problem.

The code to start engine looks like CreateProcess( NULL, "mpiexec - n 2 engine", NULL, ........) . After engine exit, mpiexec still hang in memory and cannot exit. This will cause GUI hang. If we run the engine form command, mpiexec can exit after engine exit.

I upgraded MPI from 4.1 to 5.0 and wrote a simple code to test on Windows 8. I ran the code with command.

mpiexec -n 2 mysample.exe

This time, mpiexec cannot exit after mysample.exe exit.

Yongjun

What happens if you run with

James_T_Intel — Mon, 05 Jan 2015 20:26:49 GMT

What happens if you run with -localonly?

The problem was fixed by

Yongjun_L_ — Thu, 19 Oct 2017 01:05:37 GMT

The problem was fixed by adding -localroot

topic The problem was fixed by in Intel® MPI Library

mpiexec hang after program exit

What happens if you run with

The problem was fixed by