mpiexec hangs for 5 seconds when launching notepad

[adambruss]

I'm running Intel(R) MPI Library for Windows* OS, Version 4.0 Update 3 Build 8/24/2011 3:07:12 PM on Windows 8 64bit. Mpiexec takes 5 seconds to launch notepad. I'm trying to figure out where the time is being spent. The computer this happens on is an Intel Core i7 3.20 GHz with 16 GB of RAM. This test runs mpiexec when minimal CPU resources are being used.

The command line: mpiexec -verbose -localonly notepad

I've marked below where the hang happens in the log.

.......moving 'launch' command to the wait_list.
....../smpd_state_writing_cmd
...../smpd_handle_op_write
.....sock_waiting for the next event.
.....\SMPDU_Sock_wait

HANGS FOR 5 SECONDS FOR NO APPARENT REASON.

notepad finally launches and closing it shuts down mpiexec

I have attached the entire verbose log and marked it clearly where the hang happens. We have other Windows 8 machines on our domain where mpiexec runs fine without the hang. I've tried reinstalling multiple times and restarting the smpd service. Nothing has helped yet. I've tried disabling firewall and Windows 8 defender to no avail. Please see the attached log. THe hang happens in the same spot every time according to the log.

[James_T_Intel]

Yes, but my question is whether or not you installed it.  You can run Intel® MPI without installation by copying the files and setting up the SMPD.  I have encountered differences on Windows* 8 based on whether or not it is installed.

James.

[adambruss]

Sorry, yes the runtime environment is installed. Mpiexec.exe is in the system path when I fire up a DOS window and I use it from there.