Try running the command from a command prompt while logged in as the user that the webserver runs, with the environment that the webserver has.

There is a difference between how you are running the command and how the webserver does (as evidenced by the fact that the webserver produces an error). Figure out what that difference is and you are more than half-way to solving your problem.

In reply to Re: Re: Re: Perl execution of MPIRUN commands by tilly
in thread Perl execution of MPIRUN commands by tesswulf

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