OPENMPI only works on Cygwin Terminal not windows Command Line

Thomas Wolff
Sun Oct 27 19:21:00 GMT 2019

Am 27.10.2019 um 19:56 schrieb William John:
> I did add it to the Path and also restarted the computer and the command
> line. I do see that the file mpicc is a symbolic link to
> opalwrapper executable file and windows cannot recognize that. Is there
> some way to remedy this?
Change the soft link to a hard link, in cygwin, with an exe suffix.
And you really don't need to restart Windows after chaning an 
environment variable.
Also, please don't "top-post" here.
> On Sat, Oct 26, 2019 at 11:33 PM William John <> wrote:
>> Dear Cygwin,
>> I recently installed openmpi and libopenmpi-devel on my windows machine.
>> However, I cannot call mpicc on my windows cmd, rather I get "'mpicc' is
>> not recognized as an internal or external command, operable program or
>> batch file". This is weird because I have added C:\cygwin64\bin
>> and C:\cygwin64 to my System variables. The command mpicc --version also
>> works on my cygwin terminal so I am kind of confused here as to what to do
>> with the set up. I checked the bin inside cygwin64 and I found mpicc and
>> mpiexec, I am just confused as to what is going on with the configuration
>> for my windows command line. Would it be possible to direct me to a
>> solution or to help me with this?
>> Best,
>> William John
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