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Subject: Hard links [was: Re: OPENMPI only works on Cygwin Terminal not windows Command Line]
To: cygwin AT cygwin DOT com
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From: Thomas Wolff <towo AT towo DOT net>
Message-ID: <94318bef-1db5-6220-5b05-c16d8dcb40a2@towo.net>
Date: Mon, 28 Oct 2019 05:59:45 +0100
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Am 27.10.2019 um 21:04 schrieb Brian Inglis:
> On 2019-10-27 13:21, Thomas Wolff wrote:
> ...
>> Change the soft link to a hard link, in cygwin, with an exe suffix.
> Cygwin needs to be running Windows 10 in dev mode with WSL installed to enable
> this without elevation I think.
> Otherwise you will need an elevated shell, and be careful if you use mklink, as
> the arguments are swapped from ln:
>
> 	> REM mklink /h LINK_NAME TARGET
> 	> mklink /h C:\cygwin64\bin\mpicc.exe C:\cygwin64\bin\opalwrapper.exe
> 	> mklink /h C:\cygwin64\bin\mpiexec.exe C:\cygwin64\bin\opalwrapper.exe

Additional privileges are required for Windows *soft* links. Hard links have always worked without. You can use cygwin ln alike.


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