[mpich-discuss] uninstall by removing the install directory?

Zhou, Hui zhouh at anl.gov
Wed May 22 16:50:43 CDT 2019

If you installed to a separate folder — via `—prefix=…`, then you can simply delete that folder. MPICH does not install files outside the `prefix`.

Hui Zhou
T: 630-252-3430

On May 22, 2019, at 4:39 PM, Jonathan Skipp via discuss <discuss at mpich.org<mailto:discuss at mpich.org>> wrote:

Hello all,

A few months ago someone had to install mpich-3.3 on my laptop (Mac OS 10.14.4) in a hurry. I'm now trying to compile some other code that uses mpich and believe that mpich (and another library) aren't installed properly.

Checking my installation, I can only find my mpich install directory (containing the directories bin/, include/, lib/, and share/). The build directory is nowhere to be found. I guess we deleted it. So all the makefiles are missing so I cannot make clean. Also there are no c.txt, m.txt or mi.txt to attach to this help request.

I now want to remove the old installation and then make a new installation myself. I am concerned that if I just remove the install directory I might miss some files that might be located elsewhere on my filesystem, or some configurations somewhere.

My question is: is it safe to just rm the old install directory? Or do I need to download again and configure it with a prefix pointing to the old install directory?

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