Hi Cyril, Please try add `--with-device=ch4:ofi` to your `configure` option. -- Hui Zhou From: Cyril GUYOT via discuss <[email protected]> Date: Thursday, February 11, 2021 at 6:05 AM To: [email protected] <[email protected]> Cc: Cyril GUYOT <[email protected]> Subject: [mpich-discuss] Problem c.txt - MPICH installation Hello, As said in the installguide from the MPICH website, I am contacting you because I've got an error during the installation in the c.txt file, and I think this error stop my progression to the installation because I cannot do the step 6. At the bottom of the file it is said " configure: error : no ch4 netmod selected". This may be a self explanatory error but I'm a beginner on Ubuntu and my skills are limited yet. Could you help me with this problem ? Sincerely, Guyot C