Does this help? [---- quote ----] configure: error: no ch4 netmod selected The default ch4 device could not detect a preferred network library. Supported options are ofi (libfabric) and ucx: --with-device=ch4:ofi or --with-device=ch4:ucx Configure will use an embedded copy of libfabric or ucx if one is not found in the user environment. An installation can be specified by adding --with-libfabric=<path/to/install> or --with-ucx=<path/to/install> to the configuration. The previous MPICH default device (ch3) is also available and supported with option: --with-device=ch3 [ -- end-quote --] -- Hui Zhou From: Maksim Kozlov via discuss <[email protected]> Date: Wednesday, January 20, 2021 at 9:06 AM To: [email protected] <[email protected]> Cc: Maksim Kozlov <[email protected]> Subject: [mpich-discuss] config error Dear Sir or Madam, could you please help me with installing MPICH. I run ~/mpich-3.4/configure -prefix=/home/maksim/mpich-install |& tee c.txt but I guess something went wrong because makefile was not created. c.txt is attached. thank you very much Maksim Kozlov