On May 7, 2020, at 2:30 PM, Zhou, Hui via discuss <[email protected]> wrote:

Hi Martin,

Could you try the latest version https://www.mpich.org/downloads/ <https://www.mpich.org/downloads/> ?

-- Hui Zhou

From: Martin Ivanov via discuss <[email protected]> Reply-To: "[email protected]" <[email protected]> Date: Thursday, May 7, 2020 at 11:35 AM To: "[email protected]" <[email protected]> Cc: Martin Ivanov <[email protected]> Subject: [mpich-discuss] Run mpich on localhost

Hello, I installed mpich-3.0.4 on a x86_64 BSD machine. I need to run MPI on this single machine, which has 8 cores. When I run the cpi example, I get:

marto@% mpiexec -n 3 mpich-3.0.4/examples/cpi ssh: Could not resolve hostname : hostname nor servname provided, or not known

Also, how did you configure MPICH? What is your hostname (uname -n), and what is in /etc/hosts? Tony