It is saying "An existing connection was forcibly closed by the remote host", which often means the remote process is exiting or being killed (e.g. from segfault). Unfortunately, there isn't much more insight we can offer.

Hui

From: Nazmul Haque via discuss <discuss@mpich.org>
Sent: Tuesday, August 8, 2023 4:37 AM
To: discuss@mpich.org <discuss@mpich.org>
Cc: Nazmul Haque <shadhin873@outlook.com>
Subject: [mpich-discuss] reading context error

Hello,

While running lammps on mpi using mpich2, we are getting this error and even after doing a thorough search on online and applying diffrent ideas to solve the problem we are getting no solution. May I know why this error is showing?

Thank you,
Nazmul