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Monthly Archives: December 2025
Installing OpenMPI across CentOS/RHEL 9 based Nodes
OpenMPI is available for install from the AppStream Repo and EPEL Repo is also best enabled for its required associated packages in a CentOS 9 (RHEL) environment of separate like installed compute nodes in a cluster. Install OpenMPI with: dnf … Continue reading
Get all the logs and output from a systemctl based service
Use the following command to get the full output from a recent service start attempt: SYSTEMD_LESS=”FRXMK” journalctl -xeu $SERVICENAME eg: # SYSTEMD_LESS=”FRXMK” journalctl -xeu httpd
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