View source for Rolling Upgrade from RHEL7 to RHEL8

{{Note|The EL7->EL8 migration of compute and login nodes on HiPerGator and HPG-AI is complete. Make sure to remove el7 constraint from your job scripts.|warn}}
==HiPerGator OS Upgrade: RHEL-7 → RHEL-8==

HiPerGator has gone through a rolling upgrade process from Red Hat Enterprise Linux version 7 (RHEL-7) to version 8 (RHEL-8). The upgraded software environment includes updates to important components including, but not limited to, NVIDIA GPU drivers, CUDA (12.2), communication libraries, compilers (gcc/12 and intel/2023), and OpenMPI (4.1.5).  

Some programs/workflows run in the updated software environment without any modification, and some require recompilation or adaptation.

==Rebuilding Code for EL8==
We recommend using the following environment modules to rebuild your code for EL8:

* gcc/12.2.0 openmpi/4.1.5
* cuda/12.2.2 gcc/12.2.0 openmpi/4.1.5
* intel/2020 openmpi/4.1.5
* cuda/12.2.2 intel/2020 openmpi/4.1.5
* nvhpc/23.7 openmpi/4.1.5
* cuda/12.2.2 nvhpc/23.7 openmpi/4.1.5