Difference between revisions of "Rolling Upgrade from RHEL7 to RHEL8"

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{{Note|The EL7->EL8 migration of compute and login nodes on HiPerGator and HPG-AI is complete. Make sure to remove '--constraint=el7' from job scripts.|warn}}
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{{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 OS Upgrade: RHEL-7 → RHEL-8==
  
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==Rebuilding Code for EL8==
 
==Rebuilding Code for EL8==
We recommend using the following environment modules to rebuild your code for EL8:
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'''Note:''' PMIX v2 is no longer supported in EL8.
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If you see an error regarding pmix v2, such as "''error while loading shared libraries: libpmix.so.2: cannot open shared object file: No such file or directory''", we recommend using the following environment modules to rebuild your code for EL8:
  
* gcc/12.2.2 openmpi/4.1.5
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* gcc/12.2.0 openmpi/4.1.5
 
* cuda/12.2.2 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
 
* intel/2020 openmpi/4.1.5
 
* cuda/12.2.2 intel/2020 openmpi/4.1.5
 
* cuda/12.2.2 intel/2020 openmpi/4.1.5
 
* nvhpc/23.7 openmpi/4.1.5
 
* nvhpc/23.7 openmpi/4.1.5
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* cuda/12.2.2 nvhpc/23.7 openmpi/4.1.5

Latest revision as of 16:06, 28 September 2023

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.

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

Note: PMIX v2 is no longer supported in EL8.

If you see an error regarding pmix v2, such as "error while loading shared libraries: libpmix.so.2: cannot open shared object file: No such file or directory", 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