AWS ParallelCluster v3.8.0

We're excited to announce the release of AWS ParallelCluster Cookbook 3.8.0

This is associated with AWS ParallelCluster v3.8.0

ENHANCEMENTS

• Add support for EC2 Capacity Blocks for ML.
• Add support for Rocky Linux 8.
• Add support for Scheduling/SlurmSettings/Database/DatabaseName parameter to render StorageLoc
  in the slurmdbd configuration generated by ParallelCluster.
• Add the option to use EFS storage instead of NFS exports from the head node root volume
  for intra-cluster shared file system resources: ParallelCluster, Intel, Slurm, and /home data.
• Allow for mounting home as an EFS or FSx external shared storage via the SharedStorage section of the config file.

CHANGES

• Upgrade Slurm to 23.02.7 (from 23.02.6).
• Upgrade NVIDIA driver to version 535.129.03.
• Upgrade CUDA Toolkit to version 12.2.2.
• Use Open Source NVIDIA GPU drivers (OpenRM) as NVIDIA kernel module for Linux instead of NVIDIA closed source module.
• Do not wait for static nodes in maintenance to signal CFN that the head node initialization is complete.
• Upgrade EFA installer to 1.29.1.
  • Efa-driver: efa-2.6.0-1
  • Efa-config: efa-config-1.15-1
  • Efa-profile: efa-profile-1.5-1
  • Libfabric-aws: libfabric-aws-1.19.0-1
  • Rdma-core: rdma-core-46.0-1
  • Open MPI: openmpi40-aws-4.1.6-1
• Upgrade GDRCopy to version 2.4 in all supported OSes, except for Centos 7 where version 2.3.1 is used.
• Upgrade aws-cfn-bootstrap to version 2.0-28.
• Upgrade Python to 3.9.17.

BUG FIXES

• Fix inconsistent scaling configuration after cluster update rollback when modifying the list of instance types declared in the Compute Resources.
• Fix users SSH keys generation when switching users without root privilege in clusters integrated with an external LDAP server through cluster configuration files.
• Fix disabling Slurm power save mode when setting ScaledownIdletime = -1.
• Fix hard-coded path to Slurm installation dir in update_slurm_database_password.sh script for Slurm Accounting.