CCR Software Environment Releases

The latest stable release is 2023.01.

What are CCR Software Environments?

CCR maintains a suite of software programs, libraries, and toolchains, called "Standard Software Environments", for use on our clusters. These software environments are provided through a set of modules which allow you to switch between different releases. CCR's standard environments identify combinations of specific compiler toolchains and software modules that are used most commonly to build other software. These combinations are grouped in modules named ccrsoft and the default version automatically loaded by lmod when you login.

We typically release a new version of ccrsoft on a yearly basis. Previous software environment releases are made available for a short period for use while migrating workloads to the latest release. This page contains the changelog for each software environment release where you can find information on toolchain versions, new features, deprecations, and important notes.

To switch between CCR software environment releases run the following commands:

# View all available software releases
$ module spider ccrsoft

# Load a specific release
$ module load ccrsoft/2024.04

Pin to a specific release

When you login the default version of ccrsoft module will be loaded automatically for you. Users can override the default version and pin to a specific release by adding the version to ~/.modulerc. For example: 

$ echo "module-version ccrsoft/2024.04 default" > $HOME/.modulerc
NOTE: This should be done only once. To update your default version, edit the file and change the ccrsoft/version information

2024.04

New features/changes in this release include:

  • Support for aarch64 (ARMv9.0-A NVIDIA Gracehopper)
  • Microarchitecture avx2 renamed to x86-64-v3
  • Microarchitecture avx512 renamed to x86-64-v4

Supported compiler toolchains:

Toolchain Version Included compiles and libraries
intel 2023b Intel compilers, Intel MPI, and Intel MKL
foss 2023b GCC, OpenMPI, FlexiBLAS, OpenBLAS, LAPACK, ScaLAPACK, FFTW
GCC 13.2.0 GCC compiler only
CUDA 12.4.0 nvcc

Supported CPU Microarchitectures:

CPU March CPU Family Supported CPUs
x86-64-v3 (avx2) x86_64 Intel Haswell, Broadwell, AMD Zen3
x86-64-v4 (avx512) x86_64 Intel Cascade Lake-SP, Ice Lake-SP, Sapphire Rapids-SP, Emerald Rapids-SP, AMD Zen4
neoverse-v2 aarch64 ARMv9.0-A NVIDIA Gracehopper

2023.01

New features in this release include:

  • Software is now compiled and optimized for specific architectures
  • A hierarchical module naming scheme consisting of a 3-level hierarchy:
    • Core level - compiler and architecture independent
    • Compiler level - depend on a specific CPU architecture and compiler toolchain
    • MPI level - depend on a specific CPU architecture, compiler toolchain, and MPI library

Supported compiler toolchains:

Toolchain Version Included compiles and libraries
intel 2022.00 Intel compilers, Intel MPI, and Intel MKL
foss 2021b GCC, OpenMPI, FlexiBLAS, OpenBLAS, LAPACK, ScaLAPACK, FFTW
GCC 11.2.0 GCC compiler only
CUDA 11.8.0 nvcc
NVHPC 22.11 CUDA 11.8.0, nvcc, nvc++

Supported CPU Microarchitectures:

Architecture Supported CPUs
avx2 Intel Haswell, Broadwell
avx512 Intel Cascade Lake-SP, Ice Lake-SP, Sapphire Rapids-SP, Emerald Rapids-SP, AMD Zen4