Most software packages are built from a compiler toolchain. A toolchain consists of one or more compilers, together with some libraries for using an MPI stack and commonly used math libraries. Well-known packages include BLAS/LAPACK APIs for linear algebra routines.

EasyBuild supports several different toolchains. The Hutch uses the foss toolchain, which is an acronym for Free Open Source Software. Foss is based on the GNU compiler tools. Toolchains are curated twice a year and named for the year, and labeled a or b, i.e., foss-2019b. When loading multiple modules for a workflow, always load modules from the same toolchain. Do not mix and match modules from different toolchains.

GNU Toolchain Versions

Toolchain GCC Version Notes
foss-2022b GCC 12.2.0 Begining Feb 2023
foss-2022a GCC 11.3.0 Limited use
foss-2021b GCC 11.2.0 Begining Nov 2021
foss-2021a GCC 10.3.0 Limited use
foss-2020b GCC 10.2.0 Begining Nov 2020
foss-2020a GCC 9.3.0 Mostly skipped
foss-2019b GCC 8.3.0 Primay tool chain for June 2019 cluster update
foss-2019a GCC 8.2.0 skipped
foss-2018b GCC 7.3.0 Many modules were built for the new cluster, but were outdated by 2019
foss-2016b GCC 5.4.0 In use from 2016 too 2019. Retired with the Ubuntu 14.04 cluster