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Update prgenv-gnu/25.6 documentation
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‎docs/software/prgenv/prgenv-gnu.md‎

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2020
| version | node types | system |
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|--------------------|-------------------|-----------------------------------------|
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| 25.06 (prerelease) | gh200 | daint |
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| 25.6 | gh200 | daint, eiger, santis, clariden |
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| 24.11 | a100, gh200, zen2 | daint, eiger, santis, clariden, bristen |
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| 24.7 | gh200, zen2 | daint, eiger, todi |
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### Versions
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=== "25.6"
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The key updates in version 25.6 compared to 24.11 are:
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* upgrading GCC to version 14 and CUDA to version 12.9
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* upgrading cray-mpich to version 8.1.32
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The spack version used to build the packages was also upgraded to 1.0.
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??? info "all packages exposed via the `default` and `modules` views in `v1`"
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* [[email protected]](https://packages.spack.io/package.html?name=aws-ofi-nccl)
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* [[email protected]](https://packages.spack.io/package.html?name=boost)
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* [[email protected]](https://packages.spack.io/package.html?name=cmake)
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* [[email protected]](https://packages.spack.io/package.html?name=cray-mpich)
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* [[email protected]](https://packages.spack.io/package.html?name=cuda)
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* [[email protected]](https://packages.spack.io/package.html?name=fftw)
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* [[email protected]](https://packages.spack.io/package.html?name=fmt)
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* [[email protected]](https://packages.spack.io/package.html?name=gcc)
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* [[email protected]](https://packages.spack.io/package.html?name=gsl)
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* [[email protected]](https://packages.spack.io/package.html?name=hdf5)
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* [[email protected]](https://packages.spack.io/package.html?name=kokkos)
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* [[email protected]](https://packages.spack.io/package.html?name=kokkos-kernels)
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* [kokkos-tools@develop](https://packages.spack.io/package.html?name=kokkos-tools)
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* [[email protected]](https://packages.spack.io/package.html?name=libtree)
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* [[email protected]](https://packages.spack.io/package.html?name=lua)
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* [[email protected]](https://packages.spack.io/package.html?name=lz4)
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* [[email protected]](https://packages.spack.io/package.html?name=meson)
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* [[email protected]](https://packages.spack.io/package.html?name=nccl)
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* [[email protected]](https://packages.spack.io/package.html?name=nccl-tests)
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* [[email protected]](https://packages.spack.io/package.html?name=netcdf-c)
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* [[email protected]](https://packages.spack.io/package.html?name=netcdf-cxx)
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* [[email protected]](https://packages.spack.io/package.html?name=netcdf-fortran)
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* [[email protected]](https://packages.spack.io/package.html?name=netlib-scalapack)
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* [[email protected]](https://packages.spack.io/package.html?name=ninja)
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* [[email protected]](https://packages.spack.io/package.html?name=openblas)
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* [[email protected]](https://packages.spack.io/package.html?name=osu-micro-benchmarks)
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* [[email protected]](https://packages.spack.io/package.html?name=papi)
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* [[email protected]](https://packages.spack.io/package.html?name=python)
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* [[email protected]](https://packages.spack.io/package.html?name=superlu)
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* [[email protected]](https://packages.spack.io/package.html?name=xcb-util-cursor)
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* [[email protected]](https://packages.spack.io/package.html?name=zlib-ng)
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=== "24.11"
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The key updates in version 24.11:v1 from the 24.7 version were:
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* [[email protected]](https://packages.spack.io/package.html?name=netcdf-cxx)
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* [[email protected]](https://packages.spack.io/package.html?name=netcdf-fortran)
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=== "25.06"
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!!! warning "Prerelease"
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The `prgenv-gnu/25.06` uenv is currently available as a prerelease on [daint][ref-cluster-daint], and is subject to change before the final release.
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Prereleases are tagged with `rcN` tags.
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[Let us know][ref-get-in-touch] if you find issues with the uenv.
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!!! warning "Unstable Spack version used for the uenv"
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If you are [building software through spack on top of a uenv][ref-building-uenv-spack], be aware that the 25.06 uenv is based on a prerelease version of Spack that contains [many breaking changes](https://github.com/spack/spack/discussions/30634).
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Using a commit other than the one used to build the uenv will likely result in issues.
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The key updates in version 25.06 compared to 24.11 are:
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* upgrading GCC to version 14 and CUDA to version 12.9
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* upgrading cray-mpich to version 8.1.32
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??? info "all packages exposed via the `default` and `modules` views in `v1`"
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!!! todo "The list of 25.06 package versions is yet to be finalized"
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[](){#ref-uenv-prgenv-gnu-how-to-use}
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## How to use
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!!! example "test mpi compilers and python provided by prgenv-gnu/24.11"
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```console
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# start using the default view
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$ uenv start --view=default prgenv-gnu/24.11:v1
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$ uenv start --view=default prgenv-gnu/25.6:v1
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# the python executable provided by the uenv is the default, and is a recent version
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$ which python
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/user-environment/env/default/bin/python
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$ python --version
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Python 3.12.5
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Python 3.13.5
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# the mpi compiler wrappers are also available
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$ which mpicc
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/user-environment/env/default/bin/mpicc
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$ mpicc --version
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gcc (Spack GCC) 13.3.0
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gcc (Spack GCC) 14.2.0
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$ gcc --version # the compiler wrapper uses the gcc provided by the uenv
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gcc (Spack GCC) 13.3.0
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gcc (Spack GCC) 14.2.0
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```
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=== "modules"
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!!! example "starting prgenv-gnu and listing the provided modules"
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```console
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$ uenv start prgenv-gnu/24.11:v1 --view=modules
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$ uenv start prgenv-gnu/25.6:v1 --view=modules
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$ module avail
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---------------------------- /user-environment/modules ----------------------------
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aws-ofi-nccl/git.v1.9.2-aws_1.9.2 lua/5.4.6
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boost/1.86.0 lz4/1.10.0
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cmake/3.30.5 meson/1.5.1
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cray-mpich/8.1.30 nccl-tests/2.13.6
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cuda/12.6.2 nccl/2.22.3-1
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fftw/3.3.10 netlib-scalapack/2.2.0
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fmt/11.0.2 ninja/1.12.1
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gcc/13.3.0 openblas/0.3.28
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gsl/2.8 osu-micro-benchmarks/5.9
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hdf5/1.14.5 papi/7.1.0
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kokkos-kernels/4.4.01 python/3.12.5
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kokkos-tools/develop superlu/5.3.0
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kokkos/4.4.01 zlib-ng/2.2.1
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libtree/3.1.1
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aws-ofi-nccl/1.16.0 meson/1.7.0
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boost/1.88.0 nccl-tests/2.16.3
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cmake/3.31.8 nccl/2.27.5-1
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cray-mpich/8.1.32 netcdf-c/4.9.2
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cuda/12.9.0 netcdf-cxx/4.2
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fftw/3.3.10 netcdf-fortran/4.6.1
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fmt/11.2.0 netlib-scalapack/2.2.2
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gsl/2.8 ninja/1.12.1
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hdf5/1.14.6 openblas/0.3.29
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kokkos-kernels/4.6.01 osu-micro-benchmarks/7.5
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kokkos-tools/develop papi/7.1.0
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kokkos/4.6.01 python/3.13.5
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libfabric/1.22.0 squashfs/4.6.1
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libtree/3.1.1 superlu/7.0.0
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lua/5.4.6 xcb-util-cursor/0.1.5
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lz4/1.10.0 zlib-ng/2.2.4
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```
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=== "Spack"

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