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Information and tools for providing Julia on HLRS' compute systems

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Julia at HLRS

Information and tools for providing Julia on the compute systems at HLRS.

Adding a new Julia version

First, clone this repository and create an environment variable that refers to the cloned directory's path:

git clone [email protected]:hlrs-tasc/julia-at-hlrs.git
export JULIA_AT_HLRS="$(pwd)/julia-at-hlrs"

If you can not read from remote repositories you can make a network connection via SOCKS and https proxy. From now on, we will use $JULIA_AT_HLRS to refer to files and folders relative to the root of this repository.

Installing Julia

Make sure you have permissions to write in /sw/... and that you are using one of the following login nodes:

hawk-login01.hww.hlrs.de # hawk
cl1fr1.hww.hlrs.de # vulcan

Go to the directory where Julia should be installed:

cd /sw/general/x86_64/development/julia

Then, run the Julia install script with the full semver version of Julia you want to install. For example, for Julia 1.9.3, execute

$JULIA_AT_HLRS/bin/install_julia.sh 1.9.3

This will download the precompiled Julia binaries for the Linux x86_64 architecture into the current working directory, and unpack it into a local directory named after the semver version, e.g., 1.9.3. The downloaded tar file can afterwards be deleted with

rm julia-*-linux-x86_64.tar.gz

Installing the module files

Module file installation on the compute systems at HLRS is tricky, at least on Hawk. Thus read these instructions carefully and re-check after each step that everything happened as you intended.

Hawk

Go to the directory where the Julia module files should be installed:

cd /opt/hlrs/non-spack/rev-009_2022-09-01/modulefiles/mpt/2.26/gcc/10.2.0/julia # for MPT
cd /opt/hlrs/non-spack/rev-009_2022-09-01/modulefiles/openmpi/4.1.4/gcc/10.2.0/julia # for OpenMPI

Make sure the paths above are correct for hlrs-software-stack/current. To do so, print the module paths:

echo $MODULEPATH

Then, run the module file install script with the MPI implementation (either mpt or openmpi) and the full semver version of Julia you want to install. For example, for MPT MPI and Julia 1.9.3, execute

$JULIA_AT_HLRS/bin/install_modulefiles.sh mpt 1.9.3

This will copy the relevant module files for the different Julia modules to the current working directory. Make sure that the file permissions are (at least) r for each user.

Next, update the module defaults and aliases by running the set_modulerc.sh script with the full semver version of Julia you want to install. For example, for Julia 1.9.3, execute

$JULIA_AT_HLRS/bin/set_modulerc.sh 1.9.3

Note that this will overwrite the .modulerc.lua file in your current directory with something like

module_version("julia/1.9.3", "default")
module_version("julia/1.9.3-cuda", "cuda")

Finally, create symlinks from the modulefile install directory to the directory that is actually part of the module path. To achieve this, go to the module path directory:

cd /opt/hlrs/spack/rev-009_2022-09-01/modulefiles/linux-rocky8-x86_64/gcc/10.2.0/mpt/julia # for MPT
cd /opt/hlrs/spack/rev-009_2022-09-01/modulefiles/linux-rocky8-x86_64/openmpi/4.1.4-y7nxabv/gcc/10.2.0/julia # for OpenMPI

Then, call the install_symlinks.sh script with the path to the modulefile install directory and the full semver version of Julia you want to install. For example, for Julia 1.9.3, create the MPT symlinks by executing

$JULIA_AT_HLRS/bin/install_symlinks.sh /opt/hlrs/non-spack/rev-009_2022-09-01/modulefiles/mpt/2.26/gcc/10.2.0/julia 1.9.3

and the OpenMPI symlinks by executing

$JULIA_AT_HLRS/bin/install_symlinks.sh /opt/hlrs/non-spack/rev-009_2022-09-01/modulefiles/gcc/10.2.0/openmpi/julia julia 1.9.3

Vulcan and Training Cluster

Go to the directory where the Julia module files should be installed:

cd /opt/modulefiles/julia # on Vulcan
cd /opt/hlrs/non-spack/modulefiles # on the training cluster

Then, run the module file install script with the MPI implementation left empty (just pass the empty string "") and the full semver version of Julia you want to install. For example, for Julia 1.9.3, execute

$JULIA_AT_HLRS/bin/install_modulefiles.sh "" 1.9.3

This will copy the relevant module files for the different Julia modules to the current working directory.

Next, update the module defaults and aliases by running the set_modulerc.sh script with the full semver version of Julia you want to install. For example, for Julia 1.9.3, execute

$JULIA_AT_HLRS/bin/set_modulerc.sh 1.9.3

Note that this will overwrite the .modulerc/.modulerc.lua file in your current directory with something like

module-version "julia/1.9.3" default

or

module_version("julia/1.9.3", "default")

Verifying the new Julia module

To make sure that everything works as expected, log out and back in again, and execute

module avail julia

This should list the new module files among the existing ones. Finally, verify that Julia is working as expected by executing

module load julia
julia -e 'using InteractiveUtils; versioninfo()'

which should produce output similar to

Julia Version 1.9.3
Commit bed2cd540a1 (2023-08-24 14:43 UTC)
Build Info:
  Official https://julialang.org/ release
Platform Info:
  OS: Linux (x86_64-linux-gnu)
  CPU: 256 × AMD EPYC 7702 64-Core Processor
  WORD_SIZE: 64
  LIBM: libopenlibm
  LLVM: libLLVM-14.0.6 (ORCJIT, znver2)
  Threads: 1 on 256 virtual cores
Environment:
  LD_LIBRARY_PATH = /sw/general/x86_64/development/julia/1.9.3/lib:/opt/hlrs/non-spack/rev-009_2022-09-01/compiler/gcc/10.2.0/mpt_custom_fortran_modules/2.26:/opt/hlrs/non-spack/mpi/mpt/2.26/lib:/opt/hlrs/non-spack/rev-009_2022-09-01/compiler/gcc/10.2.0/lib64
  JULIA_DEPOT_PATH = /zhome/academic/HLRS/hlrs/hpcnnehe/.julia/HLRS/hawk
  JULIA_CUDA_USE_BINARYBUILDER = false
  JULIA_MPI_BINARY = system
  JULIA_ROOT = /sw/general/x86_64/development/julia/1.9.3
  JULIA_HOME = /sw/general/x86_64/development/julia/1.9.3
  JULIA_VERSION = 1.9.3

License and contributing

The contents of this repository are published under the MIT license (see LICENSE). We are very happy to accept contributions from everyone, preferably in the form of a PR.

Authors

This repository is maintained by Michael Schlottke-Lakemper (University of Stuttgart, Germany).

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