# Handling multiple versions of Julia

**URL:** <https://discourse.julialang.org/t/handling-multiple-versions-of-julia/14035>\
**Category:** Tooling\
**Created:** [August 25, 2018, 11:33am UTC](https://discourse.julialang.org/t/handling-multiple-versions-of-julia/14035 "2018-08-25T11:33:39Z")\
**Posts on this page:** 1\
**Showing post:** 2

<div class="post-metadata">

**Author:** ![carstenbauer](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/carstenbauer/32/4981_2.png) [@carstenbauer](https://discourse.julialang.org/u/carstenbauer)\
**Post date:** [August 25, 2018, 11:54am UTC](https://discourse.julialang.org/t/handling-multiple-versions-of-julia/14035/2 "2018-08-25T11:54:27Z")

</div>

I use [modules](http://modules.sourceforge.net/) to switch between julia binaries and a self-compiled MKL version.

Example lua file:

```nohighlight
help([==[

Description
===========
Provides access to Julia 0.6.4 binaries

]==])

whatis([==[Description: Provides access to Julia 0.6.4 binaries]==])

unload("julia-mkl")

load("Intel/2018.2.199-GCC-5.5.0", "ParaStationMPI/5.2.1-1", "HDF5/1.10.1")

setenv("SSL_CERT_FILE", "/etc/pki/tls/cert.pem")
setenv("EDITOR", "vim")
setenv("JULIA_PKGDIR", "/gpfs/homea/hku27/hku273/.julia")

prepend_path("LD_LIBRARY_PATH", "/gpfs/homea/hku27/hku273/software/julia/0.6.4/usr/lib")
prepend_path("CPATH", "/gpfs/homea/hku27/hku273/software/julia/0.6.4/usr/include")
prepend_path("PATH", "/gpfs/homea/hku27/hku273/software/julia/0.6.4/bin")

```

After adding the folder with those files to my `$MODULEPATH` I can just do `module load julia/0.6.4` or `module load julia-mkl/0.6.4`.

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_[View the full topic](https://discourse.julialang.org/t/handling-multiple-versions-of-julia/14035)._