Warning

Iceberg reaches end-of-life on 30th November 2020. If you are running jobs on Iceberg then you need to take urgent action to ensure that your jobs/scripts will run on ShARC or Bessemer. If you have never used ShARC or Bessemer then now is the time to test your scripts. Not all software on Iceberg is available on ShARC/Bessemer.

Julia¶

Julia is a high-level, high-performance dynamic programming language for technical computing, with syntax that is familiar to users of other technical computing environments.

Interactive Usage¶

After connecting to iceberg (see Establishing a SSH connection), start an interactive session with either the or qrsh or qrshx commands.

The latest version of Julia (currently 0.5.0-rc3) is made available with the commands

module load compilers/gcc/5.2
module load apps/gcc/5.2/julia/0.5.0-rc3

This adds Julia to your PATH and also loads the gcc 5.2 compiler environment with which Julia was built.

Start Julia by executing the command

julia

You can exit a Julia session with the quit() function.

Installation notes¶

These are primarily for administrators of the system.

Julia was installed using gcc 5.2

module load apps/gcc/5.2/git/2.5
module load compilers/gcc/5.2
module load apps/python/anaconda2-2.5.0

git clone git://github.com/JuliaLang/julia.git
cd julia
git checkout release-0.5
#The next line targets the NEHALEM CPU architecture. This is the lowest architecture available on
#Iceberg and so the resulting binary will be supported on all nodes. Performance will not be as good as it
#could be on modern nodes.
sed -i s/OPENBLAS_TARGET_ARCH:=/OPENBLAS_TARGET_ARCH:=NEHALEM/ ./Make.inc
make

Module File¶

The module file is as below

#%Module10.2####################################################################
#

## Module file logging
source /usr/local/etc/module_logging.tcl
##

proc ModulesHelp { } {
        global ver

        puts stderr "   Adds Julia $ver to your environment variables."
}

# Mathematica version (not in the user's environment)
set     ver     0.5.0-rc3

module-whatis   "sets the necessary Julia $ver paths"

prepend-path PATH /usr/local/packages6/apps/gcc/5.2/julia/0.5.0-rc3