Using R on Carina

permalink: /r-quickstart

Welcome! This guide will help you get up and running with R on Carina. We’ll cover everything from starting a quick interactive session to submitting a longer job to the cluster.

Available R Versions

These R versions are available in Carina OnDemand and via module load:

• R/4.3.3
• R/4.4.3
• R/4.5.1 (current default)

To use a specific version in OnDemand, select it in the session launch form. For command line, specify the version when loading the module, for example ml R/4.4.3.

Carina OnDemand

This web-based method is the easiest approach.

1. Start an RStudio session

3. Connect to your session from My Interactive Sessions

Loading the R Module

Before you can use R, you’ll need to let Carina know you want to use it by loading the R module. It’s as simple as typing this in your terminal:

ml R

1. Request compute resources via Slurm’s srun command (cannot run on login nodes):

   srun -p normal -n 1 --cpus-per-task=8 --pty bash

   This requests one node with 8 CPUs on the normal partition.

3. When you are on a computing node, load the R module. Note that R is an exception to the “all module names are lowercase” rule, and must be loaded with an uppercase R.

   Load the default version:

   module load R or ml R (module load and ml are interchangeable)

   Load a different version:

   ml R/4.4.3

4. Start R:

   R