Update README.md

README.md

 # Deep Learning tutorial
 
-This repository contains materials for the Deep Learning tutorial of the Intuidoc team.
+This repository contains materials for the Deep Learning tutorial of the Intuidoc team.
\ No newline at end of file
+
+## Connecting to IGRIDA
+
+### Prerequisite
+
+You will need a working `ssh` with private and public key pairs.
+
+#### Windows:
+
+Install git for windows https://git-scm.com/downloads.
+This will install `Git Bash` with the three programs you will need: `ssh`, `ssh-keygen` and `ssh-copy-id`.
+
+Next, launch `git bash` and create your private/public keys with `ssh-keygen` and copy them to the `sabre.irisa.fr` server with `ssh-copy-id`:
+
+```bash
+ssh-keygen -t rsa
+ssh-copy-id -i ~/.ssh/id_rsa.pub $USER@sabre
+```
+
+Maintenant, vous pouvez vous connecter sur le front-end de la grille en utilisant la commande:
+
+```bash
+ssh $USER@igrida-oar-frontend
+```
+
+### Launching jobs
+
+In order to launch jobs on IGRIDA, you need to submit jobs using the `oarsub` command:
+
+```bash
+oarsub -I
+```
+
+This will launch a _interactive_ job for _10 minutes_ on _any_ node/server of IGRIDA with only _1 core_ allocated to you
+
+#### On GPU node
+
+To launch a job using one gpu on any gpu node with a duration of 30 minutes:
+
+```bash
+oarsub -I -l /gpu_device=1,walltime=0:30:0
+```
+
+More info at http://igrida.gforge.inria.fr/
+
+
+