Running-the-jobs/Job-Dependencies.md

-### Job en tranche
-Il faut soumettre chaque tranche avec les dépendance qui vont bien, par exemple:
-> sbatch --dependancy=afterany:<jobid> script.slurm
+You may wish to specify dependencies between jobs for various reasons, including
+ * checkpoint/restart: if you job takes more than the time limit, you'll need to split it in sub steps and launch step $`N+1`$ only when step $`N`$ successfully completed.
+ * multi stage work: you work might be divided in different stages, each of which might not use te same resources. Again, stage $`N+1`$ must wait for successful completion of stage $`N`$.
  
-Lance la première tranche et renvoi un numéro de job 'jobid':
+This can be achieved with the '--dependancy' option of [sbatch](https://slurm.schedmd.com/sbatch.html) command.
 
-> sbatch --dependancy=afterany:<jobid>:<autrejobid> script.slurm
+First, you launch you first jobs (you can have one or more):
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+```
+[alainm@castor rel]$ sbatch -p fdr ./usefull.slurm 
+Submitted batch job 16388602
+[alainm@castor rel]$ sbatch -p fdr ./usefull.slurm 
+Submitted batch job 16388603
+[alainm@castor rel]$
+```
+This will provide you with the job ids, here 16388602 and 16388603.
+
+You can then launch another job, requiring that it only be launch once the previous jobs successfully completed:
+
+```
+$ sbatch --dependancy=after:16388602:16388603 ./usefull2.slurm
+```
+ 
+There are many more ways to specify dependencies explained in the [sbatch man page](https://slurm.schedmd.com/sbatch.html).
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