Afraid not - since you don’t have any nodes that meet the 3G requirement, you’ll just hang.
> On Feb 7, 2018, at 7:01 AM, david vilanova <vila...@gmail.com> wrote: > > Thanks for the quick response. > > Should the following script do the trick ?? meaning use all required nodes to > have at least 3G total memory ? even though my nodes were setup with 2G each > ?? > > #SBATCH array 1-10%10:1 > > #SBATCH mem-per-cpu=3000m > > srun R CMD BATCH myscript.R > > > > thanks > > > > > On 07/02/2018 15:50, Loris Bennett wrote: >> Hi David, >> >> david martin <vila...@gmail.com> writes: >> >>> >>> >>> Hi, >>> >>> I would like to submit a job that requires 3Go. The problem is that I have >>> 70 nodes available each node with 2Gb memory. >>> >>> So the command sbatch --mem=3G will wait for ressources to become available. >>> >>> Can I run sbatch and tell the cluster to use the 3Go out of the 70Go >>> available or is that a particular setup ? meaning is the memory >>> restricted to each node ? or should i allocate two nodes so that i >>> have 2x4Go availble ? >> Check >> >> man sbatch >> >> You'll find that --mem means memory per node. Thus, if you specify 3GB >> but all the nodes have 2GB, your job will wait forever (or until you buy >> more RAM and reconfigure Slurm). >> >> You probably want --mem-per-cpu, which is actually more like memory per >> task. This is obviously only going to work if your job can actually run >> on more than one node, e.g. is MPI enabled. >> >> Cheers, >> >> Loris >> > >
