Hi,
I am just wondering if there are any srun flags to allocate the last MPI-rank to an exclusive node, for example, #SBATCH -N 3 # 3 nodes #SBATCH --tasks-per-node=10 #SBATCH --cpu-per-task=1 # 10 MPI-rank per node srun -n 21 ... ./application # MPI-rank 0-9 on node 0; MPI-rank 10-19 on node 1; MPI-rank 20 on node 2 !? For my case, the last MPI-rank is consider as master and it takes much memory. So it would be better if the last MPI-rank can be distributed on an exclusive node . I have tried all distribution patterns introduced in https://doc.zih.tu-dresden.de/hpc-wiki/bin/view/Compendium/BindingAndDistributionOfTasks but it seems to me that all patterns allocate MPI-rank equivalently into nodes. Thanks. Regards, Jing Gong
