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<p>Hi,</p>
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<p>I am just wondering if there are any srun flags to </p>
<p>allocate the last MPI-rank to an exclusive node, for example,</p>
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<p>#SBATCH -N 3 # 3 nodes<br>
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<p>#SBATCH --tasks-per-node=10 <br>
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<p>#SBATCH --cpu-per-task=1 # 10 MPI-rank per node</p>
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<p>srun -n 21 ... ./application # MPI-rank 0-9 on node 0; MPI-rank 10-19 on node 1; MPI-rank 20 on node 2 !?
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<p>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<br>
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<p><a href="https://doc.zih.tu-dresden.de/hpc-wiki/bin/view/Compendium/BindingAndDistributionOfTasks">https://doc.zih.tu-dresden.de/hpc-wiki/bin/view/Compendium/BindingAndDistributionOfTasks</a></p>
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<p>but it seems to me that all patterns allocate MPI-rank equivalently into nodes.</p>
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<p>Thanks.</p>
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<p>Regards, Jing Gong<br>
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