Performance

In order to assess the performance of running on ARCHER2 …

Scaling Tests

All standard output and hybrid MPI method unless otherwise stated

Bare-Metal

  • GNU/openMPI O0

  • GNU/openMPI O1

  • Cray/MPICH O0

  • Cray/MPICH O1

  • Cray/MPICH O1 No Output / Heavy Output

SIF

  • GNU/openMPI O0

  • GNU/openMPI O1

  • Cray/MPICH O0

  • Cray/MPICH O1

Addtional SIF

  • Cray/MPICH O1 Bloated

  • Cray/MPICH O1 No Output / Heavy Output

  • Cray/MPICH O1 Bind MPI method

  • Cray/MPICH O1 multi-stage + apps

Bare-metal

Graphs + optimisations

_images/AMM7_scale1.png _images/AMM7_scale2.png

NEMO SIF

Graphs + optimisations

_images/AMM7_scale5.png

Summary

Thoughts

  • one

  • two

  • three