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RASM Coupler

RASM Coupler. RASM uses the cpl7 CCSM4/CESM1 coupler Responsible for communication between components mapping (interpolation) between different grids merging fields computing atmosphere/ocean fluxes sequencing the order of the components and coupling operations. RASM Overall Design.

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RASM Coupler

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  1. RASM Coupler • RASM uses the cpl7 CCSM4/CESM1 coupler • Responsible for • communication between components • mapping (interpolation) between different grids • merging fields • computing atmosphere/ocean fluxes • sequencing the order of the components and coupling operations

  2. RASM Overall Design • Couples atmophere, land, ocean, sea ice, land ice, and runoff models • Top level driver running on all processors controls sequencing • All communication between components through a central coupler • Single Executable with a top level driver calling init/run/finalize interfaces in component models • Models can be run sequentially or concurrently or mixed sequential/concurrent on hardware processors to tune performance

  3. Sample RASM component pe layouts driver driver driver ice land land ice land ocean coupler ice coupler ocean atm ocean atm coupler hybrid concurrent sequential hybrid concurrent “2” atm

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