HPC Introduction: Difference between revisions

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* The only elevations written to the SMS .2dm mesh file (by default, binary output is interpolated/extrapolated to the cell corners).
 
withinWithin the above sub-grid framework, using TUFLOW HPC time derivatives of cell averaged water depth, u-velocity and v-velocity are computed on a cell-by-cell basis and the model evolved using an explicit ODE solver. Calculation of the cell based derivatives are highly independent of each other making it possible to run this solution scheme across multiple processors or GPU cards. Parallelisation is done by breaking up the model into vertical ribbons. Each ribbon of the model is run on a different processor (or GPU card) with boundary information shared between processors at each timestep.<br>
 
[[File: Mesh_Ribbon_Splitting.png |360px]]<br>