Abstract
AbstractScalability of parallel computer code is a concern in applications that rely on efficient simulations. We present a demonstration of weak scalability of a hybrid MPI+OpenMP code for the numerical solution of a system of seven coupled, non‐linear, time‐dependent reaction‐diffusion equations that model calcium induced calcium release in a heart cell. The results demonstrate that care needs to be taken in the implementation of the OpenMP pragmas to achieve weak scalability within a shared‐memory node and that MPI is capable to provide strong scalability across multiple nodes in a distributed‐memory cluster.
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