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We present and compare the performances of two many-core architectures: the Nvidia Kepler and the Intel MIC both in a single system and in cluster configuration for the simulation of two physical systems. As a first benchmark we consider the time required to update a single spin of the 3D Heisenberg spin glass model by using the Over-relaxation algorithm. The second application we consider is a reactive...
In this paper we present the parallel solver χnavis, a general purpose solver for Computational Fluid Dynamics (CFD). The solver is based on the finite volume discretization of the unsteady incompressible Navier-Stokes equations; main features include a level set approach to handle free surface flows and a dynamical overlapping grids approach, which allows to deal with bodies in relative motion. The...
Graphical processing units (GPUs), characterized by significant computing performance, are nowadays very appealing for the solution of computationally demanding tasks in a wide variety of scientific applications. However, to run on GPUs, existing codes need to be ported and optimized, a procedure which is not yet standardized and may require non trivial efforts, even to high-performance computing...
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