Simulation of formaldehyde formation during a galaxy collision using vectorized numerical method on Intel Xeon Phi accelerators

Abstract

We present implementation of a new vectorized high-order accuracy numerical method for solving gravitational hydrodynamics equations on supercomputers equipped with Intel Xeon Phi in the paper. Combination of the Godunov method, the Harten-Lax-Van Leer method and the piecewise parabolic method on the local stencil is at the basis of the method. It allows achieving high-order accuracy for smooth solutions and low dissipation on discontinuities. We present chemokinetic model of formaldehyde formation based on molecular hydrogen and carbon monoxide. We show the results of numerical simulation of interacting galaxies.