A Case Study on Using a Proto-Application as a Proxy for Code Modernization

Abstract

To take full advantage of future HPC systems, hybrid parallelization strategies are required. In a previous work, we demonstrated the Divide and Conquer, D&C, approach for efficient parallelization of finite element methods on unstructured meshes. In this paper we experiment the concept of proto-application as a proxy between computer scientists and application developers on a real industrial use-case. The D&C library has been entirely developed on the proto-application and then validated on the original application. We also ported the D&C library to another fluid dynamic application, AETHER, developed by Dassault Aviation. The results show that the speed-up validated on the proto-application can be reproduced on other full scale applications using similar computational patterns.

Performance Analysis of SIMD Vectorization of High-Order Finite-Element Kernels

“…In fact, many works, like [1], [2], [3], [4], [5], deal with the efficiency concern from the interrelation between hardware and algorithms. Finite-element methods are representative of such situation, as these numerical approaches are at the heart of many open-source or commercial software packages [6], [7], [8]. One of the key features of this class of algorithm is the ability to handle complex geometrical object shapes.…”