Introduction Numerical model Noise, Vibration and Harshness (NVH) is the main indicator to evaluate the quality of a vehicle Isogeometric boundary element  method (IGABEM) uses non-­uniform rational B-­splines (NURBS) as  basis functions to discretise the solution variables and the problem geometry in a boundary element formulation and outperforms than conventional Boundary Element method by bridging the gap between Computer-aided Design (CAD) and Computer-aided Engineering (CAE) Noise evaluation inside a passenger compartment of a vehicle, acoustic potential problem is governed by:

Motivation for HPC Parallel Computing Increase the problem size of the model Increase the engineering accuracy Experiment on various geometries Input Input Data Decomposition Matrix Construction Matrix Construction Matrix Construction Solve Solve1 Solve2 Output Output Serial Algorithm Serial Solver—O(n^3) Direct solver is slow and inaccurate on large scale model Parallel Algorithm Iterative Solver—O(n) MPI Parallel solver allows large scale SIMD-vectorization Multithreading