1. 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:

2. 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