Numerical methods and HPC

Enhancing Energy Production with Exascale HPC Methods

High Performance Computing (HPC) resources have become the key actor for achieving more ambitious challenges in many disciplines. In this step beyond, an explosion on the available parallelism and the use of special purpose processors are crucial. With such a goal, the HPC4E project applies new exascale HPC techniques to energy industry simulations, customizing them if necessary, and going beyo...

Numerical Methods and Stochastics Part I: Numerical Methods

Evaluation of HPC architectures for BRAMS numerical weather model

This paper investigates the performance of a weather forecasting application (Brazilian Regional Atmospheric Modeling System BRAMS) on a number of selected HPC clusters in order to understand the impact of different architectural configurations on its performance and scalability. We simulated atmosphere conditions over South America for 24 hours ahead with BRAMS, using 100 cores as a starting p...

Viscosity and numerical methods

In any flow, layers move at different velocities and a fluid’s viscosity arises from the shear stress between the layers that ultimately oppose any applied force. These shear stresses are communicated via collisions between the particles comprising the fluid, and the typical scale of viscosity is therefore of order the mean free collisional length λ. This scale is usually much smaller than the ...

Numerical Methods