Università della Svizzera italiana

Self-adaptivity of applications on network on chip multiprocessors : the case of fault-tolerant Kahn process networks

Derin, Onur ; Sami, Mariagiovanna (Dir.)

Thèse de doctorat : Università della Svizzera italiana, 2015 ; 2015INFO010.

Technology scaling accompanied with higher operating frequencies and the ability to integrate more functionality in the same chip has been the driving force behind delivering higher performance computing systems at lower costs. Embedded computing systems, which have been riding the same wave of success, have evolved into complex architectures encompassing a high number of cores interconnected...

Università della Svizzera italiana

Local time stepping on high performance computing architectures : mitigating CFL bottlenecks for large-scale wave propagation

Rietmann, Max ; Schenk, Olaf (Dir.)

Thèse de doctorat : Università della Svizzera italiana, 2015 ; 2015INFO006.

Modeling problems that require the simulation of hyperbolic PDEs (wave equations) on large heterogeneous domains have potentially many bottlenecks. We attack this problem through two techniques: the massively parallel capabilities of graphics processors (GPUs) and local time stepping (LTS) to mitigate any CFL bottlenecks on a multiscale mesh. Many modern supercomputing centers are installing...

Università della Svizzera italiana

Scalable space-time adaptive simulation tools for computational electrocardiology

Krause, Dorian ; Krause, Rolf (Dir.)

Thèse de doctorat : Università della Svizzera italiana, 2013 ; 2013INFO004.

This work is concerned with the development of computational tools for the solution of reaction-diffusion equations from the field of computational electrocardiology. We designed lightweight spatially and space-time adaptive schemes for large-scale parallel simulations. We propose two different adaptive schemes based on locally structured meshes, managed either via a conforming coarse...