We develop scalable algorithms and object-oriented code frameworks for terascale scientific simulations on massively parallel processors (MPPs). Our research in multigrid-based linear solvers and adaptive mesh refinement enables Laboratory programs to use MPPs to explore important physical phenomena. For example, our research aids stockpile stewardship by making practical detailed 3D simulations of radiation transport. The need to solve large linear systems arises in many applications, including radiation transport, structural dynamics, combustion, and flow in porous media. These systems result from discretizations of partial differential equations on computational meshes. Our first research objective is to develop multigrid preconditioned ...
The largest runs up-to-now are usually performed for simple symmetric positive definite systems. It ...
Computational Fluid Dynamics (CFD) is an important field in high performance computing with numerous...
In the past few years, High Performance Computing (HPC) technologies led to General Purpose Processi...
Computational grids and grid middleware offer unprecedented computational power and storage capacity...
Computational grids and grid middleware offer unprecedented computational power and storage capacity...
Computers will soon reach exascale performance, i.e. the capability to perform more than 10^18 FLOPS...
Computers will soon reach exascale performance, i.e. the capability to perform more than 10^18 FLOPS...
International audienceScientific computing has become an indispensable tool in numerous fields, such...
International audienceScientific computing has become an indispensable tool in numerous fields, such...
We present the design of software packages called Particle Movers that have been developed to simula...
From careful observations, scientists derive rules to describe phenomena in nature. These rules are ...
AbstractThe execution of scientific codes will introdu ce a number of new challenges and intensify s...
Two simulations of continuum models on the JUQUEEN supercomputer are presented: permeation of substa...
We have taken a Grand Challenge 3d Multi-Grid code, initially developed on the Cray C-90 and subsequ...
Parallel supercomputing has traditionally focused on the inner kernel of scientific simulations: the...
The largest runs up-to-now are usually performed for simple symmetric positive definite systems. It ...
Computational Fluid Dynamics (CFD) is an important field in high performance computing with numerous...
In the past few years, High Performance Computing (HPC) technologies led to General Purpose Processi...
Computational grids and grid middleware offer unprecedented computational power and storage capacity...
Computational grids and grid middleware offer unprecedented computational power and storage capacity...
Computers will soon reach exascale performance, i.e. the capability to perform more than 10^18 FLOPS...
Computers will soon reach exascale performance, i.e. the capability to perform more than 10^18 FLOPS...
International audienceScientific computing has become an indispensable tool in numerous fields, such...
International audienceScientific computing has become an indispensable tool in numerous fields, such...
We present the design of software packages called Particle Movers that have been developed to simula...
From careful observations, scientists derive rules to describe phenomena in nature. These rules are ...
AbstractThe execution of scientific codes will introdu ce a number of new challenges and intensify s...
Two simulations of continuum models on the JUQUEEN supercomputer are presented: permeation of substa...
We have taken a Grand Challenge 3d Multi-Grid code, initially developed on the Cray C-90 and subsequ...
Parallel supercomputing has traditionally focused on the inner kernel of scientific simulations: the...
The largest runs up-to-now are usually performed for simple symmetric positive definite systems. It ...
Computational Fluid Dynamics (CFD) is an important field in high performance computing with numerous...
In the past few years, High Performance Computing (HPC) technologies led to General Purpose Processi...