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Although the community sees overlapping communication and computation as a perspective avenue for advancing parallel execution, it remains unclear what type of applications, under which conditions, and to which extent could benefit from this technique. To tackle this issue, we designed a simulation environment that allowed us to profoundly study overlap. We found out that overlapping potential in...
GPUs are at the fore-front of a radical transformation that is taking place in software design. The ability to process multiple data streams simultaneously is delivering substantial benefits to a large collection of domains. Depending on the application, these benefits can be expanded by utilizing the not-insignificant power of traditional CPUs. Multi-core CPUs with a hierarchy of large and fast caches,...
The numerical method presented by Arakawa in 1966[3] implements a finite difference scheme of the Jacobian for the solution of the equation of motion for two-dimensional incompressible flows, which diminishes nonlinear computational instability and permits long-term numerical integrations. This paper presents an efficient implementation of Arakawa's formula using vectorized Streaming SIMD Extension...
Recently, there have been several developments in the scientific community to model and solve complex optimization problems by employing natural metaphors. In some cases, due to their distributed schema, these algorithms can be adapted to distributed computing environments. A distributed and asynchronous bees (DAB) grid-based approach is here used to optimise the magnetic configuration in order to...
ISDEP (Integrator of Stochastic Differential Equations for Plasmas) is a Monte Carlo code that solves the plasma dynamics in a fusion device and perfectly scales on distributed computing platforms. Montera is a recent framework developed for achieving Grid efficient executions of Monte Carlo applications, as ISDEP is. In this work, the improvement of performing the calculations of ISDEP with Montera,...
Within the fusion community, a large number of codes are in use to simulate various aspects of the plasma behaviour. Many codes have been written by physicists with a big emphasis on the physics without using the latest technologies available in computer science. For improving this situation, a project with acronym EUFORIA was created. The main target of this project is to increase the performance...
3D integration enables building caches from different types of technologies such as SRAM, Magnetic RAM (MRAM), DRAM, and Phase-change RAM (PRAM). Hybrid cache architectures (HCAs) have been proposed to take advantage of the benefits offered by these types of technologies. Employing this novel cache architecture to build shared caches in chip multiprocessors (CMPs) can lead to significant performance...
A new implementation of the finite element method(FEM) that is suitable for the Cell processor. Since the Cell processors have a far greater performance and lower byte per-flop (B/F) rate than traditional scalar processors, the amount of memory transfer was reduced and a technique was used to hide the number of memory accesses. The amount of memory transfer was reduced by accepting additional floating-point...
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