To better accommodate the highly disparate length scales encountered in geophysical flows, we have extended EULAG with a solution-adaptive moving mesh capability [1]. The development builds on [2], where the authors set forth a time-dependent curvilinear coordinate formulation of the governing PDEs to enable dynamic mesh adaptivity in EULAG. Here, the anelastic flux-form dynamical core of EULAG...

Abstract. This work proposes a new FE model to predict dynamic crack propagation mechanisms in quasi-brittle materials. The numerical strategy uses Moving Mesh (MM) technique consistent with the Arbitrary Lagrangian-Eulerian (ALE) formulation reproduce variation of geometry computational domain caused by dynamically growing cracks. Specifically, motion mesh nodes takes place consistently condit...

Absb.ad-Industry acceptance of TINA (Telecommunications Information Networking Architecture) will depend heavily on both the evaluation of working systems that implement this architecture, and on the experiences obtained during the design and implementation of these systems. During the MESH' (Multimedia services on the Electronic Super Highway) project, a TINA based platform for networked multi...

Adaptive mesh reenement is a key problem in large-scale numerical calculations. The need of adaptive mesh reenement could introduce load imbalance among processors, where the load measures the amount of work required by reenement itself as well as by numerical calculations thereafter. We present a dynamic load balancing algorithm to ensure that the work load are balanced while the communication...

Multi-hop wireless mesh network experience link-failure due to channel interference, dynamic obstacles etc. which causes performance degradation of the network in Wireless Mesh Networks. The paper proposes “Autonomously Reconfigurable Wireless Mesh Networks system based upon IEEE 802.11” for mr-WMN to recover autonomously in case the network failure occurs, to improve the network performance. T...

Dynamic mesh adaption on unstructured grids is a powerful tool for computing unsteady flows that require local grid modifications to efficiently resolve solution features. For this work, we consider an edge-based adaption scheme that has shown good single-processor performance on the C90. We report on our experience parallelizing this code for the SP2. Results show a 47.0X speedup on 64 process...

This paper presents a method for normal map generation in the GPU. These normal maps are generated from a high resolution mesh and can be applied to any simplification of this mesh. This method takes advantage of the fact that there must be a correspondence between the texture coordinates of the low resolution mesh and the ones of the high resolution mesh. The proposed method for normal map gen...

In this paper we present dynamic adaptive meshes, a scheme for maintaining a conforming triangulation of time-varying surfaces. The user supplies an initial mesh, a surface sampling procedure and a set of adaptation criteria. The mesh is automatically modified in order to conform to user defined characteristics, while the surface changes over time. Our scheme is very simple to implement. It emp...

Characterizing the dynamic behavior of parallel programs in terms of their execution profile helps to understand their behavior and suggest optimization strategies to improve the performance. Traditional event tracing techniques write the profiled data to trace files. Using the traditional approach for fine grained profiling not only yields large unwieldy trace files but often also gives skewed...

Realistic simulation and manipulation of virtual cloth based on energy minimization techniques require higher computations. A model realizing force as well as shape to manipulate the virtual cloth demands even more computational cost. Mesh resolution of cloth has a great effect on the computational cost of cloth simulation. Therefore, granularity of mesh must be chosen in a manner that represen...