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Tuesday, February 11, 2020 | History

3 edition of Parallel grid generation algorithm for distributed memory computers found in the catalog.

Parallel grid generation algorithm for distributed memory computers

Parallel grid generation algorithm for distributed memory computers

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  • 19 Currently reading

Published by National Aeronautics and Space Administration, Langley Research Center, National Technical Information Service, distributor in Hampton, Va, [Springfield, Va .
Written in English

    Subjects:
  • Numerical grid generation (Numerical analysis)

  • Edition Notes

    StatementStuti Moitra, Anutosh Moitra.
    SeriesNASA technical paper -- 3429., NASA technical paper -- 3429.
    ContributionsMoitra, Anutosh., Langley Research Center.
    The Physical Object
    FormatMicroform
    Pagination1 v.
    ID Numbers
    Open LibraryOL14705088M

    In the United States, the National Technology Grid is prototyping a computational grid for infrastructure and an access grid for people. It has been a subject of extensive research in combinatorial optimization because of its importance in theoretical and practical domain. See also: Analysis of parallel algorithms Algorithms vary significantly in how parallelizable they are, ranging from easily parallelizable to completely unparallelizable. The concepts of client and server are powerful functional abstractions.

    By some estimates, advances in gene sequencing technology will make gene-sequence data available more quickly than processors are getting faster. It is the same sort of mutual understanding that allows traffic going in multiple directions to safely use an intersection. There is a single server that provides a service, and multiple clients that communicate with the server to consume its products. Moreover, improvements in terms of quality, speed, and functionality are open ended which makes the task of creating leading edge parallel mesh generation codes challenging. Coleman, T. Figure 8.

    Still the preprocessing step of mesh generation remains a sequential bottleneck in the simulation cycle. The shared memory is used to staging data during the computation: all local subpopulations of each island stay in the shared memory. The neighborhood of a given point in the mesh is defined in terms of Manhattan distance from it to its neighbor points. Conceptually, the problem is trying to find the optimal assignment of n facilities to n locations, knowing the distances between facilities and the flow between locations.


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Parallel grid generation algorithm for distributed memory computers book

The offspring is generated by the winner among the possible solutions according to its neighborhood. A nature way to implement the binary GA is to pack multiple bits into a non-Boolean data type, typically packing 32 bits into one unit for processing [ 11 ].

In a shared memory model, different processes may execute different statements, but any statement can affect the shared environment. For banking, unfortunately, this would mean that only one transaction could proceed at a time, since all transactions modify shared data.

Parallel mesh generation

However, there are other computational goals for which a more equal division of labor is a better choice. Moreover, improvements in terms of quality, speed, and functionality are open ended which makes the task of creating leading edge parallel mesh generation codes challenging.

A case study: multi-objective GAs for railway scheduling The railway scheduling problem consists of building the timetable of trains, moving on a railway network under certain constraints.

To circumvent physical and mechanical constraints on individual processor speed, manufacturers are turning to another solution: multiple processors. You can buy many different brands of remote for a modern TV, and they will all work.

Models such as Boolean circuits and sorting networks are used. Another drawback of client-server systems is that resources become scarce if there are too many clients. The only commonality between them is the "TV remote" interface.

Common migration topologies from [16]. In: Proc. Shared memory: the programmable cache Shared memory can be viewed as a programmable cache and is a key enabler for kernel performance.

An example of a computation that needs to proceed in steps a sequence of large-scale vector computations. The circled task in the middle string is the task being updated.

In the block layout, the fast dimension corresponds to the genes within a chromosome, while the slow dimension corresponds to different chromosomes, as shown in Figure 9.

They communicate with each other using messages, pieces of information transferred from one computer to another over a network. A promising approach to do this is the hybrid model of island and cellular model on modern GPUs. The common topology of the structure is a 2D toroidal mesh as shown in Figure 10which limits the interactions between individuals.Parallel Computational Fluid Dynamics Development and Applications of Parallel Technology.

Book • Self-Adaptive Grid-Generation for Complex Geometries in 3D. Book chapter Full text access. a distributed memory RISC massively parallel supercomputer, and is found to reduce the execution times at certain resolutions. Basic parallel and distributed computing curriculum.

Parallel computing

Basic parallel and distributed computing curriculum. a portable programming interface for shared memory parallel computers, was adopted. A parallel QZ algorithm for distributed memory HPC systems 3 In this paper, we focus on parallelizing the iterative part of the QZ algorithm which reduces a pair (H, T) in Hessenberg-triangular.

Parallel and Distributed Computing Chapter 5: Basic Communications Operations Several commercially available parallel computers data locality The best hypercube algorithm is also the best for other networks such as fat trees, meshes, and multistage networks.

Parallel, distributed, and grid-based data mining: algorithms, systems, and applications. proposed a parallelization of k-means algorithm on distributed memory.

Parallel explicit unstructured grid solvers on distributed memory computers. Domain [K] Fig. 3. Communication for a quadrangular mesh (fluxes accumulation).

Parallel explicit unstructured grid solvers edge belonging to [J] and one edge belonging to [K]. Three-dimensional parallel unstructured grid generation.

AIAAReno, NV Cited by: