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Showing 1 to 20 of 31 for “"Parallel machine"”.
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Production/inventory policies for a parallel machine manufacturing system
Thesis (M.B.A.)--Massachusetts Institute of Technology, Sloan School of Management; and, (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1999.
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A Robust Reactive Scheduling System with Application to Parallel Machine Scheduling
… performance measure or more. Resources may be machines in a factory, operating rooms in a hospital, or employees in a company, while activities can be jobs in a manufacturing plant, surgeries in a hospital, or paper work in a company. The goal of each schedule is to optimize some performance …
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Parallel Machine Scheduling in Manufacturing Systems: Impact of a Shared Resource and Multiple Stages
… at two stages. Each stage consists of identical parallel machines. The processing time is assumed to include the setup time. This problem is also modeled as a mathematical program. Solution approaches and lower bounding procedures are discussed. I develop lower bounds and heuristic approaches and …
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High-performance parallel programming framework using template-based static optimization
How to program a parallel machine has always been a major research problem. Many tools, languages and libraries are developed in order to make parallel programming more accessible for most users. However, no matter what approach is taken to program a parallel machine, there is always a trade-off …
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Towards power of preemption on parallel machines
… processing of jobs, and those that do not. In parallel machine environments, scheduling problems for models which allow parallel processing of jobs are typically easier to solve, in terms of computational requirements, while these models are in the majority of cases associated with an improved …
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Impostors for Parallel Interactive Computer Graphics
We demonstrate an interactive parallel rendering system based on the impostors technique. Impostors increase the latency tolerance of an interactive rendering system, which allows us to use the power of a parallel machine even at high resolutions and framerates. Impostors also decrease the required …
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A strategy for mapping unstructured mesh computational mechanics programs onto distributed memory parallel architectures
… advantages offered by distributed memory parallel processors. Strategies that successfully map structured mesh codes onto parallel machines have been developed over the previous decade and used to build a toolkit for automation of the parallelisation process. Extension of the capabilities …
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Formulações de elementos finitos bi e tridimensionais para simulação em paralelo de escoamentos em reservatórios de petróleo
… formulations oriented to distributed memory parallel machines are proposed and analized to simulate incompressible miscible flow in porous media with applicationto petroleum reservoir engineering. The mathematical model consists in a system of a partial differential equations given by an …
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Scheduling algorithms to improve utilization in toroidal-interconnected systems
BlueGene/L is a massively parallel cellular architecture system with a toroidal inter-connect, currently being developed at the IBM T.J.Watson Research Center. Cellular architectures with a toroidal interconnect are effective at producing highly scalable computing systems, but typically require job …
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Efficient Parallelization of 2D Ising Spin Systems
The problem of efficient parallelization of 2D Ising spin systems requires realistic algorithmic design and implementation based on an understanding of issues from computer science and statistical physics. In this work, we not only consider fundamental parallel computing issues but also ensure that …
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Topological analysis of singularity loci for serial and parallel manipulators
… in the jointspace. On the other hand, parallel singularities are very dangerous for parallel manipulators, for they may provoke the local loss of platform control, and jeopardize the structural integrity of links or actuators. It is therefore utterly important to avoid parallel …
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Quantitative Methods For Select Problems In Facility Location And Facility Logistics
… three logistics problems. The first problem is a parallel machine scheduling problems that considers multiple unique characteristics including release dates, due dates, limited machine availability and job splitting. The objective of is to minimize the total amount of time required to complete …
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ADAM : a decentralized parallel computer architecture featuring fast thread and data migration and a uniform hardware abstraction
… a simple, uniform fine-grained multithreaded parallel programming model with implicit memory management. In other words, the spatial nature and implementation details (such as the number of processors) of a parallel machine are entirely hidden from the programmer. Compiler writers are …
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PolyAPM: Comparative Parallel Programming with Abstract Parallel Machines
A parallelising compilation consists of many translation and optimisation stages. The programmer may steer the compiler through these stages by supplying directives with the source code or setting compiler switches. However, for an evaluation of the effects of individual stages, their selection and …
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Enhanced Lanczos Algorithms for Solving Systems of Linear Equations with Embedding Interpolation and Extrapolation
… the implementation of EIEMLA sequentially and in parallel on a standard parallel machine provided locally and on a Cloud Computing platform, namely Domino Data Lab. Through these implementations, we have shown that problems with up to $10^6$ variables and equations can be solved with the new …
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A hybrid type small 5-axis CNC milling machine
5-axis CNC milling machines are important in a number of industries ranging from aerospace to consumer-die-mold machining because they can deliver high machining accuracy with a spindle tilting capacity. Most of these machines have serial mechanisms so that low static and dynamic stiffness become …
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Fast Fourier Transforms on Distributed Memory Parallel Machines
… purpose subroutine on a distributed memory parallel machine is the data distribution. It is possible that users would like to use the subroutine with different data distributions. Thus there is a need to design algorithms on distributed memory parallel machines which can support a variety of …
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Message passing interface implementation for Concordia parallel programming environment
… Passing interface (MPI) [1] for the Concordia Parallel Programming Environment (CPPE), an environment for parallel computing simulation. The purpose of this project is to provide Message Passing Interface (MPI) support for CPPE, so that user can get access to MPI programming with CPPE. Also the …
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