Divide-and-conquer algorithms for multiprocessors

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1991
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Mukkavilli, Lakshmankumar
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Gurpur M. Prabhu
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Computer Science

Computer Science—the theory, representation, processing, communication and use of information—is fundamentally transforming every aspect of human endeavor. The Department of Computer Science at Iowa State University advances computational and information sciences through; 1. educational and research programs within and beyond the university; 2. active engagement to help define national and international research, and 3. educational agendas, and sustained commitment to graduating leaders for academia, industry and government.

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The Computer Science Department was officially established in 1969, with Robert Stewart serving as the founding Department Chair. Faculty were composed of joint appointments with Mathematics, Statistics, and Electrical Engineering. In 1969, the building which now houses the Computer Science department, then simply called the Computer Science building, was completed. Later it was named Atanasoff Hall. Throughout the 1980s to present, the department expanded and developed its teaching and research agendas to cover many areas of computing.

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1969-present

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During the past decade there has been a tremendous surge in understanding the nature of parallel computation. A number of parallel computers are commercially available. However, there are some problems in developing application programs on these computers;This dissertation considers various issues involved in implementing parallel algorithms on Multiple Instruction Multiple Data (MIMD) machines with a bounded number of processors. Strategies for implementing divide-and-conquer algorithms on MIMD machines are proposed. Results linking time complexity, communication complexity and the complexity of divide-and-combine functions of divide-and-conquer algorithms are analyzed. An efficient criterion for partitioning a parallel program is proposed and a method for obtaining a closed form expression for time complexity of a parallel program in terms of problem size and number of processors is developed.

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Tue Jan 01 00:00:00 UTC 1991