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U.S. Department of Energy
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Randomized parallel branch-and-bound algorithm

Technical Report ·
OSTI ID:6140398
A new technique for the parallel execution of branch-and-bound algorithms using randomization is proposed. The algorithm requires relatively little inter-processor communication, while achieving good speedups over the uniprocessor execution times; in precisely those cases where the problem size becomes very large, randomization is found to be extremely successful in achieving very good speedups. A probabilistic model was devised to explore the effectiveness of this technique, and to estimate the expected speedups that could be obtained. The model was validated by extensive simulation work on a multiprocessor simulator. Besides being very simple to implement, the technique also ensures high reliability, flexibility, and fault tolerance.
Research Organization:
North Carolina State Univ., Raleigh (USA)
OSTI ID:
6140398
Report Number(s):
AD-A-204860/1/XAB
Country of Publication:
United States
Language:
English

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