Distributed memory matrix-vector multiplication and conjugate gradient algorithms
Published: Jan 1, 1993
Abstract
The critical bottlenecks in the implementation of the conjugate gradient algorithm on distributed memory computers are the communication requirements of the sparse matrix-vector multiply and of the vector recurrences. The data distribution and communication patterns of five general implementations whose realizations demonstrate that the cost of communication can be overcome to a much larger extent than is often assumed are described. The results...
Paper Details
Title
Distributed memory matrix-vector multiplication and conjugate gradient algorithms
Published Date
Jan 1, 1993
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