Abstract
We present a parallel algorithm for computing an optimal sequence alignment in efficient space. The algorithm is intended for a message-passing architecture with one-dimensional-array topology. The algorithm computes an optimal alignment of two sequences of lengthsM andN inO((M+N) 2 /P) time andO((M+N)/P) space per processor, where the number of processors isP>=max(M, N). Thus, whenP=max(M, N) it achieves linear speedup and requires constant space per processor. Some experimental results on an Intel hypercube are provided.
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