Some Theorems to Aid in Solving the File Allocation Problem

  title={Some Theorems to Aid in Solving the File Allocation Problem},
  author={Enrique Grapa and Geneva G. Belford},
  journal={Commun. ACM},
The file allocation problem — i.e. the problem of finding the optimal set of network sites at which to locate copies of a file — is known to be, in general, polynomial complete. Heuristics and other aids to finding optimal, or near-optimal, solutions are therefore much needed. In this paper we present three theorems which can be applied a priori to indicate that certain sites should (or should not) be included in an optimal allocation. 
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