<< a parallel grep to search a single large file >> I'm but one user, and a rather idiosyncratic user at that, but for my usage patterns, the specialized logic that it would take to run a parallelized grep on a large file would likely not shrink the elapsed time enough to justify the coding, documentation, and maintenance effort.
I would expect the time to read the large file in from disk to dominate the total elapsed time in any case. (or maybe I am just jealous that I didn't think of that parallel grep use case myself <grin>.) -- Paul Jackson p...@usa.net