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667801
2012 May 02
6
Quickest way to make a large "empty" file on disk?
R-helpers:
What would be the absolute fastest way to make a large "empty" file (e.g.
filled with all zeroes) on disk, given a byte size and a given number
number of empty values. I know I can use writeBin, but the "object" in
this case may be far too large to store in main memory. I'm asking because
I'm going to use this file in conjunction with mmap to do parallel