On Dec 21 2009, 8:14 am, dinesh bansal <bansal...@gmail.com> wrote: > Hi All, > > Suppose I have a big file (~100M) containing integer data. I want to sort > this file. The problem is I don't want to load the complete file data into > main memory in one shot. I mean I can read the file in batches and sort the > batch and save it in another file but cannot store the entire file contents > in main memory. Can somebody help me with algorithm or pseudo code?
Google "external sort" and "multi-pass sort". This was a huge topic of research when RAM was expensive up through 1990 or so. If this is practical question, GNUsort implemented an external mergesort last time I looked at the sources. -- You received this message because you are subscribed to the Google Groups "Algorithm Geeks" group. To post to this group, send email to algoge...@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
