A problem like that one could be handled by scanning all the files ahead of time and pushing the lookup values into a database table. This would avoid the need to “look for” the answers you want, which could largely defeat your efforts at parallelization. A pre-scanner could loop through the directory, query to see if it has seen this particular file before, and if not, grab the lookups and store them. Each time, it would only consider new files. (In the database table, you could also note whether a particular file had already been processed. Something like an SHA1 hash could be used to recognize changes.)
This, once again, could be used to reduce the problem to a single-process handler that can be run in parallel with itself on the same and/or different systems.
By all means, if you have now hit-upon a procedure that works, I am not suggesting that you rewrite it.
Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
Read Where should I post X? if you're not absolutely sure you're posting in the right place.
Please read these before you post! —
Posts may use any of the Perl Monks Approved HTML tags:
You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
- a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.
| & || & |
| < || < |
| > || > |
| [ || [ |
| ] || ] ||