Changes between Version 23 and Version 24 of DataParallel/Replicate

Show
Ignore:
Timestamp:
08/09/11 03:29:55 (22 months ago)
Author:
chak
Comment:

--

Legend:

Unmodified
Added
Removed
Modified

  • DataParallel/Replicate

    v23 v24  
    135135Arrays with repeated segments can not always be combined without duplicating the data corresponding to repeated segments (after all, a disjoint segment may be inserted into a sequence of repeated segments).  For simplicity, we may want to expand all repeated segments in `combinePA`.  (It seems that this should not lead to unexpected blow-ups as the repeated data now is part of a functions result and should be accounted for in its complexity estimate.) 
    136136 
    137 === Splitting and joining (for distribution across threads === 
     137=== Splitting and joining (for distribution across threads) === 
    138138 
    139139Our idea is to continue to split the '''data''' array evenly across threads.  That may spread out the segments descriptor (length and starts arrays) very unevenly as repeated segments have an entry for each repetition in the segmentation information, but not in the data.