Changes between Version 39 and Version 40 of DataParallel/Dec2010Release


Ignore:
Timestamp:
Feb 22, 2011 9:13:38 AM (3 years ago)
Author:
simonpj
Comment:

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  • DataParallel/Dec2010Release

    v39 v40  
    5656  * Evens [OK (but more than 3 times slower than C; any improvement since #4830 was fixed?)] 
    5757    * rl reckons this is due to GHC compiling modulo of powers of two inefficiently; c.f., #3065 (in `packByTags`) 
    58   * SMVM (blocked on optimisation of lifted indexing) '''[BROKEN]''' '''[BEN & ROMAN]'''  Roman is thinking about this over Xmas. 
     58  * SMVM (blocked on optimisation of lifted indexing) '''[BROKEN]''' '''[BEN & ROMAN]'''  Roman thinks he knows how to solve this, by changing our array representation to allow replicate in constant time/space. 
    5959 * Dynamically-nested DPH programs without user-defined datatypes should run correctly and scale, but absolute performance may be lacking 
    6060  * Quicksort [BROKEN (SpecConstr loop when using `-dph-seq`) & SLOW] [SIMON & BEN]