#15 Can p7zip add PPMd 64-bit and multi-threading

closed
nobody
None
5
2007-10-14
2007-10-14
l1t
No

pmdj1 add Support for 64-bit and multi-threading
Apr 28, 2002 var.I(t is final too)
CutOff and Freeze modes were added;
References to papers were corrected;
CC rate - 2.097/1.963bpb;
Apr 30, 2002 var.I rev.1
One defect in PPMonstr was fixed, this revision of PPMonstr is not
compatible with previous one;
Feb 16, 2006 var.J(ust a final)
Support for 64-bit processors and multi-threading was added;
CC rate - 2.093/1.891bpb;
May 10, 2006 var.J rev.1
Bug for solid mode in PPMd is fixed;

Discussion

  • l1t

    l1t - 2007-10-14
     
  • my space

    my space - 2007-10-14

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    p7zip's PPMD already runs on 64-bit processors.

    multi-threading would be good for QuadCore processors.

     
  • my space

    my space - 2007-10-14
    • status: open --> closed
     
  • my space

    my space - 2007-10-14

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    I looked at the ppmdj1.rar code.
    The compressor/decompressor is not multi-threaded (:

    In ppmdj1.rar, you can now compress/decompress files in several threads.

    p7zip's PPMd is already thread safe ...

    So your Feature Request is already granted ;)

     

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