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  • Google Snaps Up On2 (10 Comments)

  • Bijective BWT (34 Comments)

    David Scott has written a bijective BWT transform, which brings all the advantages of bijectiveness to BWT based compressors. Among other things, making BWT more suitable for compression-before-encryption and also give (slightly) better compression.

  • Asymmetric Binary System (171 Comments)

    Jarek Duda’s “Asymmetric Binary System” promises to be an alternate to arithmetic coding, having all the advantages, but being much simpler. Matt has coded a PAQ based compressor using ABS for back-end encoding. Update: Andrew Polar has written an alternate implementation of ABS.

  • Precomp: More Compression for your Compressed Files (6 Comments)

    So many of today’s files are already compressed (using old, outdated algorithms) that newer algorithms don’t even get a chance to touch them. Christian Schneider’s Precomp comes to rescue by undoing the harm.

  • On2 Technologies is Hiring (5 Comments)

    There aren’t too many companies working on cutting edge codecs, and of those few this one is hiring. Best of luck.

mpibzip2 - parallel bzip2 for cluster machines

Posted by Sachin Garg on 20th August 2007 | Permanent Link

Jeff Gilchrist has released mpibzip2, a parallel implementation of the popular bzip2 block-sorting file compressor that uses MPI and achieves significant speedup on cluster machines.

Similar to his pbzip2 multi-threaded bzip2, the output is fully compatible with bzip2. The results show a near linear speed-up for upto 30 nodes.

Source code is available under BSD style license.

2 Responses to “mpibzip2 - parallel bzip2 for cluster machines”

  1. maryam akmal Says:

    hey ..
    im studing course of parallel computing.i have to make a project.i have choosen file compression .can any one please help me out..can any one please provide me the source code…:(

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