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From Apache Wiki <wikidi...@apache.org>
Subject [Hadoop Wiki] Trivial Update of "Hama" by udanax
Date Wed, 05 Mar 2008 14:00:35 GMT
Dear Wiki user,

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The following page has been changed by udanax:
http://wiki.apache.org/hadoop/Hama

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  Currently, several shared-memory based parallel matrix solutions can provide a scalable
and high performance matrix operations, but matrix resources can not be scalable in the term
of complexity.  The '''Hama''' approach proposes the use of 2-dimensional Row and Column(Qualifier)
space and multi-dimensional Columnfamilies of Hbase, which is able to store large sparse and
various type of matrices (e.g. Triangular Matrix, 3D Matrix, and etc.).  In addition, auto-partitioned
sparsity sub-structure will be efficiently managed and serviced by Hbase. Row and Column operations
can be done in linear-time, where several algorithms such as structured Gaussian elimination
and iterative methods run in O(~-the number of non-zero elements in the matrix-~ / ~-number
of mappers (processors/cores)-~) time on Hadoop Map/Reduce. 
  === Initial Contributors ===
-  * [:udanax:Edward Yoon] (R&D center, NHN corp.) 
-  * Chanwit Kaewkasi (Ph.D candidate, University of Manchester)
+  * Edward Yoon ([mailto:edward@udanax.org edward AT SPAMFREE udanax DOT org])
+  * Chanwit Kaewkasi ([mailto:chanwit@gmail.com chanwit AT SPAMFREE gmail DOT com])
  === Initial Source ===
   * http://code.google.com/p/hama/source/checkout
  === Dependencies ===

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