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From Apache Wiki <wikidi...@apache.org>
Subject [Hadoop Wiki] Update of "Matrix" by udanax
Date Tue, 29 Jan 2008 01:47:31 GMT
Dear Wiki user,

You have subscribed to a wiki page or wiki category on "Hadoop Wiki" for change notification.

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

------------------------------------------------------------------------------
  
  === Getting Start ===
  {{{
- bash-3.00# bin/hadoop jar ./lib/hadoop-0.16.0-dev-hbase.jar org.apache.hadoop.hbase.matrix.ExampleDriver
multiply 4 4 2
+ bash# ./bin/hadoop jar ./lib/hadoop-0.16.0-dev-hbase.jar org.apache.hadoop.hbase.matrix.ExampleDriver
- 
- Matrix Space initializing on Hbase.... Please wait.
- Create 4 by 4 Random Matrix A
- 4.0     1.0     4.0     2.0
- 1.0     4.0     4.0     1.0
- 1.0     4.0     2.0     5.0
- 1.0     3.0     5.0     3.0
- 
- Matrix Space initializing on Hbase.... Please wait.
- Create 4 by 4 Random Matrix B
- 1.0     5.0     4.0     2.0
- 1.0     3.0     1.0     4.0
- 4.0     2.0     4.0     2.0
- 3.0     2.0     5.0     3.0
- Matrix Space initializing on Hbase.... Please wait.
- A * B multiplication start.
- 08/01/29 10:16:51 INFO fs.DFSClient: Allocating new block
- ...
- 08/01/29 10:17:07 INFO mapred.JobClient:     Reduce output records=4
- 
- Computation Time : (16.67 sec)
- Matrix C result.
- 27.0    35.0    43.0    26.0
- 24.0    27.0    29.0    29.0
- 28.0    31.0    41.0    37.0
- 33.0    30.0    42.0    33.0
- 08/01/29 10:17:17 INFO hbase.HBaseAdmin: table C deleted
- 08/01/29 10:17:27 INFO hbase.HBaseAdmin: table A deleted
- 08/01/29 10:17:38 INFO hbase.HBaseAdmin: table B deleted
  }}}
  
+ == References ==
+ 
+  * [http://bebop.cs.berkeley.edu/oski/ OSKI], optimized sparse kernel interface (OSKI) library
+   * [http://icl.cs.utk.edu/iclprojects/pages/files/sans/yelick-bebop.pdf Automatic Performance
Tuning of Sparse Matrix Kernels], August 7, 2002
+  * Parallel Conjugate Gradients Assignment, a parallel implementation of the conjugate gradient
algorithm
+  * ScaLAPACK, a library of high-performance linear algebra routines for distributed-memory
message-passing MIMD computers 
+  * Scheduling algorithms for parallel Gaussian elimination withcommunication costs, Amoura,
A.K.; Bampis, E.; Konig, J.-C.
+  * High performance numerical libraries in Java, Bjørn-Ove Heimsund
+ 

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