QR_map_reduce

QR factorization for map reduce architecture

Computing a QR factorization of a tall-and-skinny matrix for nearly-terabyte sized matrices on MapReduce architectures

Implementing the algorithm proposed in https://stanford.edu/~arbenson/papers/mrtsqr-bigdata2013.pdf using hadopp

How to run

1. Compile

   javac -classpath hadoop-0.18.3-core.jar:commons-logging-1.1.3.jar:Jama-1.0.3.jar -d classes Decomposition.java

2. Create the executable

   jar -cvf Decomposition.jar -C classes/ .

3. Run

   bin/hadoop jar Decomposition.jar org.myorg.Decomposition my_input my_output

Prerequisites

• hadoop
• commons-logging
• jama