Changes between Initial Version and Version 1 of application_pages/apps/java/matmul

Timestamp:

10/26/15 09:33:43 (9 years ago)

Author:

trac

Comment:

--

application_pages/apps/java/matmul

@@ +1 @@
+[[PageOutline]]
+
+= Application Name =
+
+Matrix Multiplication
+
+= Summary =
+
+* '''Name''': {{{Matrix Multiplication}}}
+* '''Contact Person''': {{{support-compss@bsc.es}}}
+* '''Access Level''': {{{public}}}
+* '''License Agreement''': {{{GPL}}}
+* '''Platform''': {{{COMPSs}}}
+* '''Repository''': [[https://compss.bsc.es/svn/bar/apps/java/matmul|Matrix Multiplication]]
+
+
+ == Description ==
+Matrix multiplication is a binary operation that takes a pair of matrices and produces another matrix.
+
+If A is an n×m matrix and B is an m×p matrix, the result AB of their multiplication is an n×p matrix defined only if the number of columns m in A is equal to the number of rows m in B. When multiplying A and B, the elements of the rows in A are multiplied with corresponding columns in B.
+
+In this implementation, A and B are square matrices (same number of rows and columns), and so it is the result matrix C. Each matrix is divided in N blocks of M doubles. The multiplication of two blocks is done by a multiply task method with a simple three-nested-loop implementation. When executed with COMPSs, the main program generates N^3^ tasks arranged as N^2^ chains of N tasks in the dependency graph.
+
+
+== Versions ==
+There are three versions of Matrix Multiplication, depending on the data types used to store the blocks.
+=== Version 1 ===
+''files'', where the matrix blocks are stored in files.
+=== Version 2 ===
+''objects'', where the matrix blocks are represented by objects.
+=== Version 3 ===
+''arrays'', where the matrix blocks are stored in arrays.
+
+
+== Execution instructions ==
+Usage:
+runcompss matmul.objects.Matmul  <MSIZE> <BSIZE>
+runcompss matmul.files.Matmul  <MSIZE> <BSIZE>
+runcompss matmul.arrays.Matmul  <MSIZE> <BSIZE>
+
+
+where:
+                 * - MSIZE: Number of blocks of the matrix
+                 * - BSIZE: Number of elements per block
+
+
+== Execution Example ==
+runcompss matmul.objects.Matmul 16 4
+
+
+== Build ==
+=== Option 1: Native java ===
+cd ~/workspace_java/matmul/; javac src/main/java/matmul/*/*.java
+cd src/main/java/; jar cf matmul.jar matmul/
+cd ../../../; mv src/main/java/matmul.jar jar/
+
+=== Option 2: Maven ===
+cd ~/workspace_java/matmul/
+mvn clean package