MatrixMagic

A scalable, CUDA accelerated set of linear algebra functions

This library is designed to make working with matricies and vectors simpler for the programmer. Simply #include the matrixMagic.h header file and use -L ./lib and -lMatrixMagic and they will provide you with access to the Matrix class and various other functions.

So far, this provides the user with:

• The Matrix object. You use this for both matricies and vectors, just specify which dimension is of size 1 with .setMatrix
  • .transpose() will transpose your matrix or vector for you
  • .readMatrix() provides you with a simple way to read in a matrix from a file into the object
  • .setMatrix() allows you to define a 1 or 2 dimensional array on the heap and pass it and the dimensions into the object
  • .getMatrix() will return a pointer to the internal double array. For the sake of simplicity, all 2 dimensional matricies are stored as a 1 dimensional array inside the object.
  • .getX() will return the size in the X dimension (i.e. number of columns)
  • .getY() will return the size in the Y dimension (i.e. number of rows)
  • .isVector() is used to query the object whether the matrix is a vector or not. This will return true if it is a vector and false if it isn't
  • .empty() will delete the internal double array
  • .LUDecomp() will factor the matrix inside the object using LU Decomposition
• Also provided is a simple to use multiply() function. This can be used to do Matrix Vector or Vector Vector operations. Also supported is multiplication of 2 square matrices

And many more functions/features are in the works including a Conjugate Gradient routine to compute Ax = b.

As of now, all functions and objects are defined inside the main header file. This will be changed in the future to be more like a typical C++ library.

To recompile the MatrixMagic shared library, simply run:

$ make

To compile all the tests, run:

$ make tests

Files

matrix.txt -- Small test matrix
vector.txt -- Small test vector matrixMagic.h -- Contains the Matrix class
s3dkt3m2.dat -- Part of a matrix from the Matrix Market
makefile -- Allows you to make the shared library and to compile all the tests test/ -- Directory that contains test code for each of MatrixMagic's features and functions.