Parallel Colt

Parallel Colt

Original author(s)	Piotr Wendykier
Stable release	0.9.4 / March 21, 2010
Operating system	Cross-platform
Type	Library
License	Various
Website	sites.google.com/site/piotrwendykier/software/parallelcolt

Parallel Colt is a set of multithreaded version of Colt. It is an collection of open Source libraries for High Performance Scientific and Technical Computing written in Java. It contains all the original capabilities of Colt and adds several new ones, with a focus on multi-threaded algorithms.

Capabilities

Parallel Colt has all the capabilities of the original Colt library, with the following additions.^[1]

• Multithreading
• Specialized Matrix data structures
• JPlasma
  • Java port of PLASMA (Parallel Linear Algebra for Scalable Multi-core Architectures).
• CSparseJ
  • CSparseJ is a Java port of CSparse (a Concise Sparse matrix package).
• Netlib-java
  • Netlib is a collection of mission-critical software components for linear algebra systems (i.e. working with vectors or matrices).
• Solvers and preconditioners
  • Mostly adapted from Matrix Toolkit Java
• Nonlinear Optimization
  • Java translations of the 1-dimensional minimization routine from the MINPACK
• Matrix reader/writer
• All classes that use floating point arithmetic are implemented in single and double precision.
• Parallel quicksort algorithm

Usage Example

Example of Singular Value Decomposition (SVD):

DenseDoubleAlgebra alg = new DenseDoubleAlgebra();
DenseDoubleSingularValueDecomposition s = alg.svd(matA);

DoubleMatrix2D U = s.getU();
DoubleMatrix2D S = s.getS();
DoubleMatrix2D V = s.getV();

Example of matrix multiplication:

DenseDoubleAlgebra alg = new DenseDoubleAlgebra();
DoubleMatrix2D result = alg.mult(matA,matB);

References

1. Official site "Parallel Colt Project Page". Parallel Colt. Retrieved June 15, 2013.