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parrot-linear-algebra A linear algebra library package for the Parrot Virtual Machine == PROJECT GOALS == The goals of the Parrot-Linear-Algebra (PLA) project are to develop a good, high-performance linear algebra toolset for use with the Parrot Virtual Machine, and programs that run on top of Parrot. In pursuit of these goals, high-performance PMC matrix types will be developed, along with interfaces to the BLAS and LAPACK libraries for high-performance operations. In addition to these core goals, PLA may also provide a series of ancillary tools that are similar in implementation to it's high-performance core utilities. == STATUS == PLA is being actively developed. It has core PMC types that build, a build and installation system, and a growing test suite. PLA currently provides these PMC types: * NumMatrix2D A 2-D matrix containing floating point values. * PMCMatrix2D A 2-D matrix containing PMC pointers * ComplexMatrix2D A 2-D matrix containing Complex values, optimized to store complex values directly instead of using an array of Parrot's Complex PMC type. * CharMatrix2D (Testing) A 2-D character matrix that doubles as an array of strings with fixed-row-length storage. PLA does not yet offer matrix or tensor types with more than two dimensions. == DEPENDENCIES == PLA has several dependencies. To help manage dependencies, you may want to install Plumage http://gitorious.org/parrot-plumage This is not a dependency, just a convenience. Each PLA release will target different versions of the various dependencies. See the file RELEASES for information about individual releases and their dependencies. Here are a list of dependencies for PLA: * Parrot 2.7.0 PLA is an extension for Parrot and requires Parrot to build and run. Releases of PLA will target supported releases of Parrot. Supported releases are typically X.0, X.3, X.6, X.9. Releases for Parrot can be retrieved from http://www.parrot.org Development between releases will typically target the latest supported release, though it may begin to target more recent development releases in anticipation of the next supported release. PLA expects a built and installed Parrot. For more information about the installation process * CBLAS or ATLAS PLA depends on either CBLAS or ATLAS. The BLAS library is written in Fortran, so C language bindings are all translations of the Fortran interface. Unfortunately there is not a good, standard way of translating the Fortran source to C API bindings, so not all libraries that provide a C API for BLAS will have an interface compatible with PLA. We are working to be more accepting of small differences in various interfaces, but this work is moving slowly. PLA may eventually support direct linkage to the BLAS library, instead of requiring a C language implementation (CBLAS or ATLAS). This is not supported yet but is on the roadmap. We recommend the ATLAS library for current development and testing work. On Ubuntu or other Debian-based distros, you can type this incantation to get it automatically: sudo apt-get install libatlas3-base sudo apt-get install libatlas-base-dev On Fedora you can type: sudo yum install atlas-devel Notice that the default vesions of the atlas library are only generally optimized. If you are able, try to use a platform-specific variant (such as "-sse2" or "-3dnow") for better performance. See the ATLAS homepage for more information: http://math-atlas.sourceforge.net/ * LAPACK LAPACK is a library of linear algebra routines which rely heavily on the local BLAS implementation. For more information about LAPACK, see the project homepage at: http://www.netlib.org/lapack LAPACK bindings are currently in development. * Kakapo Kakapo is a framework library for the NQP language. PLA currently uses Kakapo to implement it's unit testing suite. You can build and install PLA without Kakapo, but you will need the framework to run the test suite. You can obtain Kakapo from it's source code repository on Gitorious, and get documentation from its project page on Google Code: http://gitorious.org/kakapo http://code.google.com/p/kakapo-parrot/ * Other Currently, PLA is only tested to build and work on Linux and other Unix-like systems with all the aforementioned prerequisites. The setup process pulls configuration information from your installed version of Parrot, so it will attempt to use the same compiler with the same compilation options as Parrot was compiled with. If another compiler absolutely needs to be used, there may be a way to specify that, but no documentation about the process exists. == BUILDING == To get, build, test, and install Parrot-Linear-Algebra, follow these steps (on Linux) once all the prerequisites have been prepared: git clone git://github.com/Whiteknight/parrot-linear-algebra.git pla cd pla parrot-nqp setup.nqp build parrot-nqp setup.nqp test parrot-nqp setup.nqp install Testing only works if you have Kakapo installed on your system. To install, you may need root privileges on your system. There is currently no known way to build or deploy PLA on Windows. == DIRECTORY STRUCTURE == + / + dynext/ : Location for generated libraries + examples/ : Example programs in various languages + ports/ : Generated information about porting + src/ : Source code + include/ : Include files + lib/ : Library files + pmc/ : PMC definition files + nqp/ : The NQP bootstrapper + rakudo/ : Wrapper files for use in Rakudo Perl 6 + t/ : Tests + methods/ : Tests for methods + pmc/ : Tests for various PMC types + testlib/ : Common test library == CREDITS == Original versions were developed as part of the Matrixy project by Blairuk. Some parts of the test suite were provided by Austin Hastings. See the file CREDITS for updated information about contributors.