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README.md

Swift Parallel Scripting Language

See http://swift-lang.org for documentation, downloads, and general information about the Swift parallel scripting language.

Official releases are available at http://swift-lang.org/downloads.

This is the source code for the Swift/K implementation of the language. Swift/K focuses on robust distributed execution of tasks, particularly command-line programs operating on files, on varied compute resources including clouds and clusters. The sibling Swift/T implementation (https://github.com/swift-lang/swift-t) focuses on high-performance computation on clusters and supercomputers.

Building

Run ant redist to build Swift. The compiled Swift distribution will be created under dist/swift-<version> (dist/swift-svn for the development version). Copy this directory to your preferred location to install it. If you are unfamiliar with Swift, we suggest you start with the Swift tutorials to get yourself familiarized: http://swift-lang.org/docs/

Repository Layout

At the root of the repository are a number of subdirectories that contain the source code and supporting files for the Swift language. The main directories are:

  • bin: Swift executables
  • build: working directory for temporary build files
  • cogkit: modules based on the Java CoG kit
  • dist: destination for final compiled distribution of Swift
  • docs: Swift documentation
  • etc: miscellaneous supporting files
  • lib: libraries required for Swift, particularly Java jars.
  • libexec: other libraries required for Swift, particularly Karajan libraries and shell scripts
  • resources: miscellaneous resources used in building Swift.
  • src: Java source code for Swift compiler and runtime.
  • tests: test suite for Swift

Swift depends on a number of additional modules that reside in their own directories under cogkit/modules, for example cogkit/modules/karajan or cogkit/modules/provider-coaster.

Some of the more interesting modules are:

  • karajan: the Karajan language, used as a compilation target for Swift.
  • provider-coaster: the Coaster service and Java client for lightweight execution of jobs on remote resources
  • provider-coaster-c-client: a C/C++ client for the Coaster service
  • provider-...: other providers that support remote job execution on various computing resources

Java CoG Kit

This distribution of Swift incorporates code originally developed by the CoG (Commodity Grid) project. For information about the Java CoG Kit see README.txt, CHANGES.txt and LICENSE.txt in cogkit, and http://www.cogkit.org/. Thanks to Gregor von Laszweski and the rest of the CoG developers.

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