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============
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2014-01-13 05:10:08 +01:00
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Spack is a package management tool designed to support multiple
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versions and configurations of software on a wide variety of platforms
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and environments. It was designed for large supercomputing centers,
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where many users and application teams share common installations of
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software on clusters with exotic architectures, using libraries that
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do not have a standard ABI. Spack is non-destructive: installing a new
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version does not break existing installations, so many configurations
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can coexist on the same system.
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Most importantly, Spack is simple. It offers a simple spec syntax so
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that users can specify versions and configuration options
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concisely. Spack is also simple for package authors: package files are
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written in pure Python, and specs allow package authors to write a
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single build script for many different builds of the same package.
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See the
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[Feature Overview](http://scalability-llnl.github.io/spack/features.html)
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for examples and highlights.
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To install spack and install your first package:
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2014-09-19 09:54:39 -07:00
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$ git clone https://github.com/scalability-llnl/spack.git
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$ cd spack/bin
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$ ./spack install libelf
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Documentation
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----------------
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[Full documentation](http://scalability-llnl.github.io/spack)
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for Spack is also available.
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2015-03-24 09:58:32 -07:00
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Get Involved!
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------------------------
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2015-03-24 09:58:32 -07:00
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Spack is an open source project. Questions, discussion, and
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contributions are welcome. Contributions can be anything from new
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packages to bugfixes, or even new core features.
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### Mailing list
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If you are interested in contributing to spack, the first step is to
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join the mailing list. We're using a Google Group for this, and you
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can join it here:
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2015-04-13 11:02:13 -07:00
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* [Spack Google Group](https://groups.google.com/d/forum/spack)
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2015-03-24 09:58:32 -07:00
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### Contributions
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At the moment, contributing to Spack is relatively simple. Just send us
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a [pull request](https://help.github.com/articles/using-pull-requests/).
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When you send your request, make ``develop`` the destination branch.
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Spack is using a rough approximation of the [Git
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Flow](http://nvie.com/posts/a-successful-git-branching-model/)
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branching model. The ``develop`` branch contains the latest
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contributions, and ``master`` is always tagged and points to the
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latest stable release.
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2014-01-13 05:10:08 +01:00
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Authors
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----------------
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2015-10-17 17:41:17 -07:00
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Many thanks go to Spack's [contributors](https://github.com/scalability-llnl/spack/graphs/contributors).
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Spack was originally written by Todd Gamblin, tgamblin@llnl.gov.
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Release
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----------------
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Spack is released under an LGPL license. For more details see the
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LICENSE file.
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``LLNL-CODE-647188``
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