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| − | VTK-m is an open source C++ header toolkit that provides the ability to do fine-grained concurrency on scientific visualization data structures. VTK-m has few required dependencies but supports several optional components.
| + | Information about [https://gitlab.kitware.com/vtk/vtk-m/blob/master/README.md#dependencies dependencies] and [https://gitlab.kitware.com/vtk/vtk-m/blob/master/README.md#building building VTK-m] has moved to the [https://gitlab.kitware.com/vtk/vtk-m/blob/master/README.md#building VTK-m README]. More detailed information can be found in the [[Media:VTKmUsersGuide.pdf|VTK-m User's Guide]]. |
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| − | == Getting VTK-m ==
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| − | VTK-m is currently available from a kitware git repository, which has public anonymous read access. URLs that can be used to clone the git repository can be found on [http://public.kitware.com/vtkm.git the git project web page](http://public.kitware.com/vtkm.git).
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| − | If you haven't used git before, consider following [https://help.github.com/articles/set-up-git github's excellent setup guide]. To get a copy of the repository, issue a git clone command.
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| − | git clone http://public.kitware.com/vtkm.git
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| − | The repository supports access with the http, git, and ssh protocols. Push access is only allowed with the SSH protocol. If you want to contribute to Dax please read the [[Contributing to VTK-m]] page. If you are a core developer of Dax please use [https://www.kitware.com/Admin/SendPassword.cgi this link] to send your public SSH key to Kitware.
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| − | == Dependencies ==
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| − | * CMake: VTK-m uses CMake to configure the build. You will need a relatively new version of CMake. CMake 2.8.10 or newer is recommended.
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| − | * Boost: VTK-m requires the header version of Boost 1.48.0 or better. You do not need to install the Boost libraries.
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| − | == Supported Operating Systems and Compilers ==
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| − | VTK-m is supported on Windows, Mac OSX, and Linux and should work on other varieties of Unix. It is possible to compile VTK-m with many different compiler versions including GNU, CLANG, MSVC, Intel, and PGI.
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| − | == Building VTK-m with CMake ==
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| − | Although VTK-m is header only, the code needs to be configured for the local system. VTK-m also has a large testing framework that will ensure it is working correctly on your system.
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| − | Always configure VTK-m so that the build tree is not the same as the source directory. The project will not run in if the source and build directories are the same.
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| − | The basic steps to setting up VTK-m are as follows:
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| − | git clone http://public.kitware.com/vtkm.git
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| − | mkdir vtkm-build
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| − | cd vtkm-build
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| − | cmake-gui ../vtkm
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| − | make
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| − | make test
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| − | (Note that parallel makes are supported, so you can run something like <tt>make -j4</tt> to take advantage of multiple cores during the build.)
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| − | === VTK-m CMake Settings ===
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| − | The VTK-m CMake configuration supports several options. Here are some options specific to VTK-m
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| − | {| cellpadding="2" cellspacing="0"
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| − | |- style="background:#abcdef"
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| − | ! Variable
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| − | ! Description
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| − | | VTKm_USE_64BIT_IDS || Enable 64 bit index support. This is the size of integers used to index arrays, points, cells, etc.
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| − | |-
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| − | | VTKm_USE_DOUBLE_PRECISION || Precision to use in floating point numbers when no other precision can be inferred. Use 64 bit precision when on, 32 bit precision when off.
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| − | |-
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| − | |}
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| − | == Documentation ==
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| − | Documentation is currently a work in progress. For the latest version of the User's Guide, contact Ken Moreland <[mailto:kmorel@sandia.gov kmorel@sandia.gov]>.
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