Currently, the only library created is for the rendering package. If
VTKm_BUILD_RENDERING is off, then no libraries are created. If no
libraries are created, then there is nothing that declares a VTKmTargets
export. If there is nothing that creates a VTKmTargets export, the
export command fails.
Aaarg!!!! I can't even find a way to query whether an export is valid
(in the same way you can query whether a target exists). I added a
global variable that recorded whether vtkm_library added a library
(where things are added to the VTKmTargets export). The export command
is called if any libraries were created, a stub is created and installed
otherwise.
I have noticed at least on my windows machine that source code that uses
the rendering package is taking a long time to compile. The rendering
library does not rely much on templates and more on virtual methods.
Thus, it is a good candidate for moving to a library so that it need be
compiled only once.
This sets up the configure scripts to create the library. There is also
a simple port of one class to the library. More will follow.
CMake policy CMP0058, introduced in CMake 3.3, requires that all
intermediate files created during the build process will be declared as
an output or byproduct of a target. See "cmake --help-policy CMP0058"
for details.
Per this policy, CMake was giving a warning about some files generated
during configuration (e.g. with configure_file) because they were files
in the build directory with no apparent target command. This is not an
issue since the configure will ensure that the file is always there
before the build starts. Thus, we declare that we will adhere to the new
policy to avoid the warning.
The examples configuration now behave like external projects and use
find_package to configure themselves. As such that file should be built
before we try to configure the examples.
There were a couple of places where the configure scripts did not add
either includes to VTKm_INCLUDE_DIRS or libraries to VTKm_LIBRARIES.
The biggest offender was when the examples used find_package to load the
VTK-m configuration it needed. find_package cleared out the includes and
libraries, but it did not clear out the VTKm_<COMPONENT>_FOUND
variables. Normally, these variables would not be set before
find_package is called, but in this case the examples were called after
some partial configuration. I got around this issue by clearing out all
the *_FOUND variables in VTKmConfig.cmake.
When finding the VTKm package, it is important to load components that
support the devices you want to use. However, there is no indication of
what does and does not get loaded. In some circumstances, it simply says
that VTKm_FOUND is not true but not why. Add some status messages of
whether each component gets loaded or not.
To detect what CUDA hardware is native, a simple CUDA program is
compiled. However, CMake was not necessarily pointing to the correct
source file, so the compile was failing.
This change makes sure that VTKm_CMAKE_MODULE_PATH is properly set and
uses that variable to find the source file.
Have VTK-m eat its own dog food when it comes to its configuration. Load
the same configuration for building VTK-m as would be loaded (more or
less) when using find_package(VTKm) in an external project.
This includes adding lots more components to the packages so that all the
setup (e.g. OpenGL, TBB, etc.) can be set up correctly. It is also a
significant change to how these components are declared. The component
configuration is simplified a bit and unified in a single file.
This is a little tricky since they don't seem to have considered that
you will have files in both the source and build directory or that the
file locations will not match exactly with the install locations.
On Unix-based systems, you can directly execute a script and the system
will automatically run it through its associated interpreter. However,
on Windows this does not work. You just get an error about the script,
which is just a text file, being an invalid executable.
This was an issue when running pyexpander. Now, Python is called
directly for pyexpander.
The test is a simple CMake script that finds all files in the build
directory with certain extensions (.h, .cxx, etc.) and makes sure that
the filename is listed somewhere in the CMakeLists.txt file of the same
directory. If the filename is listed in the CMakeLists.txt file, then
there is a good chance it is being addressed by the build.
This should help catch when header files are not being installed. It also
should help verify that test builds are being done on all files. It will
also highlight dead source files.
Like the ability to specify the vectorization level, users of CMake can
now specify what GPU architectures they want to build for. Most users
should just use the default 'native'.
4ceb111a Enable vectorization inside the Serial and TBB backends.
514ea09a Teach VTK-m how to enable vectorization for gcc, clang, and icc.
Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: Kenneth Moreland <kmorel@sandia.gov>
Merge-request: !275
* Support a REQUIRED flag that only gives an error if that flag is given.
* Move common configuration required for all devices (such as boost) to a
special device named Base.
* Make CUDA always capitalized to be consistent with the other CMake
variables.
* Rather than call include_directories, set a variable named
VTKm_INCLUDE_DIRS. This is consistent with how most CMake packages work.
* Make a CMake variable named VTKm_LIBRARIES containing all the
libraries the configured devices need.
* Automatically configure supported devices when loading the VTK-m
package in CMake.
