vtk-m/docs
Kenneth Moreland 3b828608a4 Support ExecArg behavior in vtkm::cont::Algorithm methods
Most of the arguments given to device adapter algorithms are actually
control-side arguments that get converted to execution objects internally
(usually a `vtkm::cont::ArrayHandle`). However, some of the algorithms,
take an argument that is passed directly to the execution environment, such
as the predicate argument of `Sort`. If the argument is a plain-old-data
(POD) type, which is common enough, then you can just pass the object
straight through. However, if the object has any special elements that have
to be transferred to the execution environment, such as internal arrays,
passing this to the `vtkm::cont::Algorithm` functions becomes
problematic.

To cover this use case, all the `vtkm::cont::Algorithm` functions now
support automatically transferring objects that support the `ExecObject`
worklet convention. If any argument to any of the `vtkm::cont::Algorithm`
functions inherits from `vtkm::cont::ExecutionObjectBase`, then the
`PrepareForExecution` method is called with the device the algorithm is
running on, which allows these device-specific objects to be used without
the hassle of creating a `TryExecute`.
2018-07-06 18:57:54 +02:00
..
changelog Support ExecArg behavior in vtkm::cont::Algorithm methods 2018-07-06 18:57:54 +02:00
CodingConventions.md Remove VS2013 workarounds from VTK-m. 2018-02-23 15:39:39 -05:00