The ExecutionSignature tag to use to get the visit index.
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#include <WorkletReduceByKey.h>
Additional Inherited Members | |
 Public Types inherited from vtkm::exec::arg::VisitIndex | |
| using | AspectTag = vtkm::exec::arg::AspectTagVisitIndex |
| Static Public Attributes inherited from vtkm::exec::arg::VisitIndex | |
| static constexpr vtkm::IdComponent | INDEX = 1 |
Detailed Description
The ExecutionSignature tag to use to get the visit index.
This tag produces a vtkm::IdComponent that uniquely identifies when multiple worklet invocations operate on the same input item, which can happen when defining a worklet with scatter.
When a worklet is dispatched, there is a scatter operation defined that optionally allows each input to go to multiple output entries. When one input is assigned to multiple outputs, there needs to be a mechanism to uniquely identify which output is which. The visit index is a value between 0 and the number of outputs a particular input goes to. This tag in the ExecutionSignature passes the visit index for this work.
The documentation for this struct was generated from the following file:
