Replace code such as `myArray.GetPortalControl().Get(0)` with
`vtkm::cont::ArrayGetValue(0, myArray)`, which will just retrieve
the single value without transferring the entire contents of
`myArray` to the host. This should prevent memory thrashing.
Also did some general style clean-ups and fixed loops that called
`GetPortalControl` in the loop body.
Now that the dispatcher does its own TryExecute, filters do not need to
do that. This change requires all worklets called by filters to be able
to execute without knowing the device a priori.
Rather than force all dispatchers to be templated on a device adapter,
instead use a TryExecute internally within the invoke to select a device
adapter.
Because this removes the need to declare a device when invoking a
worklet, this commit also removes the need to declare a device in
several other areas of the code.
Sandia National Laboratories recently changed management from the
Sandia Corporation to the National Technology & Engineering Solutions
of Sandia, LLC (NTESS). The copyright statements need to be updated
accordingly.
