PHX::ViewOfViews< OuterViewRank, InnerViewType, MemorySpace > Class Template Reference

#include <Phalanx_KokkosViewOfViews.hpp>

Public Types
using	OuterDataType = typename PHX::v_of_v_utils::add_pointer< InnerViewType, OuterViewRank >::type
using	OuterViewType = Kokkos::View< OuterDataType, MemorySpace >

Public Member Functions
template<typename... Extents>
	ViewOfViews (const std::string name, Extents...extents)
template<typename... Indices>
void	addView (InnerViewType v, Indices...i)
void	syncHostToDevice ()
auto	getViewHost ()
auto	getViewDevice ()

Detailed Description

template<int OuterViewRank, typename InnerViewType, typename MemorySpace>
class PHX::ViewOfViews< OuterViewRank, InnerViewType, MemorySpace >

Wrapper class that correctly handles ViewOfViews construction and object lifetime. Can be used for more than just Views as the inner object. This class makes sure the host view stays in scope for the life of the device view and makes sure that the device is synced to host before use.

Main restrictions:

1. When UVM is not used in the outer view, we need to allocate the VofV on host and copy to device to set up the inner views correctly.
2. Step 1 means that the host view must exist as long as the device view is being used, otherwise the views may go out of scope. This object exists to pair up the host and device view to make sure the inner views are not deleted early.

---

The documentation for this class was generated from the following file:

• Phalanx_KokkosViewOfViews.hpp