cuda::experimental::stf::slice_graph_interface
Defined in include/cuda/experimental/__stf/graph/interfaces/slice.cuh
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template<typename T, size_t dimensions = 1>
class slice_graph_interface : public cuda::experimental::stf::graph_data_interface<slice<T, 1>> Slice data interface implementation over CUDA graphs.
The type manipulated will be
slice<T, dimensions>.- Template Parameters
T – Element type for the slice
dimensions – rank of the slice
Public Types
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using base = graph_data_interface<slice<T, dimensions>>
Alias for the base class.
Public Functions
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inline slice_graph_interface(slice<T, dimensions> s)
Constructor from slice.
- Parameters
s – either a slice or the shape of a slice
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inline slice_graph_interface(shape_of<slice<T, dimensions>> s)
Constructor from shape.
- Parameters
s – either a slice or the shape of a slice
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inline virtual void data_allocate(backend_ctx_untyped &bctx, block_allocator_untyped &custom_allocator, const data_place &memory_node, instance_id_t instance_id, ::std::ptrdiff_t &s, void **extra_args, event_list &prereqs) override
Implementation of interface primitive.
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inline virtual void data_deallocate(backend_ctx_untyped &bctx, block_allocator_untyped &custom_allocator, const data_place &memory_node, instance_id_t instance_id, void *extra_args, event_list &prereqs) final
Implementation of interface primitive.
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inline virtual cudaGraphNode_t graph_data_copy(cudaMemcpyKind kind, instance_id_t src_instance_id, instance_id_t dst_instance_id, cudaGraph_t graph, const cudaGraphNode_t *input_nodes, size_t input_cnt) override
Implementation of interface primitive.
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inline virtual bool pin_host_memory(instance_id_t instance_id) override
Implementation of interface primitive.
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inline virtual void unpin_host_memory(instance_id_t) override
Implementation of interface primitive.
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inline virtual void data_copy(backend_ctx_untyped &ctx_, const data_place &dst_memory_node, instance_id_t dst_instance_id, const data_place &src_memory_node, instance_id_t src_instance_id, event_list &prereqs) override
Copy data from one memory node to another, returning a prerequisite event list.
- Parameters
ctx – Backend context state
dst_memory_node – The destination memory node
dst_instance_id – The destination instance ID
src_memory_node – The source memory node
src_instance_id – The source instance ID
arg – Additional arguments required for copying data
prereqs – Prerequisite event list, will be updated as a side effect
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template<typename T>
inline const T &shape() const Get the part of the data interface that is common to all data instances.
- Template Parameters
T – The type of the data shape
- Returns
A const reference to the data shape
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inline slice<T, 1> &instance(instance_id_t instance_id)
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inline const slice<T, 1> &instance(instance_id_t instance_id) const
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inline virtual size_t data_hash(instance_id_t instance_id) const final
Get the hash of the data representation for the given instance ID.
- Parameters
instance_id – The ID of the data instance
- Returns
The hash of the data representation
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inline size_t data_footprint() const final
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inline ::std::optional<cudaMemoryType> get_memory_type(instance_id_t)
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template<typename T>
inline const T &instance_const(instance_id_t instance_id) const Get a const reference to the data instance of the given ID.
- Template Parameters
T – The type of the data instance
- Parameters
instance_id – The ID of the data instance
- Returns
A const reference to the data instance
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template<typename backend_ctx_untyped>
inline instance_id_t get_default_instance_id(backend_ctx_untyped&, const logical_data_untyped &d, task &tp) const Returns the index (ID) of the data instance for this logical data in the current task context.
If this is called outside a task, this will result in an error.
- Parameters
ctx – The backend context state
d – The logical data_untyped
- Returns
The ID of the data instance for this logical data