cuda::experimental::stf::uncached_graph_allocator#
-
class uncached_graph_allocator : public cuda::experimental::stf::block_allocator_interface#
Uncached allocator (used as a base for other allocators)
Any allocation/deallocation results in an actual underlying CUDA API call (e.g.
cudaGraphAddMemAllocNode
). This allocator should generally not be used directly, but used within an allocator with a more advanced strategy (caching, heap allocation, …)Public Functions
-
uncached_graph_allocator() = default#
- inline virtual void *allocate(
- backend_ctx_untyped &bctx,
- const data_place &memory_node,
- ::std::ptrdiff_t &s,
- event_list &prereqs,
Asynchronous allocation of memory.
This method asynchronously allocates
*s
bytes on the specified memory node. Upon success,*ptr
will contain the address of the allocated buffer. If the allocation fails,*s
will contain a negative value.- Parameters:
ctx – Untyped backend context
memory_node – Memory node where the allocation should occur
s – Pointer to the size of the allocation
prereqs – List of events that should finish before the allocation starts
- Returns:
void* Pointer to the allocated memory
- inline virtual void deallocate(
- backend_ctx_untyped &bctx,
- const data_place &memory_node,
- event_list &prereqs,
- void *ptr,
- size_t,
Deallocation of memory.
This method deallocates memory previously allocated by the allocate method.
- Parameters:
ctx – Untyped backend context
memory_node – Memory node where the deallocation should occur
prereqs – List of events that should finish before the deallocation starts
ptr – Pointer to the memory to be deallocated
sz – Size of the memory to be deallocated
-
inline virtual ::std::string to_string() const override#
String representation of the allocator.
This method returns a string representation of the allocator.
- Returns:
std::string String representation of the allocator
-
inline virtual event_list deinit(backend_ctx_untyped&) override#
Deinitialization of the allocator.
- Returns:
List of events indicating that this was deinitialized
-
inline virtual void print_info() const#
Print information about the allocator.
This method prints information about the allocator to stderr.
-
uncached_graph_allocator() = default#