Mojo trait

AsyncTileCopier

Trait for asynchronously copying a TileTensor between address spaces.

Distinct from TileCopier because async copies have semantics the synchronous trait cannot express: on NVIDIA the copy call only issues the transfer, and callers must commit it via async_copy_commit_group() and synchronize via async_copy_wait_all() or async_copy_wait_group() before reading the destination tile. Keeping the trait separate prevents code generic over TileCopier from silently accepting an async copier and producing reads that race the in-flight transfer, and gives the async path room to grow (e.g., explicit commit/wait members or multi-stage pipelining) as the async story is fleshed out.

Implemented traits

AnyType

comptime members

dst_address_space

comptime dst_address_space

Destination AddressSpace the copier writes to.

src_address_space

comptime src_address_space

Source AddressSpace the copier reads from.

Required methods

copy

copy[element_size: Int](self: _Self, dst: TileTensor[dst.dtype, dst.LayoutType, dst.origin, address_space=_Self.dst_address_space, linear_idx_type=dst.linear_idx_type, element_size=element_size], src: TileTensor[src.dtype, src.LayoutType, src.origin, address_space=_Self.src_address_space, linear_idx_type=src.linear_idx_type, element_size=element_size])

Asynchronously copies src into dst.

The copy may not be complete when this call returns; callers must commit and synchronize before reading dst.

Parameters:

• ​element_size (Int): Number of scalar elements per logical element.

Args:

• ​dst (TileTensor): Destination tile in dst_address_space.
• ​src (TileTensor): Source tile in src_address_space.

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