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Mojo struct

Struct_ep_combine_async

struct Struct_ep_combine_async

Registers the ep.combine_async graph op with the graph compiler.

Implemented traits

AnyType, Deinitable, Movable

Methods

execute

static def execute[combine_dtype: DType, hidden_size: Int, top_k: Int, n_experts: Int, max_token_per_rank: Int, n_gpus_per_node: Int, n_nodes: Int, //, target: StringSpan[ImmStaticOrigin]](atomic_counters: ManagedTensorSlice[IOSpec[_, _].MutableInput, static_spec=atomic_counters.static_spec], input_tokens: ManagedTensorSlice[IOSpec[_, _].Input, static_spec=input_tokens.static_spec], src_info: ManagedTensorSlice[IOSpec[_, _].Input, static_spec=src_info.static_spec], send_ptrs: ManagedTensorSlice[IOSpec[_, _].Input, static_spec=send_ptrs.static_spec], recv_ptrs: ManagedTensorSlice[IOSpec[_, _].Input, static_spec=recv_ptrs.static_spec], recv_count_ptrs: ManagedTensorSlice[IOSpec[_, _].Input, static_spec=recv_count_ptrs.static_spec], context: DeviceContext)

Execute the Expert Parallelism combine kernel.

Sends expert-processed output tokens back to their original devices asynchronously, without waiting for the transfers to complete.

Parameters:

• ​combine_dtype (DType): DType used for the token payload during the combine phase (inferred).
• ​hidden_size (Int): Size of the model's hidden dimension (inferred).
• ​top_k (Int): Number of experts each token is routed to (inferred).
• ​n_experts (Int): Total number of experts across all GPUs (inferred).
• ​max_token_per_rank (Int): Maximum number of tokens per GPU (inferred).
• ​n_gpus_per_node (Int): Number of GPUs per node (inferred).
• ​n_nodes (Int): Number of physical nodes (inferred).
• ​target (StringSpan[ImmStaticOrigin]): Compile-time device target.

Args:

• ​atomic_counters (ManagedTensorSlice[IOSpec[_, _].MutableInput, static_spec=atomic_counters.static_spec]): Atomic counters coordinating work across thread blocks during the combine phase.
• ​input_tokens (ManagedTensorSlice[IOSpec[_, _].Input, static_spec=input_tokens.static_spec]): Expert output tokens to send back to their original devices. Shape [num_tokens, hidden_size].
• ​src_info (ManagedTensorSlice[IOSpec[_, _].Input, static_spec=src_info.static_spec]): Source routing information from the dispatch phase recording the originating rank and token index for each token. Shape [num_tokens, 2].
• ​send_ptrs (ManagedTensorSlice[IOSpec[_, _].Input, static_spec=send_ptrs.static_spec]): Send buffer pointers for the combine phase.
• ​recv_ptrs (ManagedTensorSlice[IOSpec[_, _].Input, static_spec=recv_ptrs.static_spec]): Receive buffer pointers for the combine phase.
• ​recv_count_ptrs (ManagedTensorSlice[IOSpec[_, _].Input, static_spec=recv_count_ptrs.static_spec]): Receive count buffer pointers tracking the number of tokens received per expert.
• ​context (DeviceContext): GPU device context for the current device.