For the complete documentation index, see llms.txt. Markdown versions of all pages are available by appending .md to any URL (e.g. /max/get-started.md).
Mojo struct
Struct_ep_dispatch_async_mxfp4
struct Struct_ep_dispatch_async_mxfp4
Registers the ep.dispatch_async.mxfp4 graph op with the graph compiler.
Implemented traits
Methods
execute
static def execute[input_dtype: DType, dispatch_dtype: DType, dispatch_scale_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: StringSlice[ImmStaticOrigin]](atomic_counters: ManagedTensorSlice[IOSpec[_, _].MutableInput, static_spec=atomic_counters.static_spec], input_tokens: ManagedTensorSlice[IOSpec[_, _].Input, static_spec=input_tokens.static_spec], topk_ids: ManagedTensorSlice[IOSpec[_, _].Input, static_spec=topk_ids.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 async dispatch kernel. Tokens are transferred in MXFP4 format with per-token even-mode scales packed alongside the FP4 quants in the send buffer.
Parameters:
- input_dtype (
DType):DTypeof the input tokens before dispatch (inferred). - dispatch_dtype (
DType):DTypeused for the quantized token payload during dispatch (inferred). - dispatch_scale_dtype (
DType):DTypeof the per-token even-mode scales accompanying the dispatched tokens (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 (
StringSlice[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 dispatch phase. - input_tokens (
ManagedTensorSlice[IOSpec[_, _].Input, static_spec=input_tokens.static_spec]): Input tokens to dispatch to experts. Shape[num_tokens, hidden_size]. - topk_ids (
ManagedTensorSlice[IOSpec[_, _].Input, static_spec=topk_ids.static_spec]): Top-k expert IDs per token. Shape[num_tokens, top_k]. - send_ptrs (
ManagedTensorSlice[IOSpec[_, _].Input, static_spec=send_ptrs.static_spec]): Send buffer pointers for the dispatch phase. - recv_ptrs (
ManagedTensorSlice[IOSpec[_, _].Input, static_spec=recv_ptrs.static_spec]): Receive buffer pointers for the dispatch phase. - recv_count_ptrs (
ManagedTensorSlice[IOSpec[_, _].Input, static_spec=recv_count_ptrs.static_spec]): Receive count buffer pointers tracking tokens received per expert. - context (
DeviceContext): GPU device context for the current device.
Was this page helpful?
Thank you! We'll create more content like this.
Thank you for helping us improve!