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tensor_send

et_kernel::tensor

Function tensor_send 

Source 
pub unsafe fn tensor_send(freg: u8, count: u8, target: u16)
Expand description

Initiate an asynchronous TensorSend.

Pushes count consecutive FP registers starting at freg from this hart to hart 0 of the Minion identified by target. The partner hart must issue a matching tensor_recv. This is the low-level primitive for hart-to-hart reduction without software memory traffic.

§Parameters

  • freg: Starting FP register index (0..=31).
  • count: Number of FP registers to send (COUNT field, 0..=127).
  • target: Destination Minion ID (TARGET field, bits 15:3 of xs).

§Safety

  • The partner hart must call tensor_recv with the matching source and count before the send retires.
  • Must be called from the primary hart of the Minion.