Mojo function

broadcast

broadcast[type: DType, width: Int, //, *, block_size: Int](val: SIMD[type, width], src_thread: UInt = UInt(0)) -> SIMD[type, width]

Broadcasts a value from a source thread to all threads in a block.

This function takes a SIMD value from the specified source thread and copies it to all other threads in the block, effectively broadcasting the value across the entire block.

Parameters:

type (DType): The data type of the SIMD elements.
width (Int): The number of elements in each SIMD vector.
block_size (Int): The total number of threads in the block.

Args:

val (SIMD[type, width]): The SIMD value to broadcast from the source thread.
src_thread (UInt): The thread ID of the source thread (default: 0).

Returns:

A SIMD value where all threads contain a copy of the input value from the source thread.