pub fn shard_dense_1d_bf16(
src: DevicePtr,
dim: usize,
tp_rank: usize,
tp_size: usize,
gpu: &dyn GpuBackend,
) -> Result<(DevicePtr, usize)>Expand description
2026-09-25: Shard a 1D BF16 vector [dim] on dim 0, for per-output
vectors of column-parallel GEMMs. Same ownership rule as shard_dense_bf16.