Function chunk_mut 

pub fn chunk_mut<'a, T, Map: ScopeUniqueMap<Grid2ThreadScope>>(
    input: GpuGlobal<'a, [T]>,
    map: Map,
) -> GlobalThreadChunk<'a, T, Map>

Chunk a global memory slice into unique chunks. supports mapping strategies for global memory. For example,

• chunk_mut(&mut data, MapLinear::new(width))
• chunk_mut(&mut data, Map2D::new(x_width))