Function estimate_occupancy 

pub fn estimate_occupancy(
    wg_size: usize,
    regs_per_thread: usize,
    shared_mem_bytes: usize,
    max_wgs_per_sm: usize,
    max_threads_per_sm: usize,
    max_regs_per_sm: usize,
    max_smem_per_sm: usize,
) -> f64

Compute the theoretical SM occupancy given resource usage.

Returns a value in [0.0, 1.0] where 1.0 = 100% occupancy.

Parameters

• wg_size - threads per work-group.
• regs_per_thread - registers used per thread.
• shared_mem_bytes- shared memory used per work-group.
• max_wgs_per_sm - hardware limit (work-groups per SM).
• max_threads_per_sm - hardware limit (threads per SM).
• max_regs_per_sm - hardware limit (total registers per SM).
• max_smem_per_sm - hardware limit (shared memory bytes per SM).