Struct McNoHostStats 

pub struct McNoHostStats {
    pub tracked_htod_calls: u64,
    pub tracked_dtoh_calls: u64,
    pub untracked_metadata_reads: u64,
    pub engine_launches: u64,
    pub host_loop_iterations: u64,
    pub per_sample_host_launches: u64,
    pub host_fixpoint_iterations: u64,
    pub per_operator_host_allocations: u64,
}

No-host-interaction instrumentation for the measured engine region.

Fields

tracked_htod_calls: u64

Tracked data-plane host-to-device calls inside the measured region.

tracked_dtoh_calls: u64

Tracked data-plane device-to-host calls inside the measured region.

untracked_metadata_reads: u64

Untracked control-plane metadata reads inside the measured region.

engine_launches: u64

Number of kernel launches the engine issued inside the measured region.

host_loop_iterations: u64

Number of host-side per-sample loop iterations inside the measured region (structurally zero: the engine has no host sample loop).

per_sample_host_launches: u64

Number of per-sample host launches inside the measured region (structurally zero: one global launch covers all worlds).

host_fixpoint_iterations: u64

Number of host-side fixpoint-loop iterations inside the measured region (structurally zero: recursion converges device-side). Required by the WCOJ world-batched acceptance contract.

per_operator_host_allocations: u64

Number of device allocations issued inside the measured region (must be zero: every arena is pre-allocated before the region). Backed by the memory manager’s alloc_count snapshot.

Implementations

impl McNoHostStats

pub fn is_no_host(&self) -> bool

True iff the measured region had no host interaction: no tracked transfers, no untracked metadata reads, no host sample loop, no per-sample host launches, no host fixpoint loop, no in-region device allocations. (A single global engine launch is permitted and is not per-sample; see Self::engine_launches.)

Trait Implementations

impl Clone for McNoHostStats

fn clone(&self) -> McNoHostStats

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for McNoHostStats

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for McNoHostStats

fn default() -> McNoHostStats

Returns the “default value” for a type.

impl PartialEq for McNoHostStats

fn eq(&self, other: &McNoHostStats) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for McNoHostStats

impl Eq for McNoHostStats

impl StructuralPartialEq for McNoHostStats