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GpuMuda

Enum GpuMuda 

Source
pub enum GpuMuda {
    Transport {
        register_spills: u64,
        unnecessary_global_loads: u64,
        redundant_shared_stores: u64,
    },
    Waiting {
        barrier_stall_cycles: u64,
        memory_stall_cycles: u64,
        pipeline_bubbles: u64,
        warp_scheduler_idle_pct: f64,
    },
    Overprocessing {
        precision_waste_pct: f64,
        redundant_instructions: u64,
        unnecessary_bounds_checks: u64,
    },
    Inventory {
        unused_shared_memory_bytes: u64,
        unused_registers_per_thread: u32,
        occupancy_loss_pct: f64,
    },
    Motion {
        divergent_branches: u64,
        branch_efficiency_pct: f64,
        loop_overhead_cycles: u64,
    },
    Defects {
        nan_count: u64,
        inf_count: u64,
        precision_loss_bits: f64,
    },
    Overproduction {
        padding_waste_pct: f64,
        inactive_thread_pct: f64,
        unused_output_elements: u64,
    },
}
Expand description

Seven Muda of GPU Compute, plus CPU-specific waste categories.

Variants§

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Transport

Muda of Transport: Data moved unnecessarily. Examples: register spills, redundant L2 traffic, unnecessary H2D copies.

Fields

§register_spills: u64
§unnecessary_global_loads: u64
§redundant_shared_stores: u64
§

Waiting

Muda of Waiting: Hardware resources idle. Examples: barrier stalls, memory latency not hidden, pipeline bubbles.

Fields

§barrier_stall_cycles: u64
§memory_stall_cycles: u64
§pipeline_bubbles: u64
§warp_scheduler_idle_pct: f64
§

Overprocessing

Muda of Overprocessing: More work than necessary. Examples: FP32 when FP16 suffices, unneeded boundary checks, redundant instructions.

Fields

§precision_waste_pct: f64
§redundant_instructions: u64
§unnecessary_bounds_checks: u64
§

Inventory

Muda of Inventory: Resources allocated but unused. Examples: shared memory allocated but not used, registers reserved but unused.

Fields

§unused_shared_memory_bytes: u64
§unused_registers_per_thread: u32
§occupancy_loss_pct: f64
§

Motion

Muda of Motion: Excessive control flow. Examples: warp divergence, branch overhead, loop overhead.

Fields

§divergent_branches: u64
§branch_efficiency_pct: f64
§loop_overhead_cycles: u64
§

Defects

Muda of Defects: Incorrect results requiring rework. Examples: NaN propagation, precision loss, numerical instability.

Fields

§nan_count: u64
§inf_count: u64
§precision_loss_bits: f64
§

Overproduction

Muda of Overproduction: Computing results that aren’t needed. Examples: padding waste, inactive threads in partial tiles.

Fields

§padding_waste_pct: f64
§inactive_thread_pct: f64
§unused_output_elements: u64

Trait Implementations§

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impl Clone for GpuMuda

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fn clone(&self) -> GpuMuda

Returns a duplicate of the value. Read more
1.0.0 · Source§

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

Performs copy-assignment from source. Read more
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impl Debug for GpuMuda

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

Formats the value using the given formatter. Read more
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impl<'de> Deserialize<'de> for GpuMuda

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fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>
where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more
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impl Serialize for GpuMuda

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fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>
where __S: Serializer,

Serialize this value into the given Serde serializer. Read more

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
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type Error = <U as TryFrom<T>>::Error

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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

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impl<T> DeserializeOwned for T
where T: for<'de> Deserialize<'de>,