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StepMetrics

entrenar::train::pretrain

Struct StepMetrics 

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pub struct StepMetrics {
    pub step: u64,
    pub train_loss: f32,
    pub grad_norm: f32,
    pub lr: f32,
    pub tokens_per_sec: f32,
    pub gpu_util_pct: f32,
    pub wall_ms: f32,
}
Expand description

Exactly the 7 fields the contract’s per_step_metrics.required list names. Serialization is JSONL-friendly for downstream QA.

wall_ms added per contracts/training-loop-pretrain-v1.yaml v1.5.0 to discharge §19.4 Residual B of ship-two-models-spec.md (GATE-GPUTRAIN-004 per-step latency budget).

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§step: u64

Monotonic step counter (INV-TRAIN-001).

§train_loss: f32

Cross-entropy loss on the training micro-batch.

§grad_norm: f32

Global L2 norm of gradients BEFORE clipping (INV-TRAIN-001).

§lr: f32

Current learning rate after scheduler update.

§tokens_per_sec: f32

Throughput over this step window, tokens per wall second.

§gpu_util_pct: f32

GPU utilization in [0, 100] (INV-TRAIN-008).

§wall_ms: f32

Wall-clock time for this optimizer step, milliseconds. Per contracts/training-loop-pretrain-v1.yaml v1.5.0; required for GATE-GPUTRAIN-004 (per-step latency budget < 500ms on RTX 4090 / 370M).

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impl StepMetrics

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pub fn validate_finite(&self) -> Result<(), PretrainAbort>

GATE-TRAIN-007: train_loss and grad_norm MUST be finite. GATE-TRAIN-008: throughput MUST be in non-negative / [0, 100].

Returns Err(PretrainAbort::NumericalInstability) or ThroughputOutOfRange on first violation; otherwise Ok(()).

Trait Implementations§

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impl Clone for StepMetrics

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fn clone(&self) -> StepMetrics

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

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

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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 StepMetrics

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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 PartialEq for StepMetrics

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

Tests for self and other values to be equal, and is used by ==.
1.0.0 (const: unstable) · Source§

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

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

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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 StructuralPartialEq for StepMetrics

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