oa::ml::metric::scalar_loss

Read one scalar FP32 loss value. This is an explicit host-observation boundary: pending work is submitted and the producing event is awaited before the value is returned. Errors Returns an error unless loss contains exactly one F32 value, or submission, completion, or readback fails.

FnRust public API

Function Documentation

pub fn scalar_loss(
	loss: &Matrix
) -> Result<f32>

Examples

ExMl

Autograd, SGD, and explicit loss readback.