Struct LinearFragment 

pub struct LinearFragment<Op: GraphOp> {
    pub fragment: Fragment<Op>,
    pub tangent_inputs: Vec<(Op::InputKey, LocalValId)>,
    pub tangent_outputs: Vec<Option<LocalValId>>,
}

A linear fragment produced by crate::differentiate or crate::transpose.

Examples

use computegraph::resolve::resolve;
use tidu::differentiate;

let view = resolve(vec![primal_fragment]);
let mut ctx = ();
let linear = differentiate(&view, &[output_key], &[input_key], 1, &mut ctx);
assert_eq!(linear.tangent_inputs.len(), 1);

Fields

fragment: Fragment<Op>

The fragment containing linear ops.

tangent_inputs: Vec<(Op::InputKey, LocalValId)>

(primal_input_key, tangent_local_val_id) pairs.

tangent_outputs: Vec<Option<LocalValId>>

Tangent outputs, aligned with the requested outputs of the source transform. None means the corresponding output is inactive.