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Expose internal rust interface to DenseLayout #12104

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Merged
henryzou50 merged 4 commits into from
May 22, 2024
Merged

Expose internal rust interface to DenseLayout #12104

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f48af01
Expose internal rust interface to DenseLayout
mtreinish Mar 29, 2024
42f8585
Merge branch 'main' into dense-layout-rust-interface
mtreinish May 22, 2024
33493a0
Remove PyResult
mtreinish May 22, 2024
3d86114
Merge branch 'main' into dense-layout-rust-interface
henryzou50 May 22, 2024
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37 changes: 29 additions & 8 deletions crates/accelerate/src/dense_layout.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -15,8 +15,8 @@ use ahash::RandomState;
use hashbrown::{HashMap, HashSet};
use indexmap::IndexSet;
use ndarray::prelude::*;
use numpy::IntoPyArray;
use numpy::PyReadonlyArray2;
use numpy::ToPyArray;
use rayon::prelude::*;

use pyo3::prelude::*;
Expand Down Expand Up @@ -108,10 +108,35 @@ pub fn best_subset(
use_error: bool,
symmetric_coupling_map: bool,
error_matrix: PyReadonlyArray2<f64>,
) -> PyResult<(PyObject, PyObject, PyObject)> {
) -> (PyObject, PyObject, PyObject) {
let coupling_adj_mat = coupling_adjacency.as_array();
let coupling_shape = coupling_adj_mat.shape();
let err = error_matrix.as_array();
let [rows, cols, best_map] = best_subset_inner(
num_qubits,
coupling_adj_mat,
num_meas,
num_cx,
use_error,
symmetric_coupling_map,
err,
);
(
rows.into_pyarray_bound(py).into(),
cols.into_pyarray_bound(py).into(),
best_map.into_pyarray_bound(py).into(),
)
}

pub fn best_subset_inner(
num_qubits: usize,
coupling_adj_mat: ArrayView2<f64>,
num_meas: usize,
num_cx: usize,
use_error: bool,
symmetric_coupling_map: bool,
err: ArrayView2<f64>,
) -> [Vec<usize>; 3] {
let coupling_shape = coupling_adj_mat.shape();
let avg_meas_err = err.diag().mean().unwrap();

let map_fn = |k| -> SubsetResult {
Expand Down Expand Up @@ -216,11 +241,7 @@ pub fn best_subset(
let rows: Vec<usize> = new_cmap.iter().map(|edge| edge[0]).collect();
let cols: Vec<usize> = new_cmap.iter().map(|edge| edge[1]).collect();

Ok((
rows.to_pyarray_bound(py).into(),
cols.to_pyarray_bound(py).into(),
best_map.to_pyarray_bound(py).into(),
))
[rows, cols, best_map]
}

#[pymodule]
Expand Down