Module algorithm 

Algorithm selection types for tensor train operations.

This module provides enums for selecting algorithms in various tensor train operations. These types are designed to be FFI-friendly (representable as C integers).

Design Philosophy

Following ITensors.jl’s pattern, algorithms are represented as static types. Unlike ITensors.jl which uses symbol-based dispatch (Algorithm"svd"), we use Rust enums for:

• Compile-time exhaustiveness checking
• Easy FFI mapping to C integers
• Clear documentation of available algorithms

Example

use tensor4all_treetn::algorithm::{ContractionAlgorithm, CanonicalForm};

// Select contraction algorithm
let alg = ContractionAlgorithm::ZipUp;

// Select canonical form
let form = CanonicalForm::Unitary;

Enums

CanonicalForm

Canonical form for tensor train / tree tensor network.

CompressionAlgorithm

Algorithm for tensor train compression.

ContractionAlgorithm

Algorithm for tensor train contraction (TT-TT or MPO-MPO).