docs: permutation optimization analysis + use strided-perm in finalize_into#113
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docs: permutation optimization analysis + use strided-perm in finalize_into#113
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…inalize_into Add docs/permutation-optimization.md summarizing the lazy vs eager permutation tradeoff, the HPTT-inspired strided-perm implementation, and open questions (always-materialize heuristic, two-stage permutation). Also includes the one-line change in einsum2 finalize_into to call strided_perm::copy_into directly, ensuring HPTT optimization is used for the GEMM writeback path. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Summary
docs/permutation-optimization.mddocumenting the lazy vs eager permutation tradeoffeinsum2::finalize_intoto usestrided_perm::copy_intodirectly (HPTT-optimized writeback)Documentation covers
Code change
One-line change in
strided-einsum2/src/contiguous.rs:Test plan
cargo test -p strided-einsum2(84 tests pass)cargo test -p strided-opteinsum(all pass)🤖 Generated with Claude Code