feat(deterministic-parallel-assembly): step 0 — canonical-contribution-order

2026-08-01 23:06:21 +09:00
parent 6ac474f19b
commit 40a7e6c3af
6 changed files with 251 additions and 2 deletions
@@ -0,0 +1,28 @@
+#pragma once
+
+#include <cstddef>
+#include <cstdint>
+#include <span>
+#include <vector>
+
+#include <fesa/assembly/symmetric_csr.hpp>
+#include <fesa/model/ids.hpp>
+
+namespace fesa {
+
+struct MatrixContribution final {
+    std::size_t row;
+    std::size_t column;
+    ElementId element;
+    std::uint16_t local_order;
+    double value;
+};
+
+[[nodiscard]] std::vector<MatrixContribution> canonicalize_contributions(
+    std::span<const MatrixContribution> contributions);
+
+[[nodiscard]] SymmetricCsr merge_contributions(
+    std::size_t order,
+    std::span<const MatrixContribution> canonical);
+
+}  // namespace fesa