speed up sat scheduling code

2023-10-25 17:05:22 +02:00
parent fb7aa1b853
commit 044bc5ebce
7 changed files with 70 additions and 57 deletions
--- a/ortools/sat/linear_relaxation.cc
+++ b/ortools/sat/linear_relaxation.cc
@@ -688,7 +688,7 @@ std::optional<AffineExpression> DetectMakespanFromPrecedences(
    const SchedulingConstraintHelper& helper, Model* model) {
  if (helper.NumTasks() == 0) return {};

-  const std::vector<AffineExpression>& ends = helper.Ends();
+  const absl::Span<const AffineExpression> ends = helper.Ends();
  std::vector<IntegerVariable> end_vars;
  for (const AffineExpression& end : ends) {
    // TODO(user): Deal with constant end.