Skip to content

[opt] Reduce the size of the BDD ITE cache. #4126

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
copybara-service merged 1 commit into from
Apr 20, 2026
Merged

[opt] Reduce the size of the BDD ITE cache. #4126

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
5 changes: 3 additions & 2 deletions xls/data_structures/binary_decision_diagram.h
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -329,8 +329,9 @@ class BinaryDecisionDiagram {
};
using LossyArray = std::vector<IteCacheEntry>;

static constexpr size_t kLossyCacheSize = size_t{1} << 20;
static constexpr size_t kCutoverThreshold = size_t{1} << 20;
// Each entry in the lossy cache is 16 bytes, so this is 2MB.
static constexpr size_t kLossyCacheSize = size_t{1} << 17;
static constexpr size_t kCutoverThreshold = size_t{1} << 17;

DynamicIteCache() : cache_(ExactMap()) {}

Expand Down
Loading