Skip to content

refactor: apg: normalize diff_norm calculation by tensor size #1620

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
leejet merged 1 commit into from
Jun 8, 2026
+2 −1
Merged

refactor: apg: normalize diff_norm calculation by tensor size #1620

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
3 changes: 2 additions & 1 deletion src/runtime/guidance.cpp
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -173,8 +173,9 @@ namespace sd::guidance {
}

float diff_norm = 0.0f;
const int standard_res = 2 * 1024 / 8; // Use SDXL as the standard resolution (1024x1024, 8x8 patches, 4=2x2 channels)
if (params_.norm_threshold > 0.0f) {
diff_norm = std::sqrt((deltas * deltas).sum());
diff_norm = std::sqrt((deltas * deltas).sum()) * standard_res / std::sqrt(static_cast<float>(deltas.numel()));
}

float apg_scale_factor = 1.0f;
Expand Down
Loading