Challenge solved#1
Merged
Merged
Conversation
Contributor
|
Can you submit a PR with just the update to the README with your addition to the leaderboard. And sort by overlap, then, wirelength, then runtime, |
Contributor
Author
Yup, got it. |
PrithviSeran
force-pushed
the
challenge-solved
branch
from
9610a0e to
e66c500
Compare
Contributor
OmMistry25
added a commit
to OmMistry25/intern_challenge
that referenced
this pull request
Sep 30, 2025
…eda#1) - Implemented multi-scale polynomial penalty in overlap_repulsion_loss() - Optimized hyperparameters: lambda_overlap=5000-10000, adaptive epochs - Achieved 0.0177 average overlap (beats previous partcleda#1 by 64.5%) - Wirelength: 0.4902 (comparable to leader) - Runtime: 407.78s Key innovations: - Quartic + cubic + quadratic + linear penalty terms for robust gradients - Adaptive epochs (3500-5000) based on design size - Early stopping when overlap-free for 50 epochs - Higher learning rate (0.05-0.1) for faster convergence Test Results: 5/10 perfect (0.0 overlap), average 0.0177 across all tests
ashvin-verma
added a commit
to ashvin-verma/intern_challenge
that referenced
this pull request
Mar 22, 2026
Pipeline: annealed softplus overlap loss → density penalty → deterministic legalization → greedy repair. Scalable spatial hash handles 100K+ cells. Key components in ashvin/: - solver.py: single-stage annealed solver (softplus beta 0.1→6.0, lambda ramp) - overlap.py: two-tier spatial hash (macros exhaustive, std cells binned) - density.py: bilinear density penalty - legalize.py: row-based packing with macro repair - repair.py: greedy nudge with brute-force fallback - config.py: preset configs for optuna tuning - run_tests.py: instrumented runner with CSV output - view.py: versioned placement visualizations Results: 0.0000 overlap on tests 1-10 (verified on alternate seeds). WL ~0.51 (leaderboard partcleda#1 is 0.13 — Phase 2 target). Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
3 participants
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
No description provided.