Port LHS sweep code from OpenFASOC and fix import paths for gLayout #70
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Phase 1: File Porting - Ported 35+ files from OpenFASOC/glayout/flow/blocks/elementary/LHS - Core engines: run_dataset_multiprocess.py, elhs.py, run_lhs_files.py - Cell implementations: transmission_gate.py, fvf.py, lvcm.py, current_mirror.py, diff_pair.py, opamp.py - Evaluation framework: evaluator_wrapper.py, verification.py, physical_features.py - Analysis tools: analyze_dataset.py, assemble_dataset.py, dataset_curator.py - Documentation: HowToRun.md, multiple README files - Test files and utilities Phase 2: Path Adjustments - Fixed 97 import statements across 15 Python files - Changed glayout.flow.* → glayout.* (blocks, pdk, primitives, routing, spice) - Changed glayout.pdk.util.* → glayout.util.* - Modified robust_verification.py to auto-detect PDK paths - Removed hardcoded path, added OpenFASOC fallback location Testing: - Successfully loaded 3464 parameter combinations - Script initializes and starts dataset generation - DRC, LVS, PEX framework validated Infrastructure: - Added Genv/ to .gitignore (virtual environment) Next: Phase 3 - Multi-cell support implementation
Apply same PDK auto-detection fix to ATLAS version: - Remove hardcoded path /home/adityakak/.conda/envs/GLDev - Add fallback to OpenFASOC PDK location - Try multiple common PDK installation paths - Improve error message with list of attempted paths This ensures consistent PDK detection across all modules.
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This PR brings the comprehensive dataset generation infrastructure from OpenFASOC/AL-255, which enables automated generation of large-scale circuit datasets with proper parameter space exploration using LHS and Orthogonal Array sampling.