2025-11-16 13:35:41 -05:00
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# Changelog
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All notable changes to Atomizer will be documented in this file.
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The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
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## [Unreleased]
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2025-11-17 12:34:06 -05:00
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### Phase 3.2 - Integration & NX Enhancements (In Progress)
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#### Added
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- **NX Expression Import System** (2025-11-17)
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- Robust .exp file-based expression updates via NX journal scripts
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- Supports ALL NX expression types including binary-stored ones
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- Automatic unit detection and formatting
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- Fixes issue with `hole_count` and other feature-linked expressions
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- Documentation: [NX_EXPRESSION_IMPORT_SYSTEM.md](docs/NX_EXPRESSION_IMPORT_SYSTEM.md)
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- New journal: `import_expressions.py` for .exp file import
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- Enhanced `nx_updater.py` with `update_expressions_via_import()` method
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- **4D Design Space Validation** (2025-11-17)
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- Validated full 4-variable optimization (beam_half_core_thickness, beam_face_thickness, holes_diameter, hole_count)
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- All variables now updating correctly in optimization loop
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- Mesh adaptation verified across different hole_count values
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### Phase 2 - LLM Integration (Completed 85%)
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2025-11-16 13:35:41 -05:00
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- Natural language interface for optimization configuration
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- Feature registry with capability catalog
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- Claude skill for Atomizer navigation
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2025-11-17 12:34:06 -05:00
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- LLM workflow analyzer and extractor orchestration
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- Dynamic code generation for hooks and extractors
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2025-11-16 13:35:41 -05:00
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---
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## [0.2.0] - 2025-01-16
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### Phase 1 - Plugin System & Infrastructure ✅
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#### Added
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- **Plugin Architecture**
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- Hook manager with lifecycle execution at `pre_solve`, `post_solve`, and `post_extraction` points
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- Plugin auto-discovery from `optimization_engine/plugins/` directory
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- Priority-based hook execution
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- Context passing system for hooks (output_dir, trial_number, design_variables, results)
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- **Logging Infrastructure**
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- Detailed per-trial logs in `optimization_results/trial_logs/`
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- Complete iteration trace with timestamps
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- Design variables, configuration, execution timeline
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- Extracted results and constraint evaluations
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- High-level optimization progress log (`optimization.log`)
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- Configuration summary header
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- Trial START and COMPLETE entries (one line per trial)
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- Compact format for easy progress monitoring
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- **Logging Plugins**
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- `detailed_logger.py` - Creates detailed trial logs
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- `optimization_logger.py` - Creates high-level optimization.log
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- `log_solve_complete.py` - Appends solve completion to trial logs
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- `log_results.py` - Appends extracted results to trial logs
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- `optimization_logger_results.py` - Appends results to optimization.log
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- **Project Organization**
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- Studies folder structure with standardized layout
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- Comprehensive studies documentation ([studies/README.md](studies/README.md))
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- Model files organized in `model/` subdirectory (`.prt`, `.sim`, `.fem`)
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- Intelligent path resolution system (`atomizer_paths.py`)
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- Marker-based project root detection
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- **Test Suite**
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- `test_hooks_with_bracket.py` - Hook validation test (3 trials)
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- `run_5trial_test.py` - Quick integration test (5 trials)
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- `test_journal_optimization.py` - Full optimization test
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#### Changed
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- Renamed `examples/` folder to `studies/`
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- Moved bracket example to `studies/bracket_stress_minimization/`
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- Consolidated FEA files into `model/` subfolder
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- Updated all test scripts to use `atomizer_paths` for imports
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- Runner now passes `output_dir` to all hook contexts
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#### Removed
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- Obsolete test scripts from examples/ (14 files deleted)
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- `optimization_logs/` and `optimization_results/` from root directory
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#### Fixed
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- Log files now correctly generated in study-specific `optimization_results/` folder
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- Path resolution works regardless of script location
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- Hooks properly registered with `register_hooks()` function
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---
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## [0.1.0] - 2025-01-10
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### Initial Release
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#### Core Features
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- Optuna integration with TPE sampler
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- NX journal integration for expression updates and simulation execution
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- OP2 result extraction (stress, displacement)
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- Study management with folder-based isolation
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- Web dashboard for real-time monitoring
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- Precision control (4-decimal rounding for mm/degrees/MPa)
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- Crash recovery and optimization resumption
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---
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## Development Timeline
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- **Phase 1** (✅ Completed 2025-01-16): Plugin system & hooks
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- **Phase 2** (🟡 Starting): LLM interface with natural language configuration
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- **Phase 3** (Planned): Dynamic code generation for custom objectives
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- **Phase 4** (Planned): Intelligent analysis and surrogate quality assessment
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- **Phase 5** (Planned): Automated HTML/PDF report generation
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- **Phase 6** (Planned): NX MCP server with full API documentation
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- **Phase 7** (Planned): Self-improving feature registry
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---
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**Maintainer**: Antoine Polvé (antoine@atomaste.com)
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**License**: Proprietary - Atomaste © 2025
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