feat: create SAT3_Trajectory study with Zernike Trajectory Method
First production implementation of trajectory-based optimization for M1 mirror. Study Configuration: - Optimizer: TPE (100 trials, 15 startup) - Primary objective: total_filtered_rms_nm (integrated RMS across 20-60 deg) - Logged objectives: coma_rms_nm, astigmatism_rms_nm, trefoil_rms_nm, spherical_rms_nm - Design variables: 11 (full wiffle tree + lateral supports) - Physics validation: R² fit quality monitoring Key Features: - Mode-specific aberration tracking (coma, astigmatism, trefoil, spherical) - Physics-based trajectory model: c_j(θ) = a_j·sin(θ) + b_j·cos(θ) - Sensitivity analysis: axial vs lateral load contributions - OPD correction with focal_length=22000mm - Annular aperture (inner_radius=135.75mm) Validation Results: - Tested on existing M1_Tensor OP2: R²=1.0000 (perfect fit) - Baseline total RMS: 4.30 nm - All 5 angles auto-detected: [20, 30, 40, 50, 60] deg - Dominant mode: spherical (10.51 nm) Files Created: - studies/M1_Mirror/SAT3_Trajectory/README.md (complete documentation) - studies/M1_Mirror/SAT3_Trajectory/STUDY_REPORT.md (results template) - studies/M1_Mirror/SAT3_Trajectory/run_optimization.py (TPE + trajectory extraction) - studies/M1_Mirror/SAT3_Trajectory/1_setup/optimization_config.json (TPE config) - studies/M1_Mirror/SAT3_Trajectory/1_setup/model/ (all NX files copied from M1_Tensor) - test_trajectory_extractor.py (validation script) References: - Physics: docs/physics/ZERNIKE_TRAJECTORY_METHOD.md - Handoff: docs/handoff/SETUP_TRAJECTORY_OPTIMIZATION.md - Extractor: optimization_engine/extractors/extract_zernike_trajectory.py Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
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studies/M1_Mirror/SAT3_Trajectory/run_optimization.py
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studies/M1_Mirror/SAT3_Trajectory/run_optimization.py
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#!/usr/bin/env python3
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"""
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M1 Mirror SAT3_Trajectory - Trajectory-Based Optimization (TPE)
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================================================================
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First implementation of Zernike Trajectory Method for M1 mirror optimization.
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Key Features:
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1. TPE sampler - 100 trials, 15 startup
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2. Trajectory analysis across 5 angles (20°, 30°, 40°, 50°, 60°)
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3. Primary objective: total_filtered_rms_nm (integrated RMS across operating range)
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4. Logged objectives (weight=0): coma_rms_nm, astigmatism_rms_nm, trefoil_rms_nm, spherical_rms_nm
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5. Full wiffle tree + lateral support parameters (11 design variables)
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6. OPD correction with focal_length=22000mm and annular aperture (inner_radius=135.75mm)
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Usage:
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python run_optimization.py --start
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python run_optimization.py --start --trials 100
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python run_optimization.py --start --trials 100 --resume
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python run_optimization.py --test # Single trial test
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Author: Atomizer
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Created: 2026-01-29
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"""
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import sys
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import os
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import subprocess
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LICENSE_SERVER = "28000@dalidou;28000@100.80.199.40"
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os.environ['SPLM_LICENSE_SERVER'] = LICENSE_SERVER
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print(f"[LICENSE] SPLM_LICENSE_SERVER set to: {LICENSE_SERVER}")
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# Add Atomizer root to path
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STUDY_DIR = os.path.dirname(os.path.abspath(__file__))
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PROJECT_ROOT = os.path.dirname(os.path.dirname(os.path.dirname(STUDY_DIR)))
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sys.path.insert(0, PROJECT_ROOT)
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import json
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import time
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import argparse
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import logging
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import shutil
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import re
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from pathlib import Path
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from typing import Dict, Optional, Any
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from datetime import datetime
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# ============================================================================
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# Dashboard Auto-Launch
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# ============================================================================
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def launch_dashboard():
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"""Launch the Atomizer dashboard in background."""
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dashboard_dir = Path(PROJECT_ROOT) / "atomizer-dashboard"
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start_script = dashboard_dir / "start-dashboard.bat"
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if not start_script.exists():
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print(f"[DASHBOARD] Warning: start-dashboard.bat not found at {start_script}")
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return False
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try:
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subprocess.Popen(
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["cmd", "/c", "start", "/min", str(start_script)],
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cwd=str(dashboard_dir),
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shell=True,
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stdout=subprocess.DEVNULL,
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stderr=subprocess.DEVNULL
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)
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print("[DASHBOARD] Launched in background")
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print("[DASHBOARD] Frontend: http://localhost:5173")
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print("[DASHBOARD] Backend: http://localhost:8000")
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return True
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except Exception as e:
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print(f"[DASHBOARD] Failed to launch: {e}")
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return False
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import optuna
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from optuna.samplers import TPESampler
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# Atomizer imports
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from optimization_engine.nx.solver import NXSolver
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from optimization_engine.extractors.extract_zernike_trajectory import extract_zernike_trajectory
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# ============================================================================
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# Paths
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# ============================================================================
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STUDY_DIR = Path(__file__).parent
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SETUP_DIR = STUDY_DIR / "1_setup"
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MODEL_DIR = SETUP_DIR / "model"
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ITERATIONS_DIR = STUDY_DIR / "2_iterations"
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RESULTS_DIR = STUDY_DIR / "3_results"
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CONFIG_PATH = SETUP_DIR / "optimization_config.json"
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# Ensure directories exist
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ITERATIONS_DIR.mkdir(exist_ok=True)
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RESULTS_DIR.mkdir(exist_ok=True)
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# Logging
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LOG_FILE = RESULTS_DIR / "optimization.log"
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logging.basicConfig(
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level=logging.INFO,
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format='%(asctime)s | %(levelname)-8s | %(message)s',
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handlers=[
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logging.StreamHandler(sys.stdout),
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logging.FileHandler(LOG_FILE, mode='a')
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]
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)
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logger = logging.getLogger(__name__)
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# ============================================================================
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# Configuration
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# ============================================================================
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with open(CONFIG_PATH) as f:
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CONFIG = json.load(f)
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STUDY_NAME = CONFIG["study_name"]
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# Primary objective is total_filtered_rms_nm (weight=1.0)
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# All other objectives are logged only (weight=0)
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def compute_weighted_sum(objectives: Dict[str, float]) -> float:
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"""Compute weighted sum - only total_filtered_rms_nm has weight=1.0."""
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return objectives.get('total_filtered_rms_nm', 1000.0)
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# Hard constraint: blank_mass <= 120kg
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MAX_BLANK_MASS_KG = 120.0
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CONSTRAINT_PENALTY = 1e6
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# Trajectory settings
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REFERENCE_ANGLE = CONFIG['extraction_method'].get('reference_angle', 20.0)
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FOCAL_LENGTH = CONFIG['extraction_method'].get('focal_length', 22000.0)
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INNER_RADIUS_MM = CONFIG['extraction_method'].get('inner_radius', 135.75)
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def check_mass_constraint(mass_kg: float) -> tuple:
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"""Check if mass constraint is satisfied."""
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if mass_kg <= MAX_BLANK_MASS_KG:
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return True, 0.0
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else:
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return False, mass_kg - MAX_BLANK_MASS_KG
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# ============================================================================
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# FEA Runner with Trajectory Extraction
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# ============================================================================
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class FEARunner:
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"""Runs FEA simulations with Zernike Trajectory extraction."""
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def __init__(self, config: Dict[str, Any]):
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self.config = config
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self.nx_solver = None
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self.master_model_dir = MODEL_DIR
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# Get fixed parameter values
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self.fixed_params = {}
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for fp in config.get('fixed_parameters', []):
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self.fixed_params[fp['name']] = fp['value']
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def setup(self):
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"""Setup NX solver (assumes NX is already running)."""
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study_name = self.config.get('study_name', 'SAT3_Trajectory')
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nx_settings = self.config.get('nx_settings', {})
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nx_install_dir = nx_settings.get('nx_install_path', 'C:\\Program Files\\Siemens\\DesigncenterNX2512')
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version_match = re.search(r'NX(\d+)|DesigncenterNX(\d+)', nx_install_dir)
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nastran_version = (version_match.group(1) or version_match.group(2)) if version_match else "2512"
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self.nx_solver = NXSolver(
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master_model_dir=str(self.master_model_dir),
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nx_install_dir=nx_install_dir,
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nastran_version=nastran_version,
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timeout=nx_settings.get('simulation_timeout_s', 600),
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use_iteration_folders=True,
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study_name=study_name
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)
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logger.info(f"[NX] Solver ready (Nastran {nastran_version})")
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def run_fea(self, params: Dict[str, float], trial_num: int) -> Optional[Dict]:
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"""Run FEA and extract objectives using Zernike Trajectory Method."""
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if self.nx_solver is None:
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self.setup()
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logger.info(f" [FEA {trial_num}] Running simulation...")
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# Build expressions
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expressions = {}
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for name, value in self.fixed_params.items():
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expressions[name] = value
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for var in self.config['design_variables']:
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if var.get('enabled', True) and var['name'] in params:
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expressions[var['expression_name']] = params[var['name']]
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iter_folder = self.nx_solver.create_iteration_folder(
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iterations_base_dir=ITERATIONS_DIR,
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iteration_number=trial_num,
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expression_updates=expressions
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)
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try:
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nx_settings = self.config.get('nx_settings', {})
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sim_file = iter_folder / nx_settings.get('sim_file', 'ASSY_M1_assyfem1_sim1.sim')
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t_start = time.time()
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result = self.nx_solver.run_simulation(
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sim_file=sim_file,
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working_dir=iter_folder,
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expression_updates=expressions,
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solution_name=nx_settings.get('solution_name', 'Solution 1'),
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cleanup=False
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)
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solve_time = time.time() - t_start
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if not result['success']:
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logger.error(f" [FEA {trial_num}] Solve failed: {result.get('error')}")
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return None
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logger.info(f" [FEA {trial_num}] Solved in {solve_time:.1f}s")
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# Extract objectives using Zernike Trajectory Method
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op2_path = Path(result['op2_file'])
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objectives = self._extract_objectives_trajectory(op2_path, iter_folder)
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if objectives is None:
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return None
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# Check constraint
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mass_kg = objectives['mass_kg']
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is_feasible, violation = check_mass_constraint(mass_kg)
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if is_feasible:
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weighted_sum = compute_weighted_sum(objectives)
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constraint_status = "OK"
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else:
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weighted_sum = compute_weighted_sum(objectives) + CONSTRAINT_PENALTY * violation
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constraint_status = f"VIOLATED (+{violation:.1f}kg)"
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logger.info(f" [FEA {trial_num}] Total RMS: {objectives['total_filtered_rms_nm']:.2f} nm (PRIMARY)")
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logger.info(f" [FEA {trial_num}] Coma RMS: {objectives['coma_rms_nm']:.2f} nm (logged)")
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logger.info(f" [FEA {trial_num}] Astig RMS: {objectives['astigmatism_rms_nm']:.2f} nm (logged)")
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logger.info(f" [FEA {trial_num}] Trefoil RMS: {objectives['trefoil_rms_nm']:.2f} nm (logged)")
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logger.info(f" [FEA {trial_num}] Spher RMS: {objectives['spherical_rms_nm']:.2f} nm (logged)")
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logger.info(f" [FEA {trial_num}] R² fit: {objectives['linear_fit_r2']:.4f} (physics validation)")
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logger.info(f" [FEA {trial_num}] Mass: {objectives['mass_kg']:.3f} kg [Constraint: {constraint_status}]")
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logger.info(f" [FEA {trial_num}] Weighted Sum: {weighted_sum:.2f}")
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return {
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'trial_num': trial_num,
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'params': params,
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'objectives': objectives,
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'weighted_sum': weighted_sum,
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'is_feasible': is_feasible,
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'constraint_violation': violation,
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'source': 'FEA_ZernikeTrajectory',
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'solve_time': solve_time,
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'iter_folder': str(iter_folder)
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}
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except Exception as e:
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logger.error(f" [FEA {trial_num}] Error: {e}")
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import traceback
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traceback.print_exc()
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return None
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def _extract_objectives_trajectory(self, op2_path: Path, iter_folder: Path) -> Optional[Dict]:
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"""
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Extract objectives using Zernike Trajectory Method.
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Analyzes 5 elevation angles (20, 30, 40, 50, 60 deg) and provides:
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- total_filtered_rms_nm: Integrated RMS across operating range
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- Mode-specific RMS: coma, astigmatism, trefoil, spherical
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- linear_fit_r2: Physics model validation
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"""
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try:
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# Run trajectory extraction
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result = extract_zernike_trajectory(
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op2_file=op2_path,
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reference_angle=REFERENCE_ANGLE,
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focal_length=FOCAL_LENGTH,
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unit='mm'
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)
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# Extract mass from temp file
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mass_kg = 0.0
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mass_file = iter_folder / "_temp_mass.txt"
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if mass_file.exists():
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try:
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with open(mass_file, 'r') as f:
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mass_kg = float(f.read().strip())
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except Exception as mass_err:
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logger.warning(f" Could not read mass file: {mass_err}")
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if mass_kg == 0:
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props_file = iter_folder / "_temp_part_properties.json"
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if props_file.exists():
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try:
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with open(props_file, 'r') as f:
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props = json.load(f)
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mass_kg = props.get('mass_kg', 0)
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except Exception:
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pass
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objectives = {
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'total_filtered_rms_nm': result['total_filtered_rms_nm'],
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'coma_rms_nm': result['coma_rms_nm'],
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'astigmatism_rms_nm': result['astigmatism_rms_nm'],
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'trefoil_rms_nm': result['trefoil_rms_nm'],
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'spherical_rms_nm': result['spherical_rms_nm'],
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'linear_fit_r2': result['linear_fit_r2'],
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'mass_kg': mass_kg
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}
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return objectives
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except Exception as e:
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logger.error(f"Trajectory extraction failed: {e}")
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import traceback
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traceback.print_exc()
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return None
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# ============================================================================
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# TPE Optimizer
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# ============================================================================
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class TPEOptimizer:
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"""TPE optimizer for trajectory-based optimization."""
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def __init__(self, config: Dict[str, Any], resume: bool = False):
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self.config = config
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self.resume = resume
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self.fea_runner = FEARunner(config)
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# Load design variable bounds
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self.design_vars = {
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v['name']: {'min': v['min'], 'max': v['max'], 'baseline': v.get('baseline')}
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for v in config['design_variables']
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if v.get('enabled', True)
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}
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# TPE settings
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opt_settings = config.get('optimization', {})
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self.n_startup_trials = opt_settings.get('n_startup_trials', 15)
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self.seed = opt_settings.get('seed', 42)
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# Study
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self.study_name = config.get('study_name', 'SAT3_Trajectory')
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self.db_path = RESULTS_DIR / "study.db"
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# Track best
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self.best_weighted_sum = float('inf')
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self.best_trial_info = None
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# Track FEA count
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self._count_existing_iterations()
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def _count_existing_iterations(self):
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"""Count existing iteration folders."""
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self.fea_count = 0
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if ITERATIONS_DIR.exists():
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for d in ITERATIONS_DIR.iterdir():
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if d.is_dir() and d.name.startswith('iter'):
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self.fea_count += 1
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logger.info(f"[INIT] Found {self.fea_count} existing FEA runs")
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def objective_function(self, trial: optuna.Trial) -> float:
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"""Optuna objective function."""
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# Sample parameters
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params = {}
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for name, bounds in self.design_vars.items():
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params[name] = trial.suggest_float(name, bounds['min'], bounds['max'])
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# Run FEA
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self.fea_count += 1
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result = self.fea_runner.run_fea(params, self.fea_count)
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if result is None:
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raise optuna.TrialPruned()
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# Log all objectives (TPE only optimizes the return value, but we want all logged)
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for obj_name, obj_value in result['objectives'].items():
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trial.set_user_attr(obj_name, obj_value)
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trial.set_user_attr('is_feasible', result['is_feasible'])
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trial.set_user_attr('solve_time', result['solve_time'])
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trial.set_user_attr('source', result['source'])
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# Track best
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if result['weighted_sum'] < self.best_weighted_sum:
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self.best_weighted_sum = result['weighted_sum']
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self.best_trial_info = result
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logger.info(f" [NEW BEST] Trial {result['trial_num']}: {result['weighted_sum']:.2f}")
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return result['weighted_sum']
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def run(self, n_trials: int = 100):
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"""Run TPE optimization."""
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logger.info("="*80)
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logger.info(f"Starting TPE Trajectory Optimization: {self.study_name}")
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logger.info(f"Design Variables: {len(self.design_vars)}")
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logger.info(f"n_trials: {n_trials}, n_startup_trials: {self.n_startup_trials}")
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logger.info("="*80)
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# Create or load study
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storage = f"sqlite:///{self.db_path}"
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if self.resume:
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logger.info(f"[RESUME] Loading existing study from {self.db_path}")
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study = optuna.load_study(study_name=self.study_name, storage=storage)
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else:
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logger.info(f"[NEW] Creating new study at {self.db_path}")
|
||||
sampler = TPESampler(
|
||||
n_startup_trials=self.n_startup_trials,
|
||||
seed=self.seed
|
||||
)
|
||||
study = optuna.create_study(
|
||||
study_name=self.study_name,
|
||||
storage=storage,
|
||||
sampler=sampler,
|
||||
direction='minimize',
|
||||
load_if_exists=False
|
||||
)
|
||||
|
||||
# Run optimization
|
||||
study.optimize(self.objective_function, n_trials=n_trials)
|
||||
|
||||
logger.info("="*80)
|
||||
logger.info(f"Optimization Complete!")
|
||||
logger.info(f"Best weighted sum: {self.best_weighted_sum:.2f}")
|
||||
if self.best_trial_info:
|
||||
logger.info(f"Best objectives:")
|
||||
for k, v in self.best_trial_info['objectives'].items():
|
||||
logger.info(f" {k}: {v:.3f}")
|
||||
logger.info("="*80)
|
||||
|
||||
|
||||
# ============================================================================
|
||||
# Main Entry Point
|
||||
# ============================================================================
|
||||
|
||||
def main():
|
||||
parser = argparse.ArgumentParser(description="SAT3 Trajectory Optimization (TPE)")
|
||||
parser.add_argument('--start', action='store_true', help='Start optimization')
|
||||
parser.add_argument('--trials', type=int, default=100, help='Number of trials (default: 100)')
|
||||
parser.add_argument('--resume', action='store_true', help='Resume existing study')
|
||||
parser.add_argument('--test', action='store_true', help='Run single FEA test')
|
||||
parser.add_argument('--no-dashboard', action='store_true', help="Don't auto-launch dashboard")
|
||||
|
||||
args = parser.parse_args()
|
||||
|
||||
if args.start:
|
||||
# Launch dashboard unless disabled
|
||||
if not args.no_dashboard:
|
||||
launch_dashboard()
|
||||
time.sleep(2)
|
||||
|
||||
optimizer = TPEOptimizer(CONFIG, resume=args.resume)
|
||||
optimizer.run(n_trials=args.trials)
|
||||
|
||||
elif args.test:
|
||||
logger.info("[TEST] Running single FEA trial...")
|
||||
runner = FEARunner(CONFIG)
|
||||
|
||||
# Use baseline values
|
||||
params = {v['name']: v['baseline'] for v in CONFIG['design_variables'] if v.get('enabled', True)}
|
||||
|
||||
result = runner.run_fea(params, trial_num=0)
|
||||
if result:
|
||||
logger.info("[TEST] Success!")
|
||||
else:
|
||||
logger.error("[TEST] Failed")
|
||||
sys.exit(1)
|
||||
|
||||
else:
|
||||
parser.print_help()
|
||||
|
||||
|
||||
if __name__ == '__main__':
|
||||
main()
|
||||
Reference in New Issue
Block a user