Warning, /AID2E-framework/examples/complete/workflow_example_single_objective.yml is written in an unsupported language. File is not indexed.
0001 problem:
0002 name: "DTLZ2 Single Objective Optimization"
0003 type: "toy"
0004 description: "Single-objective DTLZ2 test problem with scheduler cascade"
0005
0006 # Design space parameters
0007 design_space:
0008 path: "examples/complete/design.params"
0009
0010 # ========================================================================
0011 # OBJECTIVES: Define what we're optimizing for
0012 # ========================================================================
0013 # This is a SINGLE objective: f1 only (minimize)
0014 objectives:
0015 - name: "f1"
0016 direction: "minimize"
0017
0018 # Objective-level scheduler (applies to this objective's execution)
0019 scheduler:
0020 runner_type: "JobLibRunner"
0021 parameters:
0022 n_jobs: -1 # Use all available cores
0023 backend: "threading"
0024
0025 # Objective plan: HOW to compute f1
0026 objective_plan:
0027 steps:
0028 stages:
0029 - name: "evaluate_f1"
0030 script:
0031 path: "examples/complete/scripts/dtlz2_f1.py"
0032 output_file: "f1.json"
0033 timeout_sec: 600
0034 produces_objective: true
0035
0036 # Metrics to extract from the objective plan output
0037 metrics_keys: ["f1"]
0038
0039 # SECTION 2: SCHEDULER CONFIGURATION
0040 # Global scheduler defaults (can be overridden at workflow/branch/stage level)
0041 # ============================================================================
0042 scheduler:
0043 runner_type: "JobLibRunner"
0044 parameters:
0045 n_jobs: 4 # Use 4 parallel jobs by default
0046 backend: "loky" # Use process-based parallelism (default)
0047
0048 # SECTION 3: WORKFLOW EXECUTION
0049 # How to execute the optimization (stages, parallelism, etc.)
0050 # NOTE: When objectives are simple (single script call), workflows are optional
0051 # ============================================================================
0052 workflows:
0053 - name: "dtlz2_single_eval"
0054 description: "Single objective evaluation workflow"
0055
0056 # Workflow-level scheduler (OVERRIDES global scheduler)
0057 # PRECEDENCE: workflow scheduler > global scheduler
0058 scheduler:
0059 runner_type: "JobLibRunner"
0060 parameters:
0061 n_jobs: 8 # 8 jobs at workflow level
0062 backend: "threading"
0063
0064 branches:
0065 - name: "main"
0066 description: "Main evaluation branch"
0067
0068 # Branch-level scheduler (OVERRIDES workflow scheduler)
0069 # PRECEDENCE: branch scheduler > workflow scheduler > global scheduler
0070 scheduler:
0071 runner_type: "JobLibRunner"
0072 parameters:
0073 n_jobs: 2 # 2 jobs at branch level
0074 backend: "loky"
0075
0076 stages:
0077 - name: "evaluate"
0078 description: "Evaluate objective f1 for design points"
0079
0080 # Jobs: individual computational tasks
0081 jobs:
0082 - name: "compute_f1"
0083 command: "python examples/complete/scripts/dtlz2_f1.py"
0084 outputs:
0085 - path: "f1.json"
0086 format: "json"
0087
0088 # Job factory: parallelize the job across design points
0089 # Creates 4 copies of the job (one per design point)
0090 job_factory:
0091 type: "range"
0092 params:
0093 n: 4
0094
0095 # Parallelism policies
0096 parallelism:
0097 max_concurrent: 4 # Max 4 jobs running simultaneously
0098 retry_max: 2 # Retry failed jobs up to 2 times
0099 timeout_sec: 300 # Kill job if it exceeds 300 seconds
0100
0101 # Stage-level scheduler (OVERRIDES branch scheduler)
0102 # PRECEDENCE: stage scheduler > branch scheduler > workflow scheduler > global scheduler
0103 scheduler:
0104 runner_type: "JobLibRunner"
0105 parameters:
0106 n_jobs: 4 # 4 jobs at stage level
0107 backend: "loky"
0108
0109 # Output artifacts produced by this stage
0110 outputs:
0111 - path: "f1.json"
0112 format: "json"
