Initialize the scheduler from configuration and previous state (for resume support). Args: explorer_state (Dict): Restoration state from checkpoint (may include progress info) config (Config): Full system configuration containing buffer and taskset settings
(self, explorer_state: Dict, config: Config)
| 102 | """ |
| 103 | |
| 104 | def __init__(self, explorer_state: Dict, config: Config): |
| 105 | """ |
| 106 | Initialize the scheduler from configuration and previous state (for resume support). |
| 107 | |
| 108 | Args: |
| 109 | explorer_state (Dict): Restoration state from checkpoint (may include progress info) |
| 110 | config (Config): Full system configuration containing buffer and taskset settings |
| 111 | """ |
| 112 | super().__init__(explorer_state, config) |
| 113 | |
| 114 | # Backward compatibility: old format stored 'latest_task_index' directly |
| 115 | if "latest_task_index" in explorer_state: |
| 116 | assert len(config.buffer.explorer_input.tasksets) == 1 # old format |
| 117 | explorer_state["taskset_states"] = [ |
| 118 | { |
| 119 | "current_index": explorer_state["latest_task_index"], |
| 120 | } |
| 121 | ] |
| 122 | |
| 123 | self.read_batch_size = config.buffer.batch_size |
| 124 | taskset_configs = config.buffer.explorer_input.tasksets |
| 125 | |
| 126 | from trinity.buffer.reader.file_reader import FileReader |
| 127 | |
| 128 | taskset_states = explorer_state.get( |
| 129 | "taskset_states", [{"current_index": 0}] * len(taskset_configs) |
| 130 | ) |
| 131 | self.tasksets = [] |
| 132 | for taskset_config, taskset_state in zip(taskset_configs, taskset_states): |
| 133 | assert not taskset_config.is_eval # assume drop last |
| 134 | taskset = get_buffer_reader(taskset_config) |
| 135 | if not isinstance(taskset, FileReader): |
| 136 | raise TypeError( |
| 137 | f"Taskset '{taskset_config.name}' has an unsupported type '{type(taskset).__name__}'." |
| 138 | f"Currently, only 'FileReader' is supported by TasksetScheduler." |
| 139 | ) |
| 140 | taskset.load_state_dict(taskset_state) # Restore any prior state |
| 141 | self.tasksets.append(taskset) |
| 142 | |
| 143 | # Each explorer step calls read once → track step globally |
| 144 | self.step = explorer_state.get("latest_iteration", 0) |
| 145 | |
| 146 | # Build flat list indicating how often each taskset should appear per epoch |
| 147 | self.base_taskset_ids = [] |
| 148 | for i, taskset in enumerate(self.tasksets): |
| 149 | self.base_taskset_ids.extend([i] * len(taskset)) |
| 150 | if len(self.base_taskset_ids) == 0: |
| 151 | raise ValueError("Empty tasksets provided!") |
| 152 | |
| 153 | self.epoch = self.step * self.read_batch_size // len(self.base_taskset_ids) |
| 154 | self.orders = self.build_orders(self.epoch) |
| 155 | |
| 156 | if self.config.buffer.total_steps: |
| 157 | self.max_steps = self.config.buffer.total_steps |
| 158 | else: |
| 159 | self.max_steps = ( |
| 160 | self.config.buffer.total_epochs * len(self.base_taskset_ids) // self.read_batch_size |
| 161 | ) |
no test coverage detected