From 437ba4e22b2dad2ca309085a2e97f33dd03eb642 Mon Sep 17 00:00:00 2001
From: Gustaf Rydholm <gustaf.rydholm@gmail.com>
Date: Mon, 5 Jul 2021 00:21:43 +0200
Subject: Working on new hydra implementation

---
 training/run.py | 95 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 95 insertions(+)
 create mode 100644 training/run.py

(limited to 'training/run.py')

diff --git a/training/run.py b/training/run.py
new file mode 100644
index 0000000..ed1b372
--- /dev/null
+++ b/training/run.py
@@ -0,0 +1,95 @@
+"""Script to run experiments."""
+from typing import List, Optional, Type
+
+import hydra
+import loguru.logger as log
+from omegaconf import DictConfig
+from pytorch_lightning import (
+    Callback,
+    LightningDataModule,
+    LightningModule,
+    Trainer,
+    seed_everything,
+)
+from pytorch_lightning.loggers import LightningLoggerBase
+from torch import nn
+
+from utils import configure_logging
+
+
+def configure_callbacks(
+    config: DictConfig,
+) -> List[Type[Callback]]:
+    """Configures lightning callbacks."""
+    callbacks = []
+    if config.get("callbacks"):
+        for callback_config in config.callbacks.values():
+            if config.get("_target_"):
+                log.info(f"Instantiating callback <{callback_config._target_}>")
+                callbacks.append(hydra.utils.instantiate(callback_config))
+    return callbacks
+
+
+def configure_logger(config: DictConfig) -> List[Type[LightningLoggerBase]]:
+    logger = []
+    if config.get("logger"):
+        for logger_config in config.logger.values():
+            if config.get("_target_"):
+                log.info(f"Instantiating callback <{logger_config._target_}>")
+                logger.append(hydra.utils.instantiate(logger_config))
+    return logger
+
+
+def run(config: DictConfig) -> Optional[float]:
+    """Runs experiment."""
+    configure_logging(config.logging)
+    log.info("Starting experiment...")
+
+    if config.get("seed"):
+        seed_everything(config.seed)
+
+    log.info(f"Instantiating datamodule <{config.datamodule._target_}>")
+    datamodule: LightningDataModule = hydra.utils.instantiate(config.datamodule)
+
+    log.info(f"Instantiating network <{config.network._target_}>")
+    network: nn.Module = hydra.utils.instantiate(config.network, **datamodule.config())
+
+    log.info(f"Instantiating model <{config.model._target_}>")
+    model: LightningModule = hydra.utils.instantiate(
+        config.model,
+        network=network,
+        criterion=config.criterion,
+        optimizer=config.optimizer,
+        lr_scheduler=config.lr_scheduler,
+        _recursive_=False,
+    )
+
+    # Load callback and logger.
+    callbacks = configure_callbacks(config)
+    logger = configure_logger(config)
+
+    log.info(f"Instantiating trainer <{config.trainer._target_}>")
+    trainer: Trainer = hydra.utils.instantiate(
+        config.trainer, callbacks=callbacks, logger=logger, _convert_="partial"
+    )
+
+    # Log hyperparameters
+
+    if config.debug:
+        log.info("Fast development run...")
+        trainer.fit(model, datamodule=datamodule)
+        return None
+
+    if config.tune:
+        log.info("Tuning learning rate and batch size...")
+        trainer.tune(model, datamodule=datamodule)
+
+    if config.train:
+        log.info("Training network...")
+        trainer.fit(model, datamodule=datamodule)
+
+    if config.test:
+        log.info("Testing network...")
+        trainer.test(model, datamodule=datamodule)
+
+    # Make sure everything closes properly
-- 
cgit v1.2.3-70-g09d2