AstrAI/tests/trainer/test_trainer.py

63 lines
2.2 KiB
Python

from astrai.trainer import Trainer
# train_config_factory is injected via fixture
def test_different_batch_sizes(base_test_env, random_dataset, train_config_factory):
"""Test training with different batch sizes"""
batch_sizes = [1, 2, 4, 8]
for batch_per_device in batch_sizes:
train_config = train_config_factory(
model_fn=lambda: base_test_env["model"],
dataset=random_dataset,
test_dir=base_test_env["test_dir"],
device=base_test_env["device"],
batch_per_device=batch_per_device,
)
assert train_config.batch_per_device == batch_per_device
def test_gradient_accumulation(base_test_env, random_dataset, train_config_factory):
"""Test training with different gradient accumulation steps"""
grad_accum_steps_list = [1, 2, 4]
for grad_accum_steps in grad_accum_steps_list:
train_config = train_config_factory(
model_fn=lambda: base_test_env["model"],
dataset=random_dataset,
test_dir=base_test_env["test_dir"],
device=base_test_env["device"],
batch_per_device=2,
grad_accum_steps=grad_accum_steps,
)
trainer = Trainer(train_config)
trainer.train()
assert train_config.grad_accum_steps == grad_accum_steps
def test_memory_efficient_training(base_test_env, random_dataset, train_config_factory):
"""Test training with memory-efficient configurations"""
# Test with smaller batch sizes and gradient checkpointing
small_batch_configs = [
{"batch_per_device": 1, "grad_accum_steps": 8},
{"batch_per_device": 2, "grad_accum_steps": 4},
{"batch_per_device": 4, "grad_accum_steps": 2},
]
for config in small_batch_configs:
train_config = train_config_factory(
model_fn=lambda: base_test_env["model"],
dataset=random_dataset,
test_dir=base_test_env["test_dir"],
device=base_test_env["device"],
batch_per_device=config["batch_per_device"],
grad_accum_steps=config["grad_accum_steps"],
)
assert train_config.grad_accum_steps == config["grad_accum_steps"]
assert train_config.batch_per_device == config["batch_per_device"]