Source code for pytorch_lightning.accelerators.ipu
# Copyright The PyTorch Lightning team.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from typing import Any, Dict, List
import torch
from lightning_lite.utilities.types import _DEVICE
from pytorch_lightning.accelerators.accelerator import Accelerator
from pytorch_lightning.utilities.imports import _IPU_AVAILABLE
[docs]class IPUAccelerator(Accelerator):
"""Accelerator for IPUs."""
[docs] def get_device_stats(self, device: _DEVICE) -> Dict[str, Any]:
"""IPU device stats aren't supported yet."""
return {}
[docs] @staticmethod
def parse_devices(devices: int) -> int:
"""Accelerator device parsing logic."""
return devices
[docs] @staticmethod
def get_parallel_devices(devices: int) -> List[int]:
"""Gets parallel devices for the Accelerator."""
return list(range(devices))
[docs] @staticmethod
def auto_device_count() -> int:
"""Get the devices when set to auto."""
# TODO (@kaushikb11): 4 is the minimal unit they are shipped in.
# Update this when api is exposed by the Graphcore team.
return 4
@classmethod
def register_accelerators(cls, accelerator_registry: Dict) -> None:
accelerator_registry.register(
"ipu",
cls,
description=f"{cls.__class__.__name__}",
)