mirror of
https://github.com/ROCm/jax.git
synced 2025-04-16 03:46:06 +00:00
46 lines
1.4 KiB
Python
46 lines
1.4 KiB
Python
# Copyright 2020 The JAX Authors.
|
|
#
|
|
# 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
|
|
#
|
|
# https://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.
|
|
|
|
"""Utilities for running JAX on Cloud TPUs via Colab."""
|
|
|
|
import requests
|
|
import os
|
|
|
|
from jax.config import config
|
|
|
|
TPU_DRIVER_MODE = 0
|
|
|
|
|
|
def setup_tpu(tpu_driver_version='tpu_driver_20221011'):
|
|
"""Sets up Colab to run on TPU.
|
|
|
|
Note: make sure the Colab Runtime is set to Accelerator: TPU.
|
|
|
|
Args
|
|
----
|
|
tpu_driver_version : (str) specify the version identifier for the tpu driver.
|
|
Set to "tpu_driver_nightly" to use the nightly tpu driver build.
|
|
"""
|
|
global TPU_DRIVER_MODE
|
|
|
|
if not TPU_DRIVER_MODE:
|
|
colab_tpu_addr = os.environ['COLAB_TPU_ADDR'].split(':')[0]
|
|
url = f'http://{colab_tpu_addr}:8475/requestversion/{tpu_driver_version}'
|
|
requests.post(url)
|
|
TPU_DRIVER_MODE = 1
|
|
|
|
# The following is required to use TPU Driver as JAX's backend.
|
|
config.FLAGS.jax_xla_backend = "tpu_driver"
|
|
config.FLAGS.jax_backend_target = "grpc://" + os.environ['COLAB_TPU_ADDR']
|