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#!/usr/bin/env python
_description = "Run commands across TPU VMs for initial setup before running `accelerate launch`."
def tpu_command_parser(subparsers=None):
if subparsers is not None:
parser = subparsers.add_parser("tpu-config", description=_description)
else:
parser = argparse.ArgumentParser("Accelerate tpu-config command", description=_description)
# Core arguments
config_args = parser.add_argument_group(
"Config Arguments", "Arguments that can be configured through `accelerate config`."
)
config_args.add_argument(
"--config_file",
type=str,
default=None,
help="Path to the config file to use for accelerate.",
)
config_args.add_argument(
"--tpu_name",
default=None,
help="The name of the TPU to use. If not specified, will use the TPU specified in the config file.",
)
config_args.add_argument(
"--tpu_zone",
default=None,
help="The zone of the TPU to use. If not specified, will use the zone specified in the config file.",
)
pod_args = parser.add_argument_group("TPU Arguments", "Arguments for options ran inside the TPU.")
pod_args.add_argument(
"--use_alpha",
action="store_true",
help="Whether to use `gcloud alpha` when running the TPU training script instead of `gcloud`.",
)
pod_args.add_argument(
"--command_file",
default=None,
help="The path to the file containing the commands to run on the pod on startup.",
)
pod_args.add_argument(
"--command",
action="append",
nargs="+",
help="A command to run on the pod. Can be passed multiple times.",
)
pod_args.add_argument(
"--install_accelerate",
action="store_true",
help="Whether to install accelerate on the pod. Defaults to False.",
)
pod_args.add_argument(
"--accelerate_version",
default="latest",
help="The version of accelerate to install on the pod. If not specified, will use the latest pypi version. Specify 'dev' to install from GitHub.",
)
pod_args.add_argument(
"--debug", action="store_true", help="If set, will print the command that would be run instead of running it."
)
if subparsers is not None:
parser.set_defaults(func=tpu_command_launcher)
return parser
def tpu_command_launcher(args):
defaults = None
# Get the default from the config file if it exists.
if args.config_file is not None or os.path.isfile(default_config_file):
defaults = load_config_from_file(args.config_file)
if not args.command_file and defaults.command_file is not None and not args.command:
args.command_file = defaults.command_file
if not args.command and defaults.commands is not None:
args.command = defaults.commands
if not args.tpu_name:
args.tpu_name = defaults.tpu_name
if not args.tpu_zone:
args.tpu_zone = defaults.tpu_zone
if args.accelerate_version == "dev":
args.accelerate_version = "git+https://github.com/huggingface/accelerate.git"
elif args.accelerate_version == "latest":
args.accelerate_version = "accelerate -U"
elif isinstance(parse(args.accelerate_version), Version):
args.accelerate_version = f"accelerate=={args.accelerate_version}"
if not args.command_file and not args.command:
raise ValueError("You must specify either a command file or a command to run on the pod.")
if args.command_file:
with open(args.command_file, "r") as f:
args.command = [f.read().splitlines()]
# To turn list of lists into list of strings
if isinstance(args.command[0], list):
args.command = [line for cmd in args.command for line in cmd]
# Default to the shared folder and install accelerate
new_cmd = ["cd /usr/share"]
if args.install_accelerate:
new_cmd += [f"pip install {args.accelerate_version}"]
new_cmd += args.command
args.command = "; ".join(new_cmd)
# Then send it to gcloud
# Eventually try to use google-api-core to do this instead of subprocess
cmd = ["gcloud"]
if args.use_alpha:
cmd += ["alpha"]
cmd += [
"compute",
"tpus",
"tpu-vm",
"ssh",
args.tpu_name,
"--zone",
args.tpu_zone,
"--command",
args.command,
"--worker",
"all",
]
if args.debug:
print(f"Running {' '.join(cmd)}")
return
subprocess.run(cmd)
print("Successfully setup pod.")
def main():
parser = tpu_command_parser()
args = parser.parse_args()
tpu_command_launcher(args)
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