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Posted to commits@tvm.apache.org by GitBox <gi...@apache.org> on 2020/12/09 18:17:19 UTC

[GitHub] [tvm] comaniac commented on a change in pull request #7070: Add autoscheduler support to tvmc

comaniac commented on a change in pull request #7070:
URL: https://github.com/apache/tvm/pull/7070#discussion_r539522022



##########
File path: python/tvm/driver/tvmc/autoscheduler.py
##########
@@ -0,0 +1,212 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you 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.
+"""
+Provides support to auto-tuning networks using AutoScheduler.
+"""
+import logging
+
+from urllib.parse import urlparse
+
+from tvm import auto_scheduler
+from tvm.auto_scheduler.auto_schedule import HardwareParams
+
+from . import common, frontends
+from .common import add_tuning_options
+from .main import register_parser
+
+
+# pylint: disable=invalid-name
+logger = logging.getLogger("TVMC")
+
+
+@register_parser
+def add_autoscheduler_parser(subparsers):
+    """ Include parser for 'autoschedule' subcommand """
+    parser = subparsers.add_parser("autoschedule", help="auto-schedule a model")
+    parser.set_defaults(func=drive_autoschedule)
+    add_tuning_options(parser)
+
+    parser.add_argument(
+        "--cache-line-bytes",
+        default=64,
+        help="the size of cache line in bytes",
+    )
+    parser.add_argument(
+        "--num-cores",
+        default=4,
+        help="the number of device cores",
+    )
+    parser.add_argument(
+        "--vector-unit-bytes",
+        default=16,
+        help="the width of vector units in bytes",
+    )

Review comment:
       It would be better to use an argument group for all hardware parameters.

##########
File path: python/tvm/driver/tvmc/autoscheduler.py
##########
@@ -0,0 +1,212 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you 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.
+"""
+Provides support to auto-tuning networks using AutoScheduler.
+"""
+import logging
+
+from urllib.parse import urlparse
+
+from tvm import auto_scheduler
+from tvm.auto_scheduler.auto_schedule import HardwareParams
+
+from . import common, frontends
+from .common import add_tuning_options
+from .main import register_parser
+
+
+# pylint: disable=invalid-name
+logger = logging.getLogger("TVMC")
+
+
+@register_parser
+def add_autoscheduler_parser(subparsers):
+    """ Include parser for 'autoschedule' subcommand """
+    parser = subparsers.add_parser("autoschedule", help="auto-schedule a model")

Review comment:
       It might be confusing to have both `tune` and `autoschedule` subcommands. I would suggest either changing `tune` to `autotune` to be consistent with autoschedule`, or put auto-schedule as a mode in `tune` command.

##########
File path: python/tvm/driver/tvmc/autoscheduler.py
##########
@@ -0,0 +1,212 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you 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.
+"""
+Provides support to auto-tuning networks using AutoScheduler.
+"""
+import logging
+
+from urllib.parse import urlparse
+
+from tvm import auto_scheduler
+from tvm.auto_scheduler.auto_schedule import HardwareParams
+
+from . import common, frontends
+from .common import add_tuning_options
+from .main import register_parser
+
+
+# pylint: disable=invalid-name
+logger = logging.getLogger("TVMC")
+
+
+@register_parser
+def add_autoscheduler_parser(subparsers):
+    """ Include parser for 'autoschedule' subcommand """
+    parser = subparsers.add_parser("autoschedule", help="auto-schedule a model")
+    parser.set_defaults(func=drive_autoschedule)
+    add_tuning_options(parser)
+
+    parser.add_argument(
+        "--cache-line-bytes",
+        default=64,
+        help="the size of cache line in bytes",
+    )
+    parser.add_argument(
+        "--num-cores",
+        default=4,
+        help="the number of device cores",
+    )
+    parser.add_argument(
+        "--vector-unit-bytes",
+        default=16,
+        help="the width of vector units in bytes",
+    )
+    parser.add_argument(
+        "--model-format",
+        choices=frontends.get_frontend_names(),
+        help="specify input model format",
+    )
+
+
+def drive_autoschedule(args):
+    """Invoke auto-scheduling with command line arguments
+
+    Parameters
+    ----------
+    args: argparse.Namespace
+        Arguments from command line parser.
+    """
+
+    # extra arguments validation before importing the model, so that obvious errors
+    # are pointed in advance.
+    if args.rpc_tracker:
+        parsed_url = urlparse("//%s" % args.rpc_tracker)
+        rpc_hostname = parsed_url.hostname
+        rpc_port = parsed_url.port or 9090
+        logger.info("RPC tracker hostname: %s", rpc_hostname)
+        logger.info("RPC tracker port: %s", rpc_port)
+
+        if not args.rpc_key:
+            raise common.TVMCException(
+                "need to provide an RPC tracker key (--rpc-key) for remote tuning"
+            )
+
+    target = common.target_from_cli(args.target)
+    mod, params = frontends.load_model(args.FILE, args.model_format)
+
+    # min_repeat_ms should be:
+    # a. the value provided by the user, if any, or
+    # b. 0ms in case target is "cpu"; otherwise 1000ms
+    if args.min_repeat_ms is not None:
+        min_repeat_ms = args.min_repeat_ms
+    else:
+        min_repeat_ms = 0 if target.keys[0] == "cpu" else 1000
+        logger.debug("Default --min-repeat-ms for this target is %s", min_repeat_ms)
+
+    if args.rpc_tracker:
+
+        runner = auto_scheduler.RPCRunner(
+            key=args.rpc_key,
+            host=rpc_hostname,
+            port=rpc_port,
+            number=args.number,
+            repeat=args.repeat,
+            n_parallel=args.parallel,
+            timeout=args.timeout,
+            min_repeat_ms=min_repeat_ms,
+        )
+    else:
+        logger.info("starting localhost tuning")
+        runner = auto_scheduler.LocalRunner(
+            number=args.number,
+            repeat=args.repeat,
+            timeout=args.timeout,
+            min_repeat_ms=min_repeat_ms,
+        )
+
+    # Create the autoscheduler tuning options
+    tuning_options = auto_scheduler.TuningOptions(
+        num_measure_trials=args.trials,
+        measure_callbacks=[auto_scheduler.RecordToFile(args.output)],
+        runner=runner,
+        builder="local",
+        early_stopping=args.early_stopping,
+    )
+
+    # Specify hardware parameters
+    hardware_params = HardwareParams(
+        args.num_cores, args.vector_unit_bytes, args.cache_line_bytes, None, None, None, None, None
+    )
+
+    # Extract the tasks from the model
+    tasks, weights = get_tuning_tasks(
+        mod, params, target, target_host, args.desired_layout, hardware_params
+    )
+
+    # Schedule the tasks (i.e., produce a schedule for each task)
+    schedule_tasks(
+        tasks,
+        weights,
+        tuning_options,
+        args.tuning_records,
+    )
+
+
+def get_tuning_tasks(
+    mod, params, target, target_host=None, alter_layout=None, hardware_params=None
+):
+    """Get the tuning tasks for a given relay module.
+
+    Parameters
+    ----------
+    mod : tvm.relay.Module
+        The relay module from which to extract tuning tasks.
+    params : dict
+        The params for the relay module.
+    target : tvm.target.Target
+        The compilation target.
+    target_host : str, optional
+        The compilation target for the host.
+    alter_layout : str, optional
+        The layout to convert the graph to. Note, the convert layout
+        pass doesn't currently guarantee the whole of the graph will
+        be converted to the chosen layout.
+
+    Returns
+    -------
+    tasks : list of autotvm.Tasks
+        list of tasks to be tuned
+    weights : List[int]
+        the weight (i.e. the number of appearance) of extracted tasks
+    """
+    if alter_layout:
+        mod = common.convert_graph_layout(mod, alter_layout)
+
+    # Extract the tasks
+    tasks, task_weights = auto_scheduler.extract_tasks(
+        mod["main"], params, target=target, target_host=target_host, hardware_params=hardware_params
+    )
+
+    return tasks, task_weights
+
+
+def schedule_tasks(
+    tasks,
+    task_weights,
+    tuning_options,
+    tuning_records=None,
+):
+    """Generate the schedules for the different tasks (i.e., subgraphs) contained in the module.
+    Store the schedules in a json file that will be used later by the compiler.
+
+    Parameters
+    ----------
+    tasks : list
+        A list of autotvm.Tasks to tune.
+    task_weights : list
+        The weight (i.e. the number of appearance) of extracted tasks
+    tuning_records : str, optional
+        The json file used to preload the autoscheduler
+    tuning_options:
+        The options of tuning

Review comment:
       Wrong order.

##########
File path: python/tvm/driver/tvmc/autoscheduler.py
##########
@@ -0,0 +1,212 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you 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.
+"""
+Provides support to auto-tuning networks using AutoScheduler.
+"""
+import logging
+
+from urllib.parse import urlparse
+
+from tvm import auto_scheduler
+from tvm.auto_scheduler.auto_schedule import HardwareParams
+
+from . import common, frontends
+from .common import add_tuning_options
+from .main import register_parser
+
+
+# pylint: disable=invalid-name
+logger = logging.getLogger("TVMC")
+
+
+@register_parser
+def add_autoscheduler_parser(subparsers):
+    """ Include parser for 'autoschedule' subcommand """
+    parser = subparsers.add_parser("autoschedule", help="auto-schedule a model")
+    parser.set_defaults(func=drive_autoschedule)
+    add_tuning_options(parser)
+
+    parser.add_argument(
+        "--cache-line-bytes",
+        default=64,
+        help="the size of cache line in bytes",
+    )
+    parser.add_argument(
+        "--num-cores",
+        default=4,
+        help="the number of device cores",
+    )
+    parser.add_argument(
+        "--vector-unit-bytes",
+        default=16,
+        help="the width of vector units in bytes",
+    )
+    parser.add_argument(
+        "--model-format",
+        choices=frontends.get_frontend_names(),
+        help="specify input model format",
+    )
+
+
+def drive_autoschedule(args):
+    """Invoke auto-scheduling with command line arguments
+
+    Parameters
+    ----------
+    args: argparse.Namespace
+        Arguments from command line parser.
+    """
+
+    # extra arguments validation before importing the model, so that obvious errors
+    # are pointed in advance.
+    if args.rpc_tracker:
+        parsed_url = urlparse("//%s" % args.rpc_tracker)
+        rpc_hostname = parsed_url.hostname
+        rpc_port = parsed_url.port or 9090
+        logger.info("RPC tracker hostname: %s", rpc_hostname)
+        logger.info("RPC tracker port: %s", rpc_port)
+
+        if not args.rpc_key:
+            raise common.TVMCException(
+                "need to provide an RPC tracker key (--rpc-key) for remote tuning"
+            )
+
+    target = common.target_from_cli(args.target)
+    mod, params = frontends.load_model(args.FILE, args.model_format)
+
+    # min_repeat_ms should be:
+    # a. the value provided by the user, if any, or
+    # b. 0ms in case target is "cpu"; otherwise 1000ms
+    if args.min_repeat_ms is not None:
+        min_repeat_ms = args.min_repeat_ms
+    else:
+        min_repeat_ms = 0 if target.keys[0] == "cpu" else 1000
+        logger.debug("Default --min-repeat-ms for this target is %s", min_repeat_ms)
+
+    if args.rpc_tracker:
+
+        runner = auto_scheduler.RPCRunner(
+            key=args.rpc_key,
+            host=rpc_hostname,
+            port=rpc_port,
+            number=args.number,
+            repeat=args.repeat,
+            n_parallel=args.parallel,
+            timeout=args.timeout,
+            min_repeat_ms=min_repeat_ms,
+        )
+    else:
+        logger.info("starting localhost tuning")
+        runner = auto_scheduler.LocalRunner(
+            number=args.number,
+            repeat=args.repeat,
+            timeout=args.timeout,
+            min_repeat_ms=min_repeat_ms,
+        )
+
+    # Create the autoscheduler tuning options
+    tuning_options = auto_scheduler.TuningOptions(
+        num_measure_trials=args.trials,
+        measure_callbacks=[auto_scheduler.RecordToFile(args.output)],
+        runner=runner,
+        builder="local",
+        early_stopping=args.early_stopping,
+    )
+
+    # Specify hardware parameters
+    hardware_params = HardwareParams(
+        args.num_cores, args.vector_unit_bytes, args.cache_line_bytes, None, None, None, None, None
+    )
+
+    # Extract the tasks from the model
+    tasks, weights = get_tuning_tasks(
+        mod, params, target, target_host, args.desired_layout, hardware_params
+    )
+
+    # Schedule the tasks (i.e., produce a schedule for each task)
+    schedule_tasks(
+        tasks,
+        weights,
+        tuning_options,
+        args.tuning_records,
+    )
+
+
+def get_tuning_tasks(
+    mod, params, target, target_host=None, alter_layout=None, hardware_params=None
+):
+    """Get the tuning tasks for a given relay module.
+
+    Parameters
+    ----------
+    mod : tvm.relay.Module
+        The relay module from which to extract tuning tasks.
+    params : dict
+        The params for the relay module.
+    target : tvm.target.Target
+        The compilation target.
+    target_host : str, optional
+        The compilation target for the host.
+    alter_layout : str, optional
+        The layout to convert the graph to. Note, the convert layout
+        pass doesn't currently guarantee the whole of the graph will
+        be converted to the chosen layout.
+
+    Returns
+    -------
+    tasks : list of autotvm.Tasks
+        list of tasks to be tuned
+    weights : List[int]
+        the weight (i.e. the number of appearance) of extracted tasks
+    """
+    if alter_layout:
+        mod = common.convert_graph_layout(mod, alter_layout)
+
+    # Extract the tasks
+    tasks, task_weights = auto_scheduler.extract_tasks(
+        mod["main"], params, target=target, target_host=target_host, hardware_params=hardware_params
+    )
+
+    return tasks, task_weights
+
+
+def schedule_tasks(
+    tasks,
+    task_weights,
+    tuning_options,
+    tuning_records=None,
+):
+    """Generate the schedules for the different tasks (i.e., subgraphs) contained in the module.
+    Store the schedules in a json file that will be used later by the compiler.
+
+    Parameters
+    ----------
+    tasks : list
+        A list of autotvm.Tasks to tune.

Review comment:
       ```suggestion
           A list of auto_scheduler.SearchTask to tune.
   ```

##########
File path: python/tvm/driver/tvmc/common.py
##########
@@ -36,6 +36,93 @@ class TVMCException(Exception):
     """TVMC Exception"""
 
 
+def add_tuning_options(parser):

Review comment:
       This function name might be confusing, as "tuning option" usually refers to the options for measurement. Maybe `add_tuning_cmds` or something like this would be clearer.

##########
File path: python/tvm/driver/tvmc/autoscheduler.py
##########
@@ -0,0 +1,212 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you 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.
+"""
+Provides support to auto-tuning networks using AutoScheduler.
+"""
+import logging
+
+from urllib.parse import urlparse
+
+from tvm import auto_scheduler
+from tvm.auto_scheduler.auto_schedule import HardwareParams
+
+from . import common, frontends
+from .common import add_tuning_options
+from .main import register_parser
+
+
+# pylint: disable=invalid-name
+logger = logging.getLogger("TVMC")
+
+
+@register_parser
+def add_autoscheduler_parser(subparsers):
+    """ Include parser for 'autoschedule' subcommand """
+    parser = subparsers.add_parser("autoschedule", help="auto-schedule a model")
+    parser.set_defaults(func=drive_autoschedule)
+    add_tuning_options(parser)
+
+    parser.add_argument(
+        "--cache-line-bytes",
+        default=64,
+        help="the size of cache line in bytes",
+    )
+    parser.add_argument(
+        "--num-cores",
+        default=4,
+        help="the number of device cores",
+    )
+    parser.add_argument(
+        "--vector-unit-bytes",
+        default=16,
+        help="the width of vector units in bytes",
+    )
+    parser.add_argument(
+        "--model-format",
+        choices=frontends.get_frontend_names(),
+        help="specify input model format",
+    )
+
+
+def drive_autoschedule(args):
+    """Invoke auto-scheduling with command line arguments
+
+    Parameters
+    ----------
+    args: argparse.Namespace
+        Arguments from command line parser.
+    """
+
+    # extra arguments validation before importing the model, so that obvious errors
+    # are pointed in advance.
+    if args.rpc_tracker:
+        parsed_url = urlparse("//%s" % args.rpc_tracker)
+        rpc_hostname = parsed_url.hostname
+        rpc_port = parsed_url.port or 9090
+        logger.info("RPC tracker hostname: %s", rpc_hostname)
+        logger.info("RPC tracker port: %s", rpc_port)
+
+        if not args.rpc_key:
+            raise common.TVMCException(
+                "need to provide an RPC tracker key (--rpc-key) for remote tuning"
+            )
+
+    target = common.target_from_cli(args.target)
+    mod, params = frontends.load_model(args.FILE, args.model_format)
+
+    # min_repeat_ms should be:
+    # a. the value provided by the user, if any, or
+    # b. 0ms in case target is "cpu"; otherwise 1000ms
+    if args.min_repeat_ms is not None:
+        min_repeat_ms = args.min_repeat_ms
+    else:
+        min_repeat_ms = 0 if target.keys[0] == "cpu" else 1000
+        logger.debug("Default --min-repeat-ms for this target is %s", min_repeat_ms)

Review comment:
       This part is the same as `tune` and could be extracted as well.

##########
File path: python/tvm/driver/tvmc/autoscheduler.py
##########
@@ -0,0 +1,212 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you 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.
+"""
+Provides support to auto-tuning networks using AutoScheduler.
+"""
+import logging
+
+from urllib.parse import urlparse
+
+from tvm import auto_scheduler
+from tvm.auto_scheduler.auto_schedule import HardwareParams
+
+from . import common, frontends
+from .common import add_tuning_options
+from .main import register_parser
+
+
+# pylint: disable=invalid-name
+logger = logging.getLogger("TVMC")
+
+
+@register_parser
+def add_autoscheduler_parser(subparsers):
+    """ Include parser for 'autoschedule' subcommand """
+    parser = subparsers.add_parser("autoschedule", help="auto-schedule a model")
+    parser.set_defaults(func=drive_autoschedule)
+    add_tuning_options(parser)
+
+    parser.add_argument(
+        "--cache-line-bytes",
+        default=64,
+        help="the size of cache line in bytes",
+    )
+    parser.add_argument(
+        "--num-cores",
+        default=4,
+        help="the number of device cores",
+    )
+    parser.add_argument(
+        "--vector-unit-bytes",
+        default=16,
+        help="the width of vector units in bytes",
+    )
+    parser.add_argument(
+        "--model-format",
+        choices=frontends.get_frontend_names(),
+        help="specify input model format",
+    )
+
+
+def drive_autoschedule(args):
+    """Invoke auto-scheduling with command line arguments
+
+    Parameters
+    ----------
+    args: argparse.Namespace
+        Arguments from command line parser.
+    """
+
+    # extra arguments validation before importing the model, so that obvious errors
+    # are pointed in advance.
+    if args.rpc_tracker:
+        parsed_url = urlparse("//%s" % args.rpc_tracker)
+        rpc_hostname = parsed_url.hostname
+        rpc_port = parsed_url.port or 9090
+        logger.info("RPC tracker hostname: %s", rpc_hostname)
+        logger.info("RPC tracker port: %s", rpc_port)
+
+        if not args.rpc_key:
+            raise common.TVMCException(
+                "need to provide an RPC tracker key (--rpc-key) for remote tuning"
+            )
+
+    target = common.target_from_cli(args.target)
+    mod, params = frontends.load_model(args.FILE, args.model_format)
+
+    # min_repeat_ms should be:
+    # a. the value provided by the user, if any, or
+    # b. 0ms in case target is "cpu"; otherwise 1000ms
+    if args.min_repeat_ms is not None:
+        min_repeat_ms = args.min_repeat_ms
+    else:
+        min_repeat_ms = 0 if target.keys[0] == "cpu" else 1000
+        logger.debug("Default --min-repeat-ms for this target is %s", min_repeat_ms)
+
+    if args.rpc_tracker:
+

Review comment:
       Remove this line.

##########
File path: python/tvm/driver/tvmc/autoscheduler.py
##########
@@ -0,0 +1,212 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you 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.
+"""
+Provides support to auto-tuning networks using AutoScheduler.
+"""
+import logging
+
+from urllib.parse import urlparse
+
+from tvm import auto_scheduler
+from tvm.auto_scheduler.auto_schedule import HardwareParams
+
+from . import common, frontends
+from .common import add_tuning_options
+from .main import register_parser
+
+
+# pylint: disable=invalid-name
+logger = logging.getLogger("TVMC")
+
+
+@register_parser
+def add_autoscheduler_parser(subparsers):
+    """ Include parser for 'autoschedule' subcommand """
+    parser = subparsers.add_parser("autoschedule", help="auto-schedule a model")
+    parser.set_defaults(func=drive_autoschedule)
+    add_tuning_options(parser)
+
+    parser.add_argument(
+        "--cache-line-bytes",
+        default=64,
+        help="the size of cache line in bytes",
+    )
+    parser.add_argument(
+        "--num-cores",
+        default=4,
+        help="the number of device cores",
+    )
+    parser.add_argument(
+        "--vector-unit-bytes",
+        default=16,
+        help="the width of vector units in bytes",
+    )
+    parser.add_argument(
+        "--model-format",
+        choices=frontends.get_frontend_names(),
+        help="specify input model format",
+    )
+
+
+def drive_autoschedule(args):
+    """Invoke auto-scheduling with command line arguments
+
+    Parameters
+    ----------
+    args: argparse.Namespace
+        Arguments from command line parser.
+    """
+
+    # extra arguments validation before importing the model, so that obvious errors
+    # are pointed in advance.
+    if args.rpc_tracker:
+        parsed_url = urlparse("//%s" % args.rpc_tracker)
+        rpc_hostname = parsed_url.hostname
+        rpc_port = parsed_url.port or 9090
+        logger.info("RPC tracker hostname: %s", rpc_hostname)
+        logger.info("RPC tracker port: %s", rpc_port)
+
+        if not args.rpc_key:
+            raise common.TVMCException(
+                "need to provide an RPC tracker key (--rpc-key) for remote tuning"
+            )
+
+    target = common.target_from_cli(args.target)
+    mod, params = frontends.load_model(args.FILE, args.model_format)
+
+    # min_repeat_ms should be:
+    # a. the value provided by the user, if any, or
+    # b. 0ms in case target is "cpu"; otherwise 1000ms
+    if args.min_repeat_ms is not None:
+        min_repeat_ms = args.min_repeat_ms
+    else:
+        min_repeat_ms = 0 if target.keys[0] == "cpu" else 1000
+        logger.debug("Default --min-repeat-ms for this target is %s", min_repeat_ms)
+
+    if args.rpc_tracker:
+
+        runner = auto_scheduler.RPCRunner(
+            key=args.rpc_key,
+            host=rpc_hostname,
+            port=rpc_port,
+            number=args.number,
+            repeat=args.repeat,
+            n_parallel=args.parallel,
+            timeout=args.timeout,
+            min_repeat_ms=min_repeat_ms,
+        )
+    else:
+        logger.info("starting localhost tuning")
+        runner = auto_scheduler.LocalRunner(
+            number=args.number,
+            repeat=args.repeat,
+            timeout=args.timeout,
+            min_repeat_ms=min_repeat_ms,
+        )
+
+    # Create the autoscheduler tuning options
+    tuning_options = auto_scheduler.TuningOptions(
+        num_measure_trials=args.trials,
+        measure_callbacks=[auto_scheduler.RecordToFile(args.output)],
+        runner=runner,
+        builder="local",

Review comment:
       No need to provide the default value.

##########
File path: python/tvm/driver/tvmc/autoscheduler.py
##########
@@ -0,0 +1,212 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you 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.
+"""
+Provides support to auto-tuning networks using AutoScheduler.
+"""
+import logging
+
+from urllib.parse import urlparse
+
+from tvm import auto_scheduler
+from tvm.auto_scheduler.auto_schedule import HardwareParams
+
+from . import common, frontends
+from .common import add_tuning_options
+from .main import register_parser
+
+
+# pylint: disable=invalid-name
+logger = logging.getLogger("TVMC")
+
+
+@register_parser
+def add_autoscheduler_parser(subparsers):
+    """ Include parser for 'autoschedule' subcommand """
+    parser = subparsers.add_parser("autoschedule", help="auto-schedule a model")
+    parser.set_defaults(func=drive_autoschedule)
+    add_tuning_options(parser)
+
+    parser.add_argument(
+        "--cache-line-bytes",
+        default=64,
+        help="the size of cache line in bytes",
+    )
+    parser.add_argument(
+        "--num-cores",
+        default=4,
+        help="the number of device cores",
+    )
+    parser.add_argument(
+        "--vector-unit-bytes",
+        default=16,
+        help="the width of vector units in bytes",
+    )
+    parser.add_argument(
+        "--model-format",
+        choices=frontends.get_frontend_names(),
+        help="specify input model format",
+    )
+
+
+def drive_autoschedule(args):
+    """Invoke auto-scheduling with command line arguments
+
+    Parameters
+    ----------
+    args: argparse.Namespace
+        Arguments from command line parser.
+    """
+
+    # extra arguments validation before importing the model, so that obvious errors
+    # are pointed in advance.
+    if args.rpc_tracker:
+        parsed_url = urlparse("//%s" % args.rpc_tracker)
+        rpc_hostname = parsed_url.hostname
+        rpc_port = parsed_url.port or 9090
+        logger.info("RPC tracker hostname: %s", rpc_hostname)
+        logger.info("RPC tracker port: %s", rpc_port)
+
+        if not args.rpc_key:
+            raise common.TVMCException(
+                "need to provide an RPC tracker key (--rpc-key) for remote tuning"
+            )
+
+    target = common.target_from_cli(args.target)
+    mod, params = frontends.load_model(args.FILE, args.model_format)
+
+    # min_repeat_ms should be:
+    # a. the value provided by the user, if any, or
+    # b. 0ms in case target is "cpu"; otherwise 1000ms
+    if args.min_repeat_ms is not None:
+        min_repeat_ms = args.min_repeat_ms
+    else:
+        min_repeat_ms = 0 if target.keys[0] == "cpu" else 1000
+        logger.debug("Default --min-repeat-ms for this target is %s", min_repeat_ms)
+
+    if args.rpc_tracker:
+
+        runner = auto_scheduler.RPCRunner(
+            key=args.rpc_key,
+            host=rpc_hostname,
+            port=rpc_port,
+            number=args.number,
+            repeat=args.repeat,
+            n_parallel=args.parallel,
+            timeout=args.timeout,
+            min_repeat_ms=min_repeat_ms,
+        )
+    else:
+        logger.info("starting localhost tuning")
+        runner = auto_scheduler.LocalRunner(
+            number=args.number,
+            repeat=args.repeat,
+            timeout=args.timeout,
+            min_repeat_ms=min_repeat_ms,
+        )
+
+    # Create the autoscheduler tuning options
+    tuning_options = auto_scheduler.TuningOptions(
+        num_measure_trials=args.trials,
+        measure_callbacks=[auto_scheduler.RecordToFile(args.output)],
+        runner=runner,
+        builder="local",
+        early_stopping=args.early_stopping,
+    )
+
+    # Specify hardware parameters
+    hardware_params = HardwareParams(
+        args.num_cores, args.vector_unit_bytes, args.cache_line_bytes, None, None, None, None, None
+    )
+
+    # Extract the tasks from the model
+    tasks, weights = get_tuning_tasks(
+        mod, params, target, target_host, args.desired_layout, hardware_params
+    )
+
+    # Schedule the tasks (i.e., produce a schedule for each task)
+    schedule_tasks(
+        tasks,
+        weights,
+        tuning_options,
+        args.tuning_records,
+    )
+
+
+def get_tuning_tasks(

Review comment:
       This function looks unnecessary, and it's a bit weird to perform layout conversion in a function called "get_tuning_tasks".

##########
File path: tests/python/driver/tvmc/test_autoscheduler.py
##########
@@ -0,0 +1,101 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you 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.
+import json
+import pytest
+import os
+import tarfile
+
+from os import path
+
+from tvm import auto_scheduler
+from tvm.driver import tvmc
+
+
+def _get_tasks(model):
+    mod, params = tvmc.frontends.load_model(model)
+    tasks, weights = tvmc.autoscheduler.get_tuning_tasks(mod, params, "llvm")
+    return (tasks, weights)
+
+
+def _autoscheduler_test_helper(

Review comment:
       I'm not sure if we need to actually run auto_scheduler in this test. It seems to me that this helper is used by the following 4 test cases. However, TVMC should not be in charge of testing "tasks", "tuning records", "early stopping" and "no tuning records", especially those tests don't even use TVMC commands.
   

##########
File path: python/tvm/driver/tvmc/compiler.py
##########
@@ -82,6 +82,11 @@ def add_compile_parser(subparsers):
         help="path to an auto-tuning log file by AutoTVM. If not presented, "
         "the fallback/tophub configs will be used",
     )
+    parser.add_argument(
+        "--use-autoscheduler",
+        action="store_true",
+        help="use the autoscheduler to generate the compute schedules",
+    )

Review comment:
       You actually don't need users to tell you if auto_scheduler is used. Since AutoTVM and AutoScheduler have different log formats, you can simply use the following logic to know which one you should use:
   
   ```python
   def is_auto_scheduler_log(log_file):
       try:
           auto_scheduler.load_records(log_file)
       except Exception:
           return False
       return True
   ```




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