huajsj commented on a change in pull request #8702: URL: https://github.com/apache/tvm/pull/8702#discussion_r707834124
########## File path: python/tvm/contrib/pipeline_executor.py ########## @@ -0,0 +1,525 @@ +# 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. +"""Pipeline executor that executes a series of modules in a pipeline fashion.""" +import json +import tvm._ffi +from tvm import relay +from tvm.relay.transform import InferType +from tvm.contrib import graph_executor + + +def pipeline_executor_enabled(): + """Check if the pipeline executor is enabled. + + Return + ------- + enable: bool + Return whether pipeline executor is enabled. + """ + return tvm._ffi.get_global_func("tvm.pipeline_executor.create", allow_missing=True) is not None + + +def build(pipe_configs): + """Use pipe_config to build and return module list and module dependency configuration. + + Parameters + ---------- + pipe_configs: PipelineConfig + Configuration information for build. + + Returns + ------- + ret: PipelineExecutorFactoryModule + A class that wraps module list and module dependency configuration. + """ + mods = {} + mod_n_configs = pipe_configs.get_config() + config_len = len(mod_n_configs) + string_config = [{} for _ in range(config_len)] + for ir_mod, mod_config in mod_n_configs.items(): + mconf = mod_config["pipeline"].copy() + mod_idx = mconf["mod_idx"] - 1 + # Get mod device configuration. + dev = mod_config["dev"] + target = mod_config["target"] + build_func = relay.build + # Check whether there is a customized build function. + if "build" in mod_config and mod_config["build"]: + build_func = mod_config["build"] + + # Build. + mod = build_func( + ir_mod, + target, + params=mod_config["params"], + target_host=mod_config["target_host"], + mod_name=mod_config["mod_name"], + ) + + mconf["dev"] = "{},{}".format(dev.device_type, dev.device_id) + # Create pipeline configuration. + string_config[mod_idx] = mconf + # Set device. + mods[mod] = {"dev": dev} + + return PipelineExecutorFactoryModule(mods, string_config) + + +def create(pipe_executor_factory_module): + """Create a pipeline runtime executor. + + Parameters + ---------- + pipe_executor_factory_module : PipelineExecutorFactoryModule + It is wrapper class which include IRModule list and pipeline configuration. + + Returns + ------- + submodule : PipelineModule + Runtime pipeline module. + """ + + return PipelineModule(pipe_executor_factory_module) + + +class PipelineModule(object): Review comment: Here may need to keep PipelineModule for exporting function like setinput, getoutput etc that not included in this initial patch. removed create function. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
