merrymercy commented on a change in pull request #5962: URL: https://github.com/apache/incubator-tvm/pull/5962#discussion_r449741432
########## File path: python/tvm/ansor/serialization.py ########## @@ -0,0 +1,156 @@ +# 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. + +"""Serialization and other I/O support for tuning logs (measurement records)""" + +import numpy as np + +import tvm._ffi +from tvm.runtime import Object +from .measure import MeasureCallback, MeasureErrorNo +from . import _ffi_api + + +@tvm._ffi.register_object("ansor.LogToFile") +class LogToFile(MeasureCallback): + """ + A measurement callback that writes measurement records into a file. + + Parameters + ---------- + filename : str + File name for this callback to write log to. + """ + def __init__(self, filename="ansor_tuning.json"): + self.__init_handle_by_constructor__(_ffi_api.LogToFile, filename) + + +@tvm._ffi.register_object("ansor.LogReader") +class LogReader(Object): + """ + Reader of the json log file. + + Parameters + ---------- + filename : str = "ansor_tuning.json" + File name for this reader to load log from. + """ + def __init__(self, filename="ansor_tuning.json"): + self.__init_handle_by_constructor__(_ffi_api.LogReader, filename) + + def read_lines(self, max_lines=-1, skip_lines=0): + """ Read multiple lines from the log file. + + Parameters + ---------- + max_lines : int = -1 + The maximum number of lines. -1 means to read all lines. + skip_lines : int = 0 + Skip the first n lines. + + Returns + ------- + inputs : List[MeasureInput] + The MeasureInputs loaded from the log file. + results : List[MeasureResult] + The MeasureResults loaded from the log file. + """ + inputs, results = _ffi_api.LogReaderReadLines(self, max_lines, skip_lines) + return inputs, results + + def __iter__(self): + while True: + ret = _ffi_api.LogReaderReadNext(self) + if not ret: + break + yield ret[0], ret[1] # (input, result) + + +def load_from_file(filename): + """ + Load measurement records from a file. + + Parameters + ---------- + filename : str + File name to load log from. + + Returns + ------- + logs : List[MeasureInput, MeasureResult] + """ + return zip(*LogReader(filename).read_lines()) + + +def append_measure_records_to_file(filename, inputs, results): + """ + Aappend measure records to file. + + Parameters + ---------- + filename : str + File name to write log to. + inputs: List[MeasureInputs] + The target MeasureInputs to be written. + results: List[MeasureResults] + The target MeasureResults to be written. + """ + _ffi_api.AppendMeasureRecordsToFile(filename, inputs, results) + +def best_measure_pair_in_file(filename, workload_key=None, target=None): + """ Return the best measurement pair form a log file. This may return none results if + there is no legal measure pair with the specified workload_key/target found from the log file. + + Parameters + ---------- + filename : str + File name to load log from. + workload_key : Optional[str] = None + The workload key of the target compute declaration. Review comment: ```suggestion The workload key of the compute declaration. ``` ---------------------------------------------------------------- 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. For queries about this service, please contact Infrastructure at: [email protected]
