icemelon9 commented on a change in pull request #4644: [Relay][AutoTVM] Relay op strategy URL: https://github.com/apache/incubator-tvm/pull/4644#discussion_r380301022
########## File path: topi/python/topi/arm_cpu/conv2d_alter_op.py ########## @@ -0,0 +1,171 @@ +# 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. +# pylint: disable=invalid-name,unused-variable,unused-argument,no-member +"""Conv2D alter op and legalize functions for arm cpu""" + +import logging + +import tvm +from tvm import relay +from tvm import autotvm + +from ..nn import conv2d_alter_layout +from ..util import get_const_tuple + + +logger = logging.getLogger('topi') + + +@conv2d_alter_layout.register(["arm_cpu"]) +def _alter_conv2d_layout(attrs, inputs, tinfos, out_type): + target = tvm.target.Target.current(allow_none=False) + dispatch_ctx = autotvm.task.DispatchContext.current + + _, outs = relay.backend.compile_engine.select_implement( + relay.op.get("nn.conv2d"), attrs, tinfos, out_type, target) + workload = autotvm.task.get_workload(outs) + if workload is None: + # The best implementation is not an AutoTVM template, + # we then assume it's not necessary to alter this op. + return None + cfg = dispatch_ctx.query(target, workload) + if cfg.is_fallback: # if is fallback, clear query cache and return None + autotvm.task.clear_fallback_cache(target, workload) Review comment: The dispatch context will cache the random assigned fallback cache. I think this line just clear the query cache. I just followed the original arm_cpu cov2d_layout implementation for this. ---------------------------------------------------------------- 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] With regards, Apache Git Services
