mbs-octoml commented on a change in pull request #9313: URL: https://github.com/apache/tvm/pull/9313#discussion_r737901215
########## File path: src/target/compilation_config.cc ########## @@ -0,0 +1,219 @@ +/* + * 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. + */ + +/*! + * \file tvm/target/compilation_config.cc + * \brief Implementation of \p CompilationConfig for collecting \p Targets. + */ + +#include <tvm/runtime/device_api.h> +#include <tvm/target/compilation_config.h> + +namespace tvm { + +TVM_REGISTER_NODE_TYPE(CompilationConfigNode); + +void CompilationConfigNode::VisitAttrs(AttrVisitor* v) { + v->Visit("legacy_target_map", &legacy_target_map); + v->Visit("host_target", &host_target); + v->Visit("primitive_targets", &primitive_targets); + v->Visit("default_primitive_se_scope", &default_primitive_se_scope); + v->Visit("host_se_scope", &host_se_scope); + v->Visit("optional_homogenous_target", &optional_homogeneous_target); + // NOTE: The se_scope_cache_ is not accessible via FFI. +} + +SEScope CompilationConfigNode::CanonicalSEScope(const SEScope& se_scope) const { + if (se_scope->target().defined()) { + return se_scope_cache_.Unique(se_scope); + } + DLDeviceType device_type = se_scope->device_type(); + // TODO(mbs): Proper diagnostics. + CHECK(device_type != kInvalidDeviceType) + << "SEScope annotations must include at least a device_type"; + Target target = FindPrimitiveTargetOrFail(se_scope->device_type()); + return se_scope_cache_.Unique( + SEScope(device_type, se_scope->virtual_device_id(), target, se_scope->memory_scope())); +} + +/*! + * \brief Returns the default \p SEScope for primitives and the \p SEScope for the host + * given vector of available \p targets. If necessary, add new \p Targets to \p targets + * to match the required devices. + */ +void CompilationConfigNode::EstablishDefaultSEScopes(const transform::PassContext& pass_ctx) { + // + // Gather the hints as to what our default device type for primitives should be. + // + DLDeviceType default_primitive_device_type; + Optional<Integer> opt_fallback_dev = pass_ctx->GetConfig<Integer>("relay.fallback_device_type"); + if (opt_fallback_dev) { + const int64_t v = opt_fallback_dev.value()->value; + if (v <= 0) { + LOG(FATAL) + << "The 'relay.fallback_device_type' pass attribute is set to an invalid device type " + << v; + default_primitive_device_type = kDLCPU; + } else { + default_primitive_device_type = static_cast<DLDeviceType>(v); + LOG(INFO) << "Using the 'relay.fallback_device_type' pass attribute " + << default_primitive_device_type + << " as the default device type for all primitive operations"; + } + } else if (primitive_targets.size() == 1) { + // In the homogeneous case there's no free choice. + default_primitive_device_type = Review comment: already done :-)) -- 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]
