mikepapadim commented on a change in pull request #8775: URL: https://github.com/apache/tvm/pull/8775#discussion_r691167727
########## File path: src/relay/backend/compile_engine.cc ########## @@ -1,338 +0,0 @@ -/* - * 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 relay/backend/compile_engine.cc - * \brief Internal compialtion engine. - */ -#include "compile_engine.h" - -#include <tvm/driver/driver_api.h> -#include <tvm/ir/type_functor.h> -#include <tvm/relay/analysis.h> -#include <tvm/relay/attrs/device_copy.h> -#include <tvm/relay/expr.h> -#include <tvm/relay/expr_functor.h> -#include <tvm/relay/op.h> -#include <tvm/relay/op_attr_types.h> -#include <tvm/runtime/registry.h> -#include <tvm/te/operation.h> -#include <tvm/te/schedule.h> -#include <tvm/te/schedule_pass.h> -#include <tvm/topi/tags.h> - -#include <functional> -#include <limits> -#include <mutex> -#include <unordered_map> -#include <utility> -#include <vector> - -#include "../../runtime/meta_data.h" -#include "../transforms/pass_utils.h" -#include "te_compiler_cache.h" -#include "utils.h" - -namespace tvm { -namespace relay { - -TVM_REGISTER_OBJECT_TYPE(CompileEngineNode); - -class CompileEngineImpl : public CompileEngineNode { - public: - // Lower the function. - CachedFunc Lower(const CCacheKey& key, std::function<String(String)> mangle_fn) { - return LowerInternal(key, mangle_fn)->cached_func; - } - - CachedFunc Lower(const CCacheKey& key, const String mod_name) { - auto mangle_fn = [mod_name](String name) { return runtime::get_name_mangled(mod_name, name); }; - - return Lower(key, mangle_fn); - } - - // For now, build one module per function. - PackedFunc JIT(const CCacheKey& key) final { - auto mangle_fn = [](String name) { return name; }; - CCacheValue value = LowerInternal(key, mangle_fn); - if (value->packed_func != nullptr) return value->packed_func; - auto m = build(value->cached_func->funcs, key->target, Target(nullptr)); - value->packed_func = m.GetFunction(value->cached_func->prim_fn_var->name_hint); - return value->packed_func; - } - - CachedFunc LowerShapeFunc(const CCacheKey& key) final { - return LowerShapeFuncInternal(key)->cached_func; - } - - Array<tvm::runtime::Module> LowerExternalFunctions() { - Array<tvm::runtime::Module> ret; - std::unordered_map<std::string, std::string> cached_symbol; - std::vector<CCacheKey> cached_ext_funcs; - for (const auto& it : cache_) { - auto src_func = it.first->source_func; - ICHECK(src_func.defined()); - - if (src_func->GetAttr<String>(attr::kCompiler).defined()) { - auto code_gen = src_func->GetAttr<String>(attr::kCompiler); - ICHECK(code_gen.defined()) << "No external codegen is set"; - std::string code_gen_name = code_gen.value(); - cached_ext_funcs.push_back(it.first); - - auto symbol_name = src_func->GetAttr<String>(tvm::attr::kGlobalSymbol); - ICHECK(symbol_name.defined()) << "No external symbol is set for:\n" - << AsText(src_func, false) << "\n" - << "Functions with external codegen must have the " - << tvm::attr::kGlobalSymbol << " attr set."; - - std::string sn = symbol_name.value(); - if (!cached_symbol.count(sn)) { - cached_symbol[sn] = code_gen_name; - } else { - ICHECK_NE(cached_symbol[sn], code_gen_name) - << "Found duplicated symbol: " << sn << " for: " << code_gen_name; - } - - std::string ext_name = "relay.ext." + code_gen_name; - auto pf = tvm::runtime::Registry::Get(ext_name); - ICHECK(pf) << "Failed to find the codegen tool for " << ext_name << "\n"; - // No need to keep compiler attribute at this point, functions have been - // extracted for specific codegen. - src_func = WithAttr(std::move(src_func), attr::kCompiler, NullValue<ObjectRef>()); - runtime::Module ext_mod = (*pf)(src_func); - - // todo(@zhiics, @jroesch): Should this be a user visible error? - ICHECK(ext_mod.defined()) << "No external library was generated for " << ext_name - << "even though it was requested" - "by the annotated function " - << PrettyPrint(src_func); - - ret.push_back(ext_mod); - } - } - - // No need to cache external functions as we collected them all to create - // external runtime modules. - for (const auto& it : cached_ext_funcs) { - cache_.erase(it); - } - return ret; - } - - void Clear() final { cache_.clear(); } - - // List all items in the cache. - Array<ObjectRef> ListItems() { - std::lock_guard<std::mutex> lock(mutex_); - Array<ObjectRef> items; - for (auto& kv : cache_) { - items.push_back(kv.first); - items.push_back(kv.second); - } - return items; - } - - // List all items in the shape_func_cache. - Array<ObjectRef> ListShapeFuncItems() { - std::lock_guard<std::mutex> lock(mutex_); - Array<ObjectRef> items; - for (auto& kv : shape_func_cache_) { - items.push_back(kv.first); - items.push_back(kv.second); - } - return items; - } - - /*! - * \brief Get the cache key of the function that is being lowered currently - * \return the cache key - */ - CCacheKey GetCurrentCCacheKey() { return cur_ccache_key_; } - - private: - // implement lowered func - CCacheValue LowerInternal(const CCacheKey& key, std::function<String(String)> mangle_fn) { - std::lock_guard<std::mutex> lock(mutex_); - CCacheValue value; - auto it = cache_.find(key); - if (it != cache_.end()) { - it->second->use_count += 1; - if (it->second->cached_func.defined()) return it->second; - value = it->second; - } else { - value = CCacheValue(make_object<CCacheValueNode>()); - value->use_count = 0; - if (!backend::IsCompileEngineCacheDisabled()) { - cache_[key] = value; - } - } - cur_ccache_key_ = key; - - // No need to lower external functions for now. We will invoke the external - // codegen tool once and lower all functions together. - if (key->source_func->GetAttr<String>(attr::kCompiler).defined()) { - auto ir_module = IRModule(); - const auto name_node = key->source_func->GetAttr<String>(tvm::attr::kGlobalSymbol); - ICHECK(name_node.defined()) << "External function has not been attached a name yet."; - auto func_name = std::string(name_node.value()); - auto target = Target("ext_dev"); - auto global_var = GlobalVar(func_name); - global_var->checked_type_ = key->source_func->checked_type(); - ir_module->Add(global_var, key->source_func); - value->cached_func = CachedFunc(target, global_var, {}, {}, te::Schedule(), {}, ir_module); - return value; - } - - // Enforce use the target. - With<Target> target_scope(key->target); - - ICHECK(!value->cached_func.defined()); - auto cfunc = PrimFuncFor(key->source_func, key->target, [&](std::string name) { - return GetUniqueName(mangle_fn(name), &name_map_); - }); - - // Skip lowering for device copy node. - const Expr body = (key->source_func)->body; - if (const CallNode* call_node = body.as<CallNode>()) { - if (call_node->attrs.as<DeviceCopyAttrs>()) { - value->cached_func = cfunc; - return value; - } - } - - // NOTE: array will copy on write. - Array<te::Tensor> all_args = Array<te::Tensor>(cfunc->inputs); - for (te::Tensor arg : cfunc->outputs) { - all_args.push_back(arg); - } - // lower the function - std::unordered_map<te::Tensor, tir::Buffer> binds; - auto func_name = cfunc->prim_fn_var->name_hint; - cfunc->funcs->Update(tvm::LowerSchedule(cfunc->schedule, all_args, func_name, binds)); - value->cached_func = cfunc; - - return value; - } - - // implement lowered shape func - CCacheValue LowerShapeFuncInternal(const CCacheKey& key) { - std::lock_guard<std::mutex> lock(mutex_); - CCacheValue value; - auto it = shape_func_cache_.find(key); - if (it != shape_func_cache_.end()) { - it->second->use_count += 1; - if (it->second->cached_func.defined()) return it->second; - value = it->second; - } else { - value = CCacheValue(make_object<CCacheValueNode>()); - value->use_count = 0; - shape_func_cache_[key] = value; - } - // Enforce use the target. - With<Target> target_scope(key->target); - - ICHECK(!value->cached_func.defined()); - using tvm::transform::PassContext; - With<PassContext> fresh_pass_ctx_scope(PassContext::Create()); - - auto cached_func = ShapeFuncFor(key->source_func, key->target, [&](std::string name) { - return GetUniqueName(name, &name_map_); - }); - - value->cached_func = cached_func; - return value; - } - - /*! \brief compiler cache lock*/ - std::mutex mutex_; - /*! \brief internal name map to get an unique name */ - std::unordered_map<std::string, int> name_map_; - /*! \brief internal compiler cache */ - std::unordered_map<CCacheKey, CCacheValue> cache_; - /*! \brief internal compiler cache for shape funcs */ - std::unordered_map<CCacheKey, CCacheValue> shape_func_cache_; - /*! \brief the cache key of the function that is being lowered currently*/ - CCacheKey cur_ccache_key_; -}; - -/*! \brief The global compile engine */ -CompileEngine& CompileEngine::Global() { - // intentionally allocate raw pointer to avoid - // free during destructuion. - static CompileEngine* inst = new CompileEngine(make_object<CompileEngineImpl>()); - return *inst; -} - -TVM_REGISTER_PASS_CONFIG_OPTION("relay.backend.use_auto_scheduler", Bool); -TVM_REGISTER_PASS_CONFIG_OPTION("relay.backend.disable_compile_engine_cache", Bool); - -TVM_REGISTER_GLOBAL("relay.backend._make_LoweredOutput") - .set_body_typed([](tvm::Array<te::Tensor> outputs, OpImplementation impl) { - return LoweredOutput(outputs, impl); - }); - -TVM_REGISTER_GLOBAL("relay.backend._make_CCacheKey") - .set_body_typed([](Function source_func, Target target) { - return CCacheKey(source_func, target); - }); - -TVM_REGISTER_GLOBAL("relay.backend._CompileEngineGlobal").set_body_typed([]() { - return CompileEngine::Global(); -}); - -TVM_REGISTER_GLOBAL("relay.backend._CompileEngineClear").set_body_typed([](CompileEngine self) { - self->Clear(); -}); - -TVM_REGISTER_GLOBAL("relay.backend._CompileEngineLower") - .set_body_typed([](CompileEngine self, CCacheKey key, const String mod_name) { - return self->Lower(key, mod_name); - }); - -TVM_REGISTER_GLOBAL("relay.backend._CompileEngineLowerShapeFunc") - .set_body_typed([](CompileEngine self, CCacheKey key) { return self->LowerShapeFunc(key); }); - -TVM_REGISTER_GLOBAL("relay.backend._CompileLowerExternalFunctions") - .set_body_typed([](CompileEngine self) { return self->LowerExternalFunctions(); }); - -TVM_REGISTER_GLOBAL("relay.backend._CompileEngineJIT") - .set_body_typed([](CompileEngine self, CCacheKey key) { return self->JIT(key); }); - -TVM_REGISTER_GLOBAL("relay.backend._CompileEngineListItems").set_body_typed([](CompileEngine self) { - CompileEngineImpl* ptr = dynamic_cast<CompileEngineImpl*>(self.operator->()); - ICHECK(ptr != nullptr); - return ptr->ListItems(); -}); - -TVM_REGISTER_GLOBAL("relay.backend._CompileEngineListShapeFuncItems") - .set_body_typed([](CompileEngine self) { - CompileEngineImpl* ptr = dynamic_cast<CompileEngineImpl*>(self.operator->()); - ICHECK(ptr != nullptr); - return ptr->ListShapeFuncItems(); - }); - -TVM_REGISTER_GLOBAL("relay.backend._CompileEngineGetCurrentCCacheKey") - .set_body_typed([](CompileEngine self) { - CompileEngineImpl* ptr = dynamic_cast<CompileEngineImpl*>(self.operator->()); - ICHECK(ptr != nullptr); - return ptr->GetCurrentCCacheKey(); - }); Review comment: I checked locally, and only testing is failing. -- This is an automated message from the Apache Git Service. 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