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Refine Fuse Optimize Ops (#16810)

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* fix bug of fuse optimize ops
revert-16650-refine_parallel_executor_3
chengduo 6 years ago committed by GitHub
parent 1f2afccf30
commit e9409665f7
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GPG Key ID: 4AEE18F83AFDEB23
5 changed files with 160 additions and 63 deletions
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2
paddle/fluid/framework/details/build_strategy.cc
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@ -101,8 +101,6 @@ class ParallelExecutorPassBuilder : public ir::PassBuilder {
"mode.";
strategy_.fuse_all_optimizer_ops_ = false;
} else {
VLOG(10) << "Add alloc_continuous_space_for_grad_pass";
AppendPass("alloc_continuous_space_for_grad_pass");
// NOTE: fuse_all_xx_ops will count the number of xx operator first,
// if the number is zero, fuse_all_reduce_ops will do nothing.
// Currently, only one type of optimization algorithm can be fused.

10
paddle/fluid/framework/details/fuse_adam_op_pass.cc
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@ -24,7 +24,7 @@ namespace details {
const std::string FuseAdamOpPass::GetOpType() const { return "adam"; }
const std::vector<std::string> FuseAdamOpPass::GetAuxiliaryVarNames() const {
return {"Param", "Moment1", "Moment2", "Beta1Pow", "Beta2Pow"};
return {"Moment1", "Moment2", "Beta1Pow", "Beta2Pow"};
}
void FuseAdamOpPass::FuseOptimizerOps(
@ -77,16 +77,16 @@ void FuseAdamOpPass::FuseAdamOps(
VLOG(10) << "Insert adam to graph ";
OpDesc adam_desc(adam_ops[0]->Op()->Block());
adam_desc.SetType("adam");
adam_desc.SetInput("Param", {fused_vars_name.at("Param")});
adam_desc.SetInput("Grad", {fused_vars_name.at("Grad")});
adam_desc.SetInput(kParam, {fused_vars_name.at(kParam)});
adam_desc.SetInput(kGrad, {fused_vars_name.at(kGrad)});
adam_desc.SetInput("Moment1", {fused_vars_name.at("Moment1")});
adam_desc.SetInput("Moment2", {fused_vars_name.at("Moment2")});
// TODO(zcd): The LearningRate, Beta1Pow, Beta2Pow should be equal.
adam_desc.SetInput("LearningRate", adam_ops[0]->Op()->Input("LearningRate"));
adam_desc.SetInput(kLearningRate, adam_ops[0]->Op()->Input(kLearningRate));
adam_desc.SetInput("Beta1Pow", adam_ops[0]->Op()->Input("Beta1Pow"));
adam_desc.SetInput("Beta2Pow", adam_ops[0]->Op()->Input("Beta2Pow"));
adam_desc.SetOutput("ParamOut", {fused_vars_name.at("Param")});
adam_desc.SetOutput("ParamOut", {fused_vars_name.at(kParam)});
adam_desc.SetOutput("Moment1Out", {fused_vars_name.at("Moment1")});
adam_desc.SetOutput("Moment2Out", {fused_vars_name.at("Moment2")});
adam_desc.SetAttr("beta1", beta1);

175
paddle/fluid/framework/details/fuse_optimizer_op_pass.cc
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@ -29,7 +29,9 @@ void FuseOptimizerOpPass::ApplyImpl(ir::Graph *graph) const {
auto &local_scopes = Get<const std::vector<Scope *>>(kLocalScopes);
const std::string fuse_op_type = GetOpType();
const std::vector<std::string> aux_var_names = GetAuxiliaryVarNames();
std::vector<std::string> aux_var_names = GetAuxiliaryVarNames();
aux_var_names.emplace_back(kParam);
aux_var_names.emplace_back(kGrad);
// Step 1: Get the specified op and auxiliary variables.
std::vector<ir::Node *> topo_nodes = ir::TopologySortOperations(result);
@ -61,7 +63,7 @@ void FuseOptimizerOpPass::ApplyImpl(ir::Graph *graph) const {
result.Set(kFusedVars, new FusedVars);
}
std::unordered_map<std::string, std::string> fused_vars_name;
fused_vars_name.reserve(aux_var_names.size() + 1);
fused_vars_name.reserve(aux_var_names.size());
auto &fused_var_set = result.Get<FusedVars>(kFusedVars);
const std::string prefix(kFusedVarNamePrefix);
// NOTE: the fused_var_name should be unique.
@ -75,39 +77,103 @@ void FuseOptimizerOpPass::ApplyImpl(ir::Graph *graph) const {
}
// Step 3: Get the fused Gradient's name
auto &params_grads = result.Get<ParamsAndGrads>(kParamsAndGrads);
if (!result.Has(kFusedGrads)) {
PADDLE_THROW(
"The alloc_continuous_space_for_grad_pass should be called before this "
"pass.");
}
auto &fused_grad = result.Get<FusedGrads>(kFusedGrads);
auto &fused_vars = result.Get<FusedVars>(kFusedVars);
auto iter = std::find(fused_vars.begin(), fused_vars.end(), fused_grad);
PADDLE_ENFORCE(iter != fused_vars.end(), "Not find the fused_grad.");
fused_vars_name.emplace("Grad", fused_grad);
// Step 4: Sort the parameters and auxiliary variables according
// to parameters' name to make variables' name correspond correctly.
PADDLE_ENFORCE(result.Has(kParamsAndGrads), "Does't find kParamsAndGrads.");
PADDLE_ENFORCE_EQ(params_grads.size(), aux_var_set.begin()->second.size(),
"The size of params_grads and aux_var_set are not equal.");
SortParametersAndAuxVars(params_grads, &aux_var_set, &opt_ops);
// Step 5: Alloc continuous space for Parameters and AuxiliaryVar(e.g.
bool grad_fused = false;
if (result.Has(kParamsAndGrads)) {
auto &params_grads = result.Get<ParamsAndGrads>(kParamsAndGrads);
PADDLE_ENFORCE_EQ(
params_grads.size(), aux_var_set.at(kGrad).size(),
"The number of gradients and optimizer ops is not equal.");
std::unordered_set<std::string> opt_grad_set(aux_var_set.at(kGrad).begin(),
aux_var_set.at(kGrad).end());
size_t same_grad_num = 0;
for (auto &p_g : params_grads) {
if (opt_grad_set.count(p_g.second)) {
++same_grad_num;
}
}
// NOTE(zcd): the gradient of kParamsAndGrads may be different with the
// kGrad.
if (same_grad_num == aux_var_set.at(kGrad).size()) {
if (!result.Has(kFusedGrads)) {
PADDLE_THROW(
"The alloc_continuous_space_for_grad_pass should be called before "
"this pass.");
}
auto &fused_grad = result.Get<FusedGrads>(kFusedGrads);
auto &fused_vars = result.Get<FusedVars>(kFusedVars);
auto iter = std::find(fused_vars.begin(), fused_vars.end(), fused_grad);
PADDLE_ENFORCE(iter != fused_vars.end(), "Not find the fused_grad.");
fused_vars_name[kGrad] = fused_grad;
// Sort the parameters and auxiliary variables according
// to parameters' name to make variables' name correspond correctly.
SortParametersAndAuxVars(params_grads, &aux_var_set, &opt_ops);
grad_fused = true;
}
}
// Step 4: Alloc continuous space for Parameters and AuxiliaryVar(e.g.
// Moment1, Moment2, Beta1Pow, Beta2Pow) of all the optimizer ops separately.
aux_var_names.pop_back();
if (!grad_fused) {
InitFusedGradsAndAllocSpaceForGrads(
places, local_scopes, aux_var_set.at(kParam), aux_var_set.at(kGrad),
fused_vars_name.at(kGrad), &result);
}
InitFusedVarsAndAllocSpaceForVars(places, local_scopes, aux_var_names,
aux_var_set, fused_vars_name);
// Step 6: Fuse optimizer Ops and Scale Ops
// Step 5: Fuse optimizer Ops and Scale Ops
FuseOptimizerOps(aux_var_set, fused_vars_name, opt_ops, &result);
// Step 7: Remove optimizer Ops
// Step 6: Remove optimizer Ops
for (auto &opt_op : opt_ops) {
graph->RemoveNode(opt_op);
}
}
void FuseOptimizerOpPass::InitFusedGradsAndAllocSpaceForGrads(
const std::vector<platform::Place> &places,
const std::vector<Scope *> &local_scopes,
const std::vector<std::string> &params,
const std::vector<std::string> &grads, const std::string &fused_grad_name,
ir::Graph *result) const {
// Get Var Nodes
std::unordered_map<std::string, ir::Node *> vars;
for (ir::Node *node : result->Nodes()) {
if (node->IsVar() && node->Var()) {
// Note: The graph may have the same name node. For example, parameter
// is the input of operator and it also is the output of optimizer;
vars.emplace(node->Var()->Name(), node);
}
}
// Init Grads
for (auto it = local_scopes.rbegin(); it != local_scopes.rend(); ++it) {
auto &scope = *it;
VLOG(10) << "Init " << fused_grad_name;
PADDLE_ENFORCE(scope->FindVar(fused_grad_name) == nullptr,
"%s has existed in scope.", fused_grad_name);
scope->Var(fused_grad_name)->GetMutable<LoDTensor>();
for (auto &grad_var_name : grads) {
auto iter = vars.find(grad_var_name);
PADDLE_ENFORCE(iter != vars.end());
PADDLE_ENFORCE_NOT_NULL(iter->second->Var());
PADDLE_ENFORCE_EQ(iter->second->Var()->GetType(),
proto::VarType::LOD_TENSOR);
scope->Var(grad_var_name)->GetMutable<LoDTensor>();
}
}
// Define Ops
ProgramDesc program_desc;
auto *global_block = program_desc.MutableBlock(0);
AppendAllocContinuousSpace(params, grads, fused_grad_name, global_block,
false, false);
// Run Ops
RunInitOps(places, local_scopes, *global_block);
}
void FuseOptimizerOpPass::InitFusedVarsAndAllocSpaceForVars(
const std::vector<platform::Place> &places,
const std::vector<Scope *> &local_scopes,
@ -115,37 +181,49 @@ void FuseOptimizerOpPass::InitFusedVarsAndAllocSpaceForVars(
const std::unordered_map<std::string, std::vector<std::string>>
&aux_var_set,
const std::unordered_map<std::string, std::string> &fused_vars_name) const {
VLOG(10) << "Init FusedVars.";
// Alloc parameters and auxiliary vars in the respective scope.
size_t idx = local_scopes.size();
for (auto iter = local_scopes.rbegin(); iter != local_scopes.rend();
++iter, --idx) {
auto &scope = *iter;
for (auto &var_name : aux_var_names) {
auto fused_var_name = fused_vars_name.at(var_name);
VLOG(10) << "Init " << fused_var_name;
PADDLE_ENFORCE(scope->FindVar(fused_var_name) == nullptr,
"%s has exist in scope[%d]", fused_var_name, idx);
scope->Var(fused_var_name)->GetMutable<LoDTensor>();
}
// Init Vars
for (auto &var_name : aux_var_names) {
auto &fused_var_name = fused_vars_name.at(var_name);
InitVars(local_scopes, fused_var_name);
}
// Define Ops
ProgramDesc program_desc;
auto *global_block = program_desc.MutableBlock(0);
for (auto &var_name : aux_var_names) {
AppendAllocContinuousSpace(aux_var_set.at(var_name),
fused_vars_name.at(var_name), true,
global_block);
AppendAllocContinuousSpace(
aux_var_set.at(var_name), aux_var_set.at(var_name),
fused_vars_name.at(var_name), global_block, true);
}
// Run Ops
RunInitOps(places, local_scopes, *global_block);
}
void FuseOptimizerOpPass::RunInitOps(const std::vector<platform::Place> &places,
const std::vector<Scope *> &local_scopes,
const BlockDesc &global_block) const {
for (size_t i = 0; i < local_scopes.size(); ++i) {
for (auto &op_desc : global_block->AllOps()) {
for (auto &op_desc : global_block.AllOps()) {
auto op = OpRegistry::CreateOp(*op_desc);
op->Run(*local_scopes[i], places[i]);
}
}
}
void FuseOptimizerOpPass::InitVars(const std::vector<Scope *> &local_scopes,
const std::string &fused_var_name) const {
VLOG(10) << "Init FusedVars.";
// Alloc parameters and auxiliary vars in the respective scope.
size_t idx = local_scopes.size();
for (auto iter = local_scopes.rbegin(); iter != local_scopes.rend();
++iter, --idx) {
auto &scope = *iter;
VLOG(10) << "Init " << fused_var_name;
PADDLE_ENFORCE(scope->FindVar(fused_var_name) == nullptr,
"%s has exist in scope[%d]", fused_var_name, idx);
scope->Var(fused_var_name)->GetMutable<LoDTensor>();
}
}
void FuseOptimizerOpPass::SortParametersAndAuxVars(
const std::vector<std::pair<std::string, std::string>> &params_grads,
std::unordered_map<std::string, std::vector<std::string>> *aux_vars_set,
@ -203,15 +281,16 @@ void FuseOptimizerOpPass::GetSpecifiedOpsAndVars(
}
void FuseOptimizerOpPass::AppendAllocContinuousSpace(
const std::vector<std::string> &args, const std::string &out_arg,
bool copy_data, BlockDesc *global_block) const {
const std::vector<std::string> &in_args,
const std::vector<std::string> &out_args, const std::string &fused_out_arg,
BlockDesc *global_block, bool copy_data, bool check_name) const {
auto op_desc = global_block->AppendOp();
op_desc->SetType("alloc_continuous_space");
op_desc->SetInput("Input", args);
op_desc->SetOutput("Output", args);
op_desc->SetOutput("FusedOutput", {out_arg});
op_desc->SetInput("Input", in_args);
op_desc->SetOutput("Output", out_args);
op_desc->SetOutput("FusedOutput", {fused_out_arg});
op_desc->SetAttr("copy_data", copy_data);
op_desc->SetAttr("check_name", true);
op_desc->SetAttr("check_name", check_name);
}
void FuseOptimizerOpPass::InserInputAndOutputForOptOps(

26
paddle/fluid/framework/details/fuse_optimizer_op_pass.h
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@ -27,6 +27,10 @@ namespace paddle {
namespace framework {
namespace details {
constexpr char kGrad[] = "Grad";
constexpr char kParam[] = "Param";
constexpr char kLearningRate[] = "LearningRate";
class FuseOptimizerOpPass : public ir::Pass {
protected:
void ApplyImpl(ir::Graph *graph) const override;
@ -56,9 +60,18 @@ class FuseOptimizerOpPass : public ir::Pass {
std::unordered_map<std::string, std::vector<std::string>> *aux_args_name)
const;
void AppendAllocContinuousSpace(const std::vector<std::string> &args,
const std::string &out_arg, bool copy_data,
BlockDesc *global_block) const;
void AppendAllocContinuousSpace(const std::vector<std::string> &in_args,
const std::vector<std::string> &out_args,
const std::string &fused_out_arg,
BlockDesc *global_block, bool copy_data,
bool check_name = true) const;
void InitFusedGradsAndAllocSpaceForGrads(
const std::vector<platform::Place> &places,
const std::vector<Scope *> &local_scopes,
const std::vector<std::string> &params,
const std::vector<std::string> &grads, const std::string &fused_grad_name,
ir::Graph *result) const;
void InitFusedVarsAndAllocSpaceForVars(
const std::vector<platform::Place> &places,
@ -68,6 +81,13 @@ class FuseOptimizerOpPass : public ir::Pass {
&aux_var_set,
const std::unordered_map<std::string, std::string> &fused_vars_name)
const;
void RunInitOps(const std::vector<platform::Place> &places,
const std::vector<Scope *> &local_scopes,
const BlockDesc &global_block) const;
void InitVars(const std::vector<Scope *> &local_scopes,
const std::string &fused_var_name) const;
};
} // namespace details

10
paddle/fluid/framework/details/fuse_sgd_op_pass.cc
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@ -24,7 +24,7 @@ namespace details {
const std::string FuseSgdOpPass::GetOpType() const { return "sgd"; }
const std::vector<std::string> FuseSgdOpPass::GetAuxiliaryVarNames() const {
return {"Param"};
return {};
}
void FuseSgdOpPass::FuseOptimizerOps(
@ -50,12 +50,12 @@ void FuseSgdOpPass::FuseSgdOps(
// Add fused scale
OpDesc Sgd_desc(sgd_ops[0]->Op()->Block());
Sgd_desc.SetType("sgd");
Sgd_desc.SetInput("Param", {fused_vars_name.at("Param")});
Sgd_desc.SetInput("Grad", {fused_vars_name.at("Grad")});
Sgd_desc.SetOutput("ParamOut", {fused_vars_name.at("Param")});
Sgd_desc.SetInput(kParam, {fused_vars_name.at(kParam)});
Sgd_desc.SetInput(kGrad, {fused_vars_name.at(kGrad)});
Sgd_desc.SetOutput("ParamOut", {fused_vars_name.at(kParam)});
// TODO(zcd): The LearningRate, Beta1Pow, Beta2Pow should be equal.
Sgd_desc.SetInput("LearningRate", sgd_ops[0]->Op()->Input("LearningRate"));
Sgd_desc.SetInput(kLearningRate, sgd_ops[0]->Op()->Input(kLearningRate));
// NOTE: multi_devices_pass requires that every op should have a role.
Sgd_desc.SetAttr(OpProtoAndCheckerMaker::OpRoleAttrName(), op_role);

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