Merge branch 'develop' into feature/is_in_gpu

.pre-commit-config.yaml

@@ -21,10 +21,10 @@
     sha: 28c0ea8a67a3e2dbbf4822ef44e85b63a0080a29
     hooks:
     -   id: clang-formater
--   repo: https://github.com/dnephin/pre-commit-golang
-    sha: e4693a4c282b4fc878eda172a929f7a6508e7d16
+-   repo: https://github.com/PaddlePaddle/pre-commit-golang
+    sha: 16398aeccf263adaf53b2495eed0406347d76281
     hooks:
       -   id: go-fmt
-          files: (.*\.go)
-      -   id: go-lint
-          files: (.*\.go)
+          types: [go]
+      -   id: gometalinter
+          types: [go]

.travis.yml

@@ -41,6 +41,8 @@ before_install:
   - pip install rarfile
   - curl https://glide.sh/get | bash
   - eval "$(GIMME_GO_VERSION=1.8.3 gimme)"
+  - go get -u github.com/alecthomas/gometalinter
+  - gometalinter --install
   - |
     function timeout() { perl -e 'alarm shift; exec @ARGV' "$@"; }
 script:

CMakeLists.txt

@@ -137,7 +137,8 @@ if(WITH_GPU)
 endif(WITH_GPU)
 
 if(USE_NNPACK)
-  list(APPEND EXTERNAL_LIBS ${NNPACK_LIB} ${PTHREADPOOL_LIB} "rt")
+    include(external/nnpack)
+    list(APPEND EXTERNAL_LIBS ${NNPACK_LIBS})
 endif(USE_NNPACK)
 
 add_subdirectory(proto)

cmake/external/nnpack.cmake

@@ -7,10 +7,24 @@ set(NNPACK_ROOT $ENV{NNPACK_ROOT} CACHE PATH "Folder contains NNPACK")
 find_path(NNPACK_INC_DIR nnpack.h PATHS ${NNPACK_ROOT}/include)
 find_library(NNPACK_LIB NAMES nnpack PATHS ${NNPACK_ROOT}/lib)
 find_library(PTHREADPOOL_LIB NAMES pthreadpool PATHS ${NNPACK_ROOT}/lib)
+find_library(NNPACK_UKERNELS_LIB NAMES nnpack_ukernels PATHS ${NNPACK_ROOT}/lib)
+find_library(NNPACK_CPUFEATURES_LIB NAMES cpufeatures PATHS ${NNPACK_ROOT}/lib)
 
 if(NNPACK_INC_DIR AND NNPACK_LIB AND PTHREADPOOL_LIB)
   set(NNPACK_FOUND ON)
   INCLUDE_DIRECTORIES(${NNPACK_INC_DIR})
+
+  set(NNPACK_LIBS)
+  list(APPEND NNPACK_LIBS ${NNPACK_LIB} ${PTHREADPOOL_LIB})
+  if (NNPACK_UKERNELS_LIB)
+    list(APPEND NNPACK_LIBS ${NNPACK_UKERNELS_LIB})
+  endif()
+  if (NNPACK_CPUFEATURES_LIB)
+    list(APPEND NNPACK_LIBS ${NNPACK_CPUFEATURES_LIB})
+  endif()
+  if(NOT ANDROID)
+    list(APPEND NNPACK_LIBS "rt")
+  endif()
 else()
   message(FATAL_ERROR "Cannot find NNPACK in (${NNPACK_ROOT})")
 endif()

go/master/c/client.go

@@ -23,7 +23,6 @@ import (
 	log "github.com/sirupsen/logrus"
 )
 
-var nullPtr = unsafe.Pointer(uintptr(0))
 var mu sync.Mutex
 var handleMap = make(map[C.paddle_master_client]*master.Client)
 var curHandle C.paddle_master_client
@@ -114,13 +113,13 @@ func paddle_next_record(client C.paddle_master_client, record **C.uchar) C.int {
 	if err != nil {
 		// Error
 		// TODO: return the type of error?
-		*record = (*C.uchar)(nullPtr)
+		*record = (*C.uchar)(nil)
 		return -1
 	}
 
 	if len(r) == 0 {
 		// Empty record
-		*record = (*C.uchar)(nullPtr)
+		*record = (*C.uchar)(nil)
 		return 0
 	}
 

go/master/client.go

@@ -69,7 +69,10 @@ func (c *Client) getRecords() {
 		// We treat a task as finished whenever the last data
 		// instance of the task is read. This is not exactly
 		// correct, but a reasonable approximation.
-		c.taskFinished(t.Meta.ID)
+		err = c.taskFinished(t.Meta.ID)
+		if err != nil {
+			log.Errorln(err)
+		}
 	}
 }
 

go/master/client_internal_test.go

@@ -66,11 +66,21 @@ func TestGetFinishTask(t *testing.T) {
 
 	for i := 0; i < totalTask*chunkPerTask; i++ {
 		w := recordio.NewWriter(f, -1, -1)
-		w.Write(nil)
+		_, err = w.Write(nil)
+		if err != nil {
+			panic(err)
+		}
+
 		// call Close to force RecordIO writing a chunk.
-		w.Close()
+		err = w.Close()
+		if err != nil {
+			panic(err)
+		}
+	}
+	err = f.Close()
+	if err != nil {
+		panic(err)
 	}
-	f.Close()
 
 	// Manually intialize client to avoid calling c.getRecords()
 	c := &Client{}
@@ -79,7 +89,11 @@ func TestGetFinishTask(t *testing.T) {
 	ch := make(chan string, 1)
 	ch <- addr
 	go c.monitorMaster(ch)
-	c.SetDataset([]string{path})
+	err = c.SetDataset([]string{path})
+	if err != nil {
+		panic(err)
+	}
+
 	checkOnePass := func(i int) {
 		var tasks []Task
 		for idx := 0; idx < totalTask; idx++ {

go/master/client_test.go

@@ -57,14 +57,30 @@ func TestNextRecord(t *testing.T) {
 
 	w := recordio.NewWriter(f, -1, -1)
 	for i := 0; i < total; i++ {
-		w.Write([]byte{byte(i)})
+		_, err = w.Write([]byte{byte(i)})
+		if err != nil {
+			panic(err)
+		}
+	}
+
+	err = w.Close()
+	if err != nil {
+		panic(err)
+	}
+
+	err = f.Close()
+	if err != nil {
+		panic(err)
 	}
-	w.Close()
-	f.Close()
+
 	curAddr := make(chan string, 1)
 	curAddr <- fmt.Sprintf(":%d", p)
 	c := master.NewClient(curAddr, 10)
-	c.SetDataset([]string{path})
+	err = c.SetDataset([]string{path})
+	if err != nil {
+		panic(err)
+	}
+
 	for pass := 0; pass < 50; pass++ {
 		received := make(map[byte]bool)
 		for i := 0; i < total; i++ {

go/master/etcd_client.go

@@ -30,7 +30,7 @@ type EtcdClient struct {
 // NewEtcdClient creates a new EtcdClient.
 func NewEtcdClient(endpoints []string, addr string, lockPath, addrPath, statePath string, ttlSec int) (*EtcdClient, error) {
 	log.Debugf("Connecting to etcd at %v", endpoints)
-	// TODO(helin): gracefully shutdown etcd store. Becuase etcd
+	// TODO(helin): gracefully shutdown etcd store. Because etcd
 	// store holds a etcd lock, even though the lock will expire
 	// when the lease timeout, we need to implement graceful
 	// shutdown to release the lock.
@@ -60,7 +60,7 @@ func NewEtcdClient(endpoints []string, addr string, lockPath, addrPath, statePat
 	}
 	log.Debugf("Successfully acquired lock at %s.", lockPath)
 
-	put := clientv3.OpPut(addrPath, string(addr))
+	put := clientv3.OpPut(addrPath, addr)
 	resp, err := cli.Txn(context.Background()).If(lock.IsOwner()).Then(put).Commit()
 	if err != nil {
 		return nil, err

go/master/inmem_store.go

@@ -4,7 +4,7 @@ import "sync"
 
 // InMemStore is an in memory implementation of Store interface.
 //
-// It does not tolerate the fault that casues the program to crash.
+// It does not tolerate the fault that causes the program to crash.
 type InMemStore struct {
 	mu  sync.Mutex
 	buf []byte

go/master/service.go

@@ -160,7 +160,7 @@ func (s *Service) recover() (bool, error) {
 
 // snapshot *must* be called with s.mu being held.
 func (s *Service) snapshot() error {
-	// TOOD(helin): etcd request has a size limit, so the snapshot
+	// TODO(helin): etcd request has a size limit, so the snapshot
 	// size is limited by the max request size. We should either
 	// divide the snapshot into smaller chunks and save under
 	// different keys, or configure the request size to be big
@@ -289,7 +289,6 @@ func (s *Service) processFailedTask(t taskEntry, epoch int) {
 
 	log.Warningf("Task %v failed %d times, discard.", t.Task, t.NumFailure)
 	s.taskQueues.Todo = append(s.taskQueues.Todo, t)
-	return
 }
 
 func (s *Service) checkTimeoutFunc(taskID int, epoch int) func() {

go/pserver/client/c/cclient.go

@@ -34,7 +34,6 @@ import (
 	log "github.com/sirupsen/logrus"
 )
 
-var nullPtr = unsafe.Pointer(uintptr(0))
 var mu sync.Mutex
 var handleMap = make(map[C.paddle_pserver_client]*client.Client)
 var curHandle C.paddle_pserver_client
@@ -63,7 +62,7 @@ func remove(client C.paddle_pserver_client) *client.Client {
 }
 
 func cArrayToSlice(p unsafe.Pointer, len int) []byte {
-	if p == nullPtr {
+	if p == nil {
 		return nil
 	}
 
@@ -101,11 +100,11 @@ func paddle_new_pserver_client(addrs *C.char, selected int) C.paddle_pserver_cli
 }
 
 //export paddle_new_etcd_pserver_client
-func paddle_new_etcd_pserver_client(etcd_endpoints *C.char, selected int) C.paddle_pserver_client {
+func paddle_new_etcd_pserver_client(etcdEndpoints *C.char, selected int) C.paddle_pserver_client {
 	// TODO(Longfei: use etcd lock to decide which trainer to initialize the parameters)
-	addr := C.GoString(etcd_endpoints)
-	etcd_client := client.NewEtcd(addr)
-	c := client.NewClient(etcd_client, etcd_client.Desired(), selector(selected != 0))
+	addr := C.GoString(etcdEndpoints)
+	etcdClient := client.NewEtcd(addr)
+	c := client.NewClient(etcdClient, etcdClient.Desired(), selector(selected != 0))
 	return add(c)
 }
 
@@ -124,20 +123,20 @@ func paddle_begin_init_params(client C.paddle_pserver_client) C.int {
 }
 
 //export paddle_init_param
-func paddle_init_param(client C.paddle_pserver_client, param C.paddle_parameter, param_config unsafe.Pointer, config_len C.int) C.int {
+func paddle_init_param(client C.paddle_pserver_client, param C.paddle_parameter, paramConfig unsafe.Pointer, configLen C.int) C.int {
 	et := pserver.ElementType(param.element_type)
 	name := C.GoString(param.name)
 	content := cArrayToSlice(unsafe.Pointer(param.content), int(param.content_len))
 	pc := pserver.ParameterWithConfig{
 		Param:  pserver.Parameter{Name: name, ElementType: et, Content: content},
-		Config: cArrayToSlice(param_config, int(config_len)),
+		Config: cArrayToSlice(paramConfig, int(configLen)),
 	}
 	c := get(client)
 	err := c.InitParam(pc)
 
 	if err != nil {
 		if err.Error() == pserver.AlreadyInitialized {
-			log.Warningf("parameter %s already initialized, treat paddle_init_param as sucessful.", name)
+			log.Warningf("parameter %s already initialized, treat paddle_init_param as successful.", name)
 			return C.PSERVER_OK
 		}
 		log.Errorln(err)
@@ -153,7 +152,7 @@ func paddle_finish_init_params(client C.paddle_pserver_client) C.int {
 	err := c.FinishInitParams()
 	if err != nil {
 		if err.Error() == pserver.AlreadyInitialized {
-			log.Warningln("parameters already initialized, treat paddle_finish_init_params as sucessful.")
+			log.Warningln("parameters already initialized, treat paddle_finish_init_params as successful.")
 			return C.PSERVER_OK
 		}
 
@@ -223,12 +222,12 @@ func paddle_get_params(client C.paddle_pserver_client, dst **C.paddle_parameter,
 		p := ps[i]
 		param := *(**C.paddle_parameter)(unsafe.Pointer((uintptr(unsafe.Pointer(dst)) + uintptr(i)*unsafe.Sizeof(*dst))))
 
-		if unsafe.Pointer(param) == nullPtr {
+		if unsafe.Pointer(param) == nil {
 			log.Errorln("must pre-allocate parameter.")
 			return C.PSERVER_ERROR
 		}
 
-		if unsafe.Pointer(param.content) != nullPtr {
+		if unsafe.Pointer(param.content) != nil {
 			if int(param.content_len) != len(p.Content) {
 				log.Errorf("the pre-allocated content len does not match parameter content len. Pre-allocated len: %d, returned len: %d", param.content_len, len(p.Content))
 				return C.PSERVER_ERROR

go/pserver/client/client.go

@@ -233,7 +233,7 @@ func (c *Client) Save(path string) error {
 
 func strHash(s string) uint32 {
 	h := fnv.New32a()
-	h.Write([]byte(s))
+	_, _ = h.Write([]byte(s))
 	return h.Sum32()
 }
 

go/pserver/client/client_test.go

@@ -79,15 +79,33 @@ func initEtcdClient() {
 		log.Errorf("err %v", err)
 	}
 	ctx, cancel := context.WithTimeout(context.Background(), timeout)
-	client.Delete(ctx, pserver.PsDesired)
-	client.Delete(ctx, pserver.PsPath)
-	client.Put(ctx, pserver.PsDesired, strconv.Itoa(numPserver))
+	_, err = client.Delete(ctx, pserver.PsDesired)
+	if err != nil {
+		panic(err)
+	}
+
+	_, err = client.Delete(ctx, pserver.PsPath)
+	if err != nil {
+		panic(err)
+	}
+
+	_, err = client.Put(ctx, pserver.PsDesired, strconv.Itoa(numPserver))
+	if err != nil {
+		panic(err)
+	}
+
 	ports := initClient()
 	for i := 0; i < numPserver; i++ {
-		client.Put(ctx, pserver.PsPath+strconv.Itoa(i), ":"+strconv.Itoa(ports[i]))
+		_, err = client.Put(ctx, pserver.PsPath+strconv.Itoa(i), ":"+strconv.Itoa(ports[i]))
+		if err != nil {
+			panic(err)
+		}
 	}
 	cancel()
-	client.Close()
+	err = client.Close()
+	if err != nil {
+		panic(err)
+	}
 }
 
 type selector bool

go/pserver/client/etcd_client.go

@@ -12,8 +12,7 @@ import (
 )
 
 const (
-	// DefaultEtcdTimeout is the default etcd timeout
-	DefaultEtcdTimeout time.Duration = 5 * time.Second
+	defaultEtcdTimeout time.Duration = 5 * time.Second
 )
 
 // EtcdClient is used by pserver client that is a part of trainer process.
@@ -48,7 +47,7 @@ func (p *EtcdClient) Desired() int {
 
 		psDesired, err = strconv.Atoi(string(resp.Kvs[0].Value))
 		if err != nil {
-			log.Errorf("psDesired %s invalid %v", psDesired, err)
+			log.Errorf("psDesired %d invalid %v", psDesired, err)
 			time.Sleep(p.timeout)
 			continue
 		}
@@ -67,12 +66,12 @@ func (p *EtcdClient) List() []Server {
 	for {
 		for i := 0; i < psDesired; i++ {
 			ctx, cancel := context.WithTimeout(context.Background(), p.timeout)
+			cancel()
 			psKey := pserver.PsPath + strconv.Itoa(i)
 			log.Debugf("checking %s", psKey)
 			resp, err := p.client.Get(ctx, psKey)
-			cancel()
 			if err != nil {
-				log.Infof("Get psKey=%s error, %v", psKey, err)
+				log.Infof("Get psKey= %s error, %v", psKey, err)
 				time.Sleep(p.timeout)
 				continue
 			}
@@ -107,11 +106,11 @@ func NewEtcd(endpoints string) *EtcdClient {
 	for {
 		cli, err = clientv3.New(clientv3.Config{
 			Endpoints:   ep,
-			DialTimeout: DefaultEtcdTimeout,
+			DialTimeout: defaultEtcdTimeout,
 		})
 		if err != nil {
 			log.Errorf("Init etcd connection failed: %v", err)
-			time.Sleep(DefaultEtcdTimeout)
+			time.Sleep(defaultEtcdTimeout)
 			continue
 		}
 		break
@@ -119,7 +118,7 @@ func NewEtcd(endpoints string) *EtcdClient {
 	log.Infof("Connected to etcd: %s\n", endpoints)
 	client := &EtcdClient{
 		client:    cli,
-		timeout:   DefaultEtcdTimeout,
+		timeout:   defaultEtcdTimeout,
 		endpoints: ep,
 	}
 	return client

go/pserver/etcd_client.go

@@ -177,10 +177,10 @@ func (e *EtcdClient) registerPserverEtcd(ctx context.Context, port int) (int, er
 				break
 			}
 		}
-		if registered == true {
+		if registered {
 			return nil
 		}
-		return errors.New("not registerd, may due to already have enough pservers")
+		return errors.New("not registered, may due to already have enough pservers")
 	}, concurrency.WithAbortContext(ctx), concurrency.WithIsolation(concurrency.RepeatableReads))
 
 	if err != nil {
@@ -211,8 +211,5 @@ func (e *EtcdClient) PutKey(key string, value []byte, timeout time.Duration) err
 	ctx, cancel := context.WithTimeout(context.Background(), timeout)
 	_, err := e.etcdClient.Put(ctx, key, string(value))
 	cancel()
-	if err != nil {
-		return err
-	}
-	return nil
+	return err
 }

go/pserver/optimizer.go

@@ -14,8 +14,6 @@ import (
 	log "github.com/sirupsen/logrus"
 )
 
-var nullPtr = unsafe.Pointer(uintptr(0))
-
 type optimizer struct {
 	opt         *C.struct_paddle_optimizer
 	elementType ElementType
@@ -23,7 +21,7 @@ type optimizer struct {
 }
 
 func cArrayToSlice(p unsafe.Pointer, len int) []byte {
-	if p == nullPtr {
+	if p == nil {
 		return nil
 	}
 
@@ -92,8 +90,8 @@ func (o *optimizer) UpdateParameter(g Gradient) error {
 }
 
 func (o *optimizer) Cleanup() {
-	if unsafe.Pointer(o.opt) != nullPtr {
+	if unsafe.Pointer(o.opt) != nil {
 		C.paddle_release_optimizer(o.opt)
-		o.opt = (*C.struct_paddle_optimizer)(nullPtr)
+		o.opt = (*C.struct_paddle_optimizer)(nil)
 	}
 }

go/pserver/service.go

@@ -211,7 +211,7 @@ func (s *Service) GetParam(name string, parameter *Parameter) error {
 	// learning optimization methods are stochastic in
 	// nature. This race condition is allowed deliberately
 	// to save the program from making a copy of the
-	// paramter content.
+	// parameter content.
 	parameter.Name = name
 	parameter.ElementType = opt.elementType
 	parameter.Content = opt.GetWeights()
@@ -219,7 +219,7 @@ func (s *Service) GetParam(name string, parameter *Parameter) error {
 }
 
 // pserver save checkpoint
-func (s *Service) doCheckpoint() error {
+func (s *Service) doCheckpoint() (err error) {
 	<-s.initialized
 	s.mu.Lock()
 	defer s.mu.Unlock()
@@ -237,9 +237,9 @@ func (s *Service) doCheckpoint() error {
 	}
 	var buf bytes.Buffer
 	encoder := gob.NewEncoder(&buf)
-	err := encoder.Encode(cp)
+	err = encoder.Encode(cp)
 	if err != nil {
-		return err
+		return
 	}
 
 	cpMeta := checkpointMeta{}
@@ -248,10 +248,14 @@ func (s *Service) doCheckpoint() error {
 	h := md5.New()
 	cpMeta.MD5 = hex.EncodeToString(h.Sum(buf.Bytes()))
 
-	cpMetajson, _ := json.Marshal(cpMeta)
+	cpMetajson, err := json.Marshal(cpMeta)
+	if err != nil {
+		return
+	}
+
 	err = s.client.PutKey(filepath.Join(PsCheckpoint, strconv.Itoa(s.idx)), cpMetajson, 3*time.Second)
 	if err != nil {
-		return err
+		return
 	}
 	if _, err = os.Stat(cpMeta.UUID); os.IsNotExist(err) {
 		log.Info("checkpoint does not exists.")
@@ -264,15 +268,32 @@ func (s *Service) doCheckpoint() error {
 		}
 	}
 	f, err := os.Create(cpMeta.UUID)
-	defer f.Close()
 	if err != nil {
-		return err
+		return
 	}
+
+	defer func() {
+		closeErr := f.Close()
+		if closeErr != nil {
+			if err != nil {
+				log.Errorln(closeErr)
+			} else {
+				// Set closeErr as return value.
+				err = closeErr
+			}
+		}
+	}()
+
 	writer := bufio.NewWriter(f)
 	_, err = writer.Write(buf.Bytes())
-	writer.Flush()
 	if err != nil {
-		return err
+		return
 	}
-	return nil
+
+	err = writer.Flush()
+	if err != nil {
+		return
+	}
+
+	return
 }

paddle/framework/ddim.cc

@@ -117,6 +117,8 @@ int DDim::operator[](int idx) const {
   return boost::apply_visitor(DynamicConstIndexer(idx), var);
 }
 
+ssize_t DDim::size() const { return arity(*this); }
+
 bool DDim::operator==(DDim d) const {
   if (var.which() != d.getVar().which()) {
     return false;
@@ -278,5 +280,9 @@ std::ostream& operator<<(std::ostream& os, const DDim& ddim) {
   return os;
 }
 
+DDim::DDim(std::initializer_list<int> init_list) {
+  *this = make_ddim(init_list);
+}
+
 }  // namespace framework
 }  // namespace paddle

paddle/framework/ddim.h

@@ -29,6 +29,8 @@ struct DDim {
   template <int D>
   explicit DDim(const Dim<D>& in) : var(in) {}
 
+  /*implicit*/ DDim(std::initializer_list<int> init_list);
+
   template <int D>
   DDim& operator=(const Dim<D>& in) {
     var = in;
@@ -57,6 +59,8 @@ struct DDim {
   DDim operator+(DDim d) const;
 
   DDim operator*(DDim d) const;
+
+  ssize_t size() const;
 };
 
 /**

paddle/framework/ddim_test.cc

@@ -49,6 +49,7 @@ TEST(DDim, Equality) {
 
   // arity of a DDim
   EXPECT_EQ(paddle::framework::arity(ddim), 3);
+  EXPECT_EQ(ddim.size(), 3);
 
   // product of a DDim
   EXPECT_EQ(paddle::framework::product(vddim), 45);

paddle/framework/op_registry.h

@@ -198,6 +198,7 @@ Add a mark to which output is temporary is helpful for future optimization.
 
 class OpRegistry {
   using OpCreator = std::function<OperatorBase*()>;
+  using VarIndexMap = std::unordered_map<std::string, int>;
 
  public:
   template <typename OpType, typename ProtoMakerType>
@@ -212,6 +213,17 @@ class OpRegistry {
         op_proto.IsInitialized(),
         "Fail to initialize %s's OpProto, because %s is not initialized",
         op_type, op_proto.InitializationErrorString());
+
+    VarIndexMaps()[op_type].reset(new VarIndexMap());
+    auto& varmap = *VarIndexMaps()[op_type];
+    int idx = 0;
+    for (auto& var : op_proto.inputs()) {
+      varmap[var.name()] = idx++;
+    }
+    idx = 0;
+    for (auto& var : op_proto.outputs()) {
+      varmap[var.name()] = idx++;
+    }
   }
 
   static OperatorPtr CreateOp(const OpDesc& op_desc) {
@@ -220,7 +232,6 @@ class OpRegistry {
     OperatorPtr op(creators().at(op_type)());
     //! Fill op's data member. Not use constructor because it will be noising
     //! for Op developer.
-    const OpProto& op_proto = protos().at(op_type);
     op->type_ = op_desc.type();
     // set op's inputs_ from desc.
     op->inputs_.reserve((size_t)op_desc.inputs_size());
@@ -240,25 +251,31 @@ class OpRegistry {
     //! Convert Temporary variable name to an unique variable name.
     GenerateTempVariableName(op.get());
 
-    // set argument offsets stored in op.
-    CreateInOutOffsetMap(op, op_proto);
+    //! set argument offsets stored in op.
+    {
+      auto var_index_it = VarIndexMaps().find(op_type);
+      if (var_index_it != VarIndexMaps().end()) {
+        op->in_out_idxs_ = var_index_it->second;
+      }
+    }
     //! Other op's custom Init for a complex Op. For simple Op, the Init
     //! method do nothing.
     op->Init();
     return op;
   }
 
-  // init op.in_out_idxs_ to accelerate argument's offset lookup.
-  static void CreateInOutOffsetMap(OperatorPtr op, const OpProto& proto) {
-    op->CreateInOutOffsetMap(proto);
-  }
-
   static std::unordered_map<std::string, OpProto>& protos() {
     static std::unordered_map<std::string, OpProto> protos_;
     return protos_;
   };
 
  private:
+  static std::unordered_map<std::string, std::shared_ptr<VarIndexMap>>&
+  VarIndexMaps() {
+    static std::unordered_map<std::string, std::shared_ptr<VarIndexMap>> maps_;
+    return maps_;
+  }
+
   static void GenerateTempVariableName(OperatorBase* op) {
     static std::atomic<size_t> gUniqId(0UL);
     for (auto& outname : op->outputs_) {
@@ -311,7 +328,7 @@ class OpRegisterHelper {
 /**
  * Macro to Register OperatorKernel.
  */
-#define REGISTER_OP_KERNEL(type, DEVICE_TYPE, PlaceType, KernelType)      \
+#define REGISTER_OP_KERNEL(type, DEVICE_TYPE, PlaceType, ...)             \
   STATIC_ASSERT_GLOBAL_NAMESPACE(                                         \
       __reg_op_kernel_##type##_##DEVICE_TYPE##__,                         \
       "REGISTER_OP_KERNEL must be in global namespace");                  \
@@ -320,17 +337,19 @@ class OpRegisterHelper {
       ::paddle::framework::OperatorWithKernel::OpKernelKey key;           \
       key.place_ = PlaceType();                                           \
       ::paddle::framework::OperatorWithKernel::AllOpKernels()[#type][key] \
-          .reset(new KernelType());                                       \
+          .reset(new __VA_ARGS__());                                      \
     }                                                                     \
   };                                                                      \
   static __op_kernel_register__##type##__ __reg_kernel_##type##__;        \
   int __op_kernel_register_##type##_handle_##DEVICE_TYPE##__() { return 0; }
 
-#define REGISTER_OP_GPU_KERNEL(type, KernelType) \
-  REGISTER_OP_KERNEL(type, GPU, ::paddle::platform::GPUPlace, KernelType)
+// (type, KernelType)
+#define REGISTER_OP_GPU_KERNEL(type, ...) \
+  REGISTER_OP_KERNEL(type, GPU, ::paddle::platform::GPUPlace, __VA_ARGS__)
 
-#define REGISTER_OP_CPU_KERNEL(type, KernelType) \
-  REGISTER_OP_KERNEL(type, CPU, ::paddle::platform::CPUPlace, KernelType)
+// (type, KernelType)
+#define REGISTER_OP_CPU_KERNEL(type, ...) \
+  REGISTER_OP_KERNEL(type, CPU, ::paddle::platform::CPUPlace, __VA_ARGS__)
 
 /**
  * Macro to mark what Operator and Kernel we will use and tell the compiler to

paddle/framework/operator.cc

@@ -19,21 +19,10 @@ limitations under the License. */
 namespace paddle {
 namespace framework {
 
-void OperatorBase::CreateInOutOffsetMap(const OpProto& proto) {
-  PADDLE_ENFORCE(in_out_idxs_.empty(), "duplicate call CreateInOutOffsetMap");
-  for (int i = 0; i < proto.inputs_size(); i++) {
-    const auto& name = proto.inputs()[i].name();
-    in_out_idxs_[name] = i;
-  }
-  for (int i = 0; i < proto.outputs_size(); i++) {
-    const auto& name = proto.outputs()[i].name();
-    in_out_idxs_[name] = i;
-  }
-}
-
 const std::string& OperatorBase::Input(const std::string& name) const {
-  auto it = in_out_idxs_.find(name);
-  PADDLE_ENFORCE(it != in_out_idxs_.end(), "no key [%s] in in_out_idxs_", name);
+  auto it = in_out_idxs_->find(name);
+  PADDLE_ENFORCE(it != in_out_idxs_->end(), "no key [%s] in in_out_idxs_",
+                 name);
 
   if (attrs_.count("input_format") == 0) {
     return inputs_[it->second];
@@ -46,7 +35,7 @@ const std::string& OperatorBase::Input(const std::string& name) const {
 
 std::vector<std::string> OperatorBase::Inputs(const std::string& name) const {
   auto input_format = GetAttr<std::vector<int>>("input_format");
-  auto offset = in_out_idxs_.at(name);
+  auto offset = in_out_idxs_->at(name);
 
   return std::vector<std::string>{
       inputs_.begin() + input_format.at(offset),
@@ -54,8 +43,9 @@ std::vector<std::string> OperatorBase::Inputs(const std::string& name) const {
 }
 
 const std::string& OperatorBase::Output(const std::string& name) const {
-  auto it = in_out_idxs_.find(name);
-  PADDLE_ENFORCE(it != in_out_idxs_.end(), "no key [%s] in in_out_idxs_", name);
+  auto it = in_out_idxs_->find(name);
+  PADDLE_ENFORCE(it != in_out_idxs_->end(), "no key [%s] in in_out_idxs_",
+                 name);
 
   if (attrs_.count("output_format") == 0) {
     return outputs_[it->second];
@@ -68,7 +58,7 @@ const std::string& OperatorBase::Output(const std::string& name) const {
 
 std::vector<std::string> OperatorBase::Outputs(const std::string& name) const {
   auto output_format = GetAttr<std::vector<int>>("output_format");
-  auto offset = in_out_idxs_.at(name);
+  auto offset = in_out_idxs_->at(name);
 
   return std::vector<std::string>{
       outputs_.begin() + output_format.at(offset),

paddle/framework/operator.h

@@ -82,16 +82,13 @@ class OperatorBase {
   // TODO add a vector_view to prevent memory copy.
   std::vector<std::string> Outputs(const std::string& name) const;
 
-  // init in_out_idxs_ to accelerate argument's offset lookup.
-  void CreateInOutOffsetMap(const OpProto& proto);
-
  public:
   std::string type_;
   std::vector<std::string> inputs_;
   std::vector<std::string> outputs_;
   AttributeMap attrs_;
   // store the arguments' offset described in op_desc.
-  std::unordered_map<std::string, int> in_out_idxs_;
+  std::shared_ptr<std::unordered_map<std::string, int>> in_out_idxs_;
 };
 
 class KernelContext {

paddle/framework/operator_test.cc

@@ -102,6 +102,7 @@ class OpWithKernelTest : public OperatorWithKernel {
                   const std::vector<Tensor*>& outputs) const override {}
 };
 
+template <typename T1, typename T2>
 class CPUKernelTest : public OpKernel {
  public:
   void Compute(const KernelContext& ctx) const {
@@ -171,7 +172,8 @@ class CPUKernalMultiInputsTest : public OpKernel {
 
 REGISTER_OP(op_with_kernel, paddle::framework::OpWithKernelTest,
             paddle::framework::OpKernelTestProtoAndCheckerMaker);
-REGISTER_OP_CPU_KERNEL(op_with_kernel, paddle::framework::CPUKernelTest);
+REGISTER_OP_CPU_KERNEL(op_with_kernel,
+                       paddle::framework::CPUKernelTest<float, float>);
 
 // test with single input
 TEST(OpKernel, all) {