Add CxxConfig and Related Java API and Improve CMakeLists

CMakeLists.txt

@@ -147,7 +147,7 @@ endif()
 
 # for lite, both server and mobile framework.
 option(WITH_LITE "Enable lite framework" OFF)
-option(WITH_JAVA "Compile PaddlePaddle with Java JNI lib" OFF)
+option(LITE_WITH_JAVA "Enable Java JNI lib in lite mode" OFF)
 option(LITE_WITH_CUDA "Enable CUDA in lite mode" OFF)
 option(LITE_WITH_X86  "Enable X86 in lite mode"  ON)
 option(LITE_WITH_ARM  "Enable ARM in lite mode"  OFF)

paddle/fluid/lite/api/CMakeLists.txt

@@ -131,8 +131,8 @@ if (WITH_TESTING)
     add_dependencies(test_paddle_api_lite extern_lite_download_lite_naive_model_tar_gz)
 endif()
 
-if (WITH_JAVA AND LITE_WITH_ARM)
-    add_subdirectory(android/jni)
+if (LITE_WITH_JAVA AND LITE_WITH_ARM)
+    add_subdirectory(android)
 endif()
 
 #lite_cc_binary(cxx_api_lite_bin SRCS cxx_api_bin.cc

paddle/fluid/lite/api/android/CMakeLists.txt

+if ((NOT LITE_WITH_JAVA) OR (NOT LITE_WITH_ARM))
+  return()
+endif()
+
+add_subdirectory(jni)

paddle/fluid/lite/api/android/jni/CMakeLists.txt

-if ((NOT WITH_LITE) OR (NOT WITH_JAVA))
+if ((NOT LITE_WITH_ARM) OR (NOT LITE_WITH_JAVA))
   return()
 endif()
 
@@ -15,7 +15,9 @@ find_package(JNI REQUIRED)
 
 # Generate PaddlePredictor.jar
 include_directories(${JNI_INCLUDE_DIRS})
-add_jar(PaddlePredictor src/com/baidu/paddle/lite/PaddlePredictor.java)
+add_jar(PaddlePredictor 
+    src/com/baidu/paddle/lite/PaddlePredictor.java
+    src/com/baidu/paddle/lite/Place.java)
 get_target_property(_jarFile PaddlePredictor JAR_FILE)
 get_target_property(_classDir PaddlePredictor CLASSDIR)
 set(_stubDir "${CMAKE_CURRENT_BINARY_DIR}")

paddle/fluid/lite/api/android/jni/paddle_lite_jni.cc

@@ -12,13 +12,22 @@ See the License for the specific language governing permissions and
 limitations under the License. */
 
 #include "paddle/fluid/lite/api/android/jni/paddle_lite_jni.h"
+
 #include <memory>
 #include <string>
 #include <utility>
 #include <vector>
 
+#include "paddle/fluid/lite/api/light_api.h"
+#include "paddle/fluid/lite/api/paddle_api.h"
+#include "paddle/fluid/lite/api/paddle_lite_factory_helper.h"
+#include "paddle/fluid/lite/api/paddle_place.h"
+#include "paddle/fluid/lite/api/paddle_use_kernels.h"
+#include "paddle/fluid/lite/api/paddle_use_ops.h"
+#include "paddle/fluid/lite/api/paddle_use_passes.h"
 #include "paddle/fluid/lite/kernels/arm/activation_compute.h"
 #include "paddle/fluid/lite/kernels/arm/batch_norm_compute.h"
+#include "paddle/fluid/lite/kernels/arm/calib_compute.h"
 #include "paddle/fluid/lite/kernels/arm/concat_compute.h"
 #include "paddle/fluid/lite/kernels/arm/conv_compute.h"
 #include "paddle/fluid/lite/kernels/arm/dropout_compute.h"
@@ -31,13 +40,6 @@ limitations under the License. */
 #include "paddle/fluid/lite/kernels/arm/split_compute.h"
 #include "paddle/fluid/lite/kernels/arm/transpose_compute.h"
 
-#include "paddle/fluid/lite/api/light_api.h"
-#include "paddle/fluid/lite/api/paddle_api.h"
-#include "paddle/fluid/lite/api/paddle_lite_factory_helper.h"
-#include "paddle/fluid/lite/api/paddle_use_kernels.h"
-#include "paddle/fluid/lite/api/paddle_use_ops.h"
-#include "paddle/fluid/lite/api/paddle_use_passes.h"
-
 #define ARM_KERNEL_POINTER(kernel_class_name__)                    \
   std::unique_ptr<paddle::lite::kernels::arm::kernel_class_name__> \
       p##kernel_class_name__(                                      \
@@ -47,8 +49,10 @@ limitations under the License. */
 extern "C" {
 #endif
 
+using paddle::lite_api::CxxConfig;
 using paddle::lite_api::MobileConfig;
 using paddle::lite_api::PaddlePredictor;
+using paddle::lite_api::Place;
 using paddle::lite_api::Tensor;
 
 static std::shared_ptr<PaddlePredictor> predictor;
@@ -59,6 +63,8 @@ static std::shared_ptr<PaddlePredictor> predictor;
  */
 static void use_arm_kernels() {
   ARM_KERNEL_POINTER(BatchNormCompute);
+  ARM_KERNEL_POINTER(CalibComputeFp32ToInt8);
+  ARM_KERNEL_POINTER(CalibComputeInt8ToFp32);
   ARM_KERNEL_POINTER(ConvCompute);
   ARM_KERNEL_POINTER(ConcatCompute);
   ARM_KERNEL_POINTER(ElementwiseAddCompute);
@@ -129,6 +135,31 @@ inline std::vector<int64_t> jintarray_to_int64_vector(JNIEnv *env,
   return dim_vec;
 }
 
+/**
+ * Converts Java com.baidu.paddle.lite.Place to c++ paddle::lite_api::Place.
+ */
+inline static Place jplace_to_cpp_place(JNIEnv *env, jobject java_place) {
+  jclass place_jclazz = env->GetObjectClass(java_place);
+
+  jmethodID target_method =
+      env->GetMethodID(place_jclazz, "getTargetInt", "()I");
+  jmethodID precision_method =
+      env->GetMethodID(place_jclazz, "getPrecisionInt", "()I");
+  jmethodID data_layout_method =
+      env->GetMethodID(place_jclazz, "getDataLayoutInt", "()I");
+  jmethodID device_method = env->GetMethodID(place_jclazz, "getDevice", "()I");
+
+  int target = env->CallIntMethod(java_place, target_method);
+  int precision = env->CallIntMethod(java_place, precision_method);
+  int data_layout = env->CallIntMethod(java_place, data_layout_method);
+  int device = env->CallIntMethod(java_place, device_method);
+
+  return Place(static_cast<paddle::lite_api::TargetType>(target),
+               static_cast<paddle::lite_api::PrecisionType>(precision),
+               static_cast<paddle::lite_api::DataLayoutType>(data_layout),
+               device);
+}
+
 inline static int64_t product(const std::vector<int64_t> &vec) {
   if (vec.empty()) {
     return 0;
@@ -140,6 +171,31 @@ inline static int64_t product(const std::vector<int64_t> &vec) {
   return result;
 }
 
+JNIEXPORT jboolean JNICALL
+Java_com_baidu_paddle_lite_PaddlePredictor_loadCxxModel(
+    JNIEnv *env, jclass thiz, jstring model_path, jobject preferred_place,
+    jobjectArray valid_places) {
+  if (predictor != nullptr) {
+    return JNI_FALSE;
+  }
+  use_arm_kernels();
+
+  int valid_place_count = env->GetArrayLength(valid_places);
+  std::vector<Place> cpp_valid_places;
+  for (int i = 0; i < valid_place_count; ++i) {
+    jobject jplace = env->GetObjectArrayElement(valid_places, i);
+    cpp_valid_places.push_back(jplace_to_cpp_place(env, jplace));
+  }
+
+  CxxConfig config;
+  config.set_model_dir(jstring_to_cpp_string(env, model_path));
+  config.set_preferred_place(jplace_to_cpp_place(env, preferred_place));
+  config.set_valid_places(cpp_valid_places);
+
+  predictor = paddle::lite_api::CreatePaddlePredictor(config);
+  return predictor == nullptr ? JNI_FALSE : JNI_TRUE;
+}
+
 JNIEXPORT jboolean JNICALL
 Java_com_baidu_paddle_lite_PaddlePredictor_loadMobileModel(JNIEnv *env,
                                                            jclass thiz,
@@ -149,9 +205,19 @@ Java_com_baidu_paddle_lite_PaddlePredictor_loadMobileModel(JNIEnv *env,
   }
   use_arm_kernels();
   MobileConfig config;
-  std::string model_dir = jstring_to_cpp_string(env, model_path);
-  config.set_model_dir(model_dir);
+
+  config.set_model_dir(jstring_to_cpp_string(env, model_path));
   predictor = paddle::lite_api::CreatePaddlePredictor(config);
+  return predictor == nullptr ? JNI_FALSE : JNI_TRUE;
+}
+
+JNIEXPORT jboolean JNICALL
+Java_com_baidu_paddle_lite_PaddlePredictor_saveOptimizedModel(
+    JNIEnv *env, jclass thiz, jstring model_path) {
+  if (predictor == nullptr) {
+    return JNI_FALSE;
+  }
+  predictor->SaveOptimizedModel(jstring_to_cpp_string(env, model_path));
   return JNI_TRUE;
 }
 
@@ -167,6 +233,9 @@ Java_com_baidu_paddle_lite_PaddlePredictor_clear(JNIEnv *env, jclass thiz) {
 JNIEXPORT jboolean JNICALL
 Java_com_baidu_paddle_lite_PaddlePredictor_setInput__I_3I_3F(
     JNIEnv *env, jclass thiz, jint offset, jintArray dims, jfloatArray buf) {
+  if (predictor == nullptr) {
+    return JNI_FALSE;
+  }
   std::vector<int64_t> ddim = jintarray_to_int64_vector(env, dims);
 
   int len = env->GetArrayLength(buf);
@@ -188,6 +257,9 @@ Java_com_baidu_paddle_lite_PaddlePredictor_setInput__I_3I_3F(
 JNIEXPORT jboolean JNICALL
 Java_com_baidu_paddle_lite_PaddlePredictor_setInput__I_3I_3B(
     JNIEnv *env, jclass thiz, jint offset, jintArray dims, jbyteArray buf) {
+  if (predictor == nullptr) {
+    return JNI_FALSE;
+  }
   std::vector<int64_t> ddim = jintarray_to_int64_vector(env, dims);
 
   int len = env->GetArrayLength(buf);
@@ -209,6 +281,9 @@ Java_com_baidu_paddle_lite_PaddlePredictor_setInput__I_3I_3B(
 
 JNIEXPORT jboolean JNICALL
 Java_com_baidu_paddle_lite_PaddlePredictor_run(JNIEnv *, jclass) {
+  if (predictor == nullptr) {
+    return JNI_FALSE;
+  }
   predictor->Run();
   return JNI_TRUE;
 }

paddle/fluid/lite/api/android/jni/paddle_lite_jni.h

@@ -21,6 +21,17 @@
 #ifdef __cplusplus
 extern "C" {
 #endif
+/*
+ * Class:     com_baidu_paddle_lite_PaddlePredictor
+ * Method:    loadCxxModel
+ * Signature:
+ * (Ljava/lang/String;Lcom/baidu/paddle/lite/Place;[Lcom/baidu/paddle/lite/Place;)Z
+ */
+JNIEXPORT jboolean JNICALL
+Java_com_baidu_paddle_lite_PaddlePredictor_loadCxxModel(JNIEnv *, jclass,
+                                                        jstring, jobject,
+                                                        jobjectArray);
+
 /*
  * Class:     com_baidu_paddle_lite_PaddlePredictor
  * Method:    loadMobileModel
@@ -30,6 +41,15 @@ JNIEXPORT jboolean JNICALL
 Java_com_baidu_paddle_lite_PaddlePredictor_loadMobileModel(JNIEnv *, jclass,
                                                            jstring);
 
+/*
+ * Class:     com_baidu_paddle_lite_PaddlePredictor
+ * Method:    saveOptimizedModel
+ * Signature: (Ljava/lang/String;)Z
+ */
+JNIEXPORT jboolean JNICALL
+Java_com_baidu_paddle_lite_PaddlePredictor_saveOptimizedModel(JNIEnv *, jclass,
+                                                              jstring);
+
 /*
  * Class:     com_baidu_paddle_lite_PaddlePredictor
  * Method:    clear

paddle/fluid/lite/api/android/jni/src/com/baidu/paddle/lite/PaddlePredictor.java

@@ -24,6 +24,20 @@ public class PaddlePredictor {
         System.loadLibrary(JNI_LIB_NAME);
     }
 
+    /**
+     * Loads mobile cxx model, which is the model before optimizing passes. The cxx
+     * model allow users to manage hardware place resources. Caller uses a place at
+     * Java to control Target, DataLayout, Precision, and Device ID. More details
+     * about the four fields see our Paddle-Mobile document.
+     * 
+     * 
+     * @param modelPath      modelPath model file path
+     * @param preferredPlace preferred place to run Cxx Model
+     * @param validPlaces    n * 4 int array, valid places to run Cxx Model
+     * @return true if load successfully
+     */
+    public static native boolean loadCxxModel(String modelPath, Place preferredPlace, Place[] validPlaces);
+
     /**
      * Loads mobile lite model, which is the model after optimizing passes.
      *
@@ -32,6 +46,15 @@ public class PaddlePredictor {
      */
     public static native boolean loadMobileModel(String modelPath);
 
+    /**
+     * Saves optimized model, which is the model can be used by
+     * {@link loadMobileModel}
+     * 
+     * @param modelPath model file path
+     * @return true if save successfully
+     */
+    public static native boolean saveOptimizedModel(String modelPath);
+
     /**
      * Clears the current loaded model.
      * 

paddle/fluid/lite/api/android/jni/src/com/baidu/paddle/lite/Place.java

+/* Copyright (c) 2019 PaddlePaddle Authors. All Rights Reserved.
+Licensed 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. */
+
+package com.baidu.paddle.lite;
+
+/**
+ * Place specifies the execution context of a Kernel or input/output for a
+ * kernel. It is used to make the analysis of the MIR more clear and accurate.
+ */
+public class Place {
+    public enum TargetType {
+        UNKNOWN(0), HOST(1), X86(2), CUDA(3), ARM(4), OPEN_CL(5), ANY(6);
+
+        public final int value;
+
+        private TargetType(int value) {
+            this.value = value;
+        }
+    }
+
+    public enum PrecisionType {
+        UNKNOWN(0), FLOAT(1), INT8(2), INT32(3), ANY(4);
+
+        public final int value;
+
+        private PrecisionType(int value) {
+            this.value = value;
+        }
+    }
+
+    public enum DataLayoutType {
+        UNKNOWN(0), NCHW(1), ANY(2);
+
+        public final int value;
+
+        private DataLayoutType(int value) {
+            this.value = value;
+        }
+    }
+
+    public TargetType target;
+    public PrecisionType precision;
+    public DataLayoutType layout;
+    public int device;
+
+    public Place() {
+        target = TargetType.UNKNOWN;
+        precision = PrecisionType.UNKNOWN;
+        layout = DataLayoutType.UNKNOWN;
+        device = 0;
+    }
+
+    public Place(TargetType target) {
+        this(target, PrecisionType.FLOAT);
+    }
+
+    public Place(TargetType target, PrecisionType precision) {
+        this(target, precision, DataLayoutType.NCHW);
+    }
+
+    public Place(TargetType target, PrecisionType precision, DataLayoutType layout) {
+        this(target, precision, layout, 0);
+    }
+
+    public Place(TargetType target, PrecisionType precision, DataLayoutType layout, int device) {
+        this.target = target;
+        this.precision = precision;
+        this.layout = layout;
+        this.device = device;
+    }
+
+    public boolean isValid() {
+        return target != TargetType.UNKNOWN && precision != PrecisionType.UNKNOWN && layout != DataLayoutType.UNKNOWN;
+    }
+
+    public int getTargetInt() {
+        return target.value;
+    }
+
+    public int getPrecisionInt() {
+        return precision.value;
+    }
+
+    public int getDataLayoutInt() {
+        return layout.value;
+    }
+
+    public int getDevice() {
+        return device;
+    }
+
+}

paddle/fluid/lite/api/android/jni/test/com/baidu/paddle/lite/PaddlePredictorTest.java

@@ -33,6 +33,7 @@ class PaddlePredictorTest {
         PaddlePredictor.run();
         float[] output = PaddlePredictor.getFloatOutput(0);
 
+        assertEquals(output.length, 50000);
         assertEquals(output[0], 50.2132f, 1e-3f);
         assertEquals(output[1], -28.8729f, 1e-3f);