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      1 /*
      2  * Copyright (C) 2017 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #include "NeuralNetworksWrapper.h"
     18 
     19 #include <android/sharedmem.h>
     20 //#include <android-base/logging.h>
     21 #include <gtest/gtest.h>
     22 #include <sys/mman.h>
     23 #include <sys/types.h>
     24 #include <unistd.h>
     25 
     26 using namespace android::nn::wrapper;
     27 
     28 namespace {
     29 
     30 typedef float Matrix3x4[3][4];
     31 
     32 // Tests the various ways to pass weights and input/output data.
     33 class MemoryTest : public ::testing::Test {
     34 protected:
     35     virtual void SetUp() {}
     36 
     37     const Matrix3x4 matrix1 = {{1.f, 2.f, 3.f, 4.f}, {5.f, 6.f, 7.f, 8.f}, {9.f, 10.f, 11.f, 12.f}};
     38     const Matrix3x4 matrix2 = {{100.f, 200.f, 300.f, 400.f},
     39                                {500.f, 600.f, 700.f, 800.f},
     40                                {900.f, 1000.f, 1100.f, 1200.f}};
     41     const Matrix3x4 matrix3 = {{20.f, 30.f, 40.f, 50.f},
     42                                {21.f, 22.f, 23.f, 24.f},
     43                                {31.f, 32.f, 33.f, 34.f}};
     44     const Matrix3x4 expected3 = {{121.f, 232.f, 343.f, 454.f},
     45                                  {526.f, 628.f, 730.f, 832.f},
     46                                  {940.f, 1042.f, 1144.f, 1246.f}};
     47     const Matrix3x4 expected3b = {{22.f, 34.f, 46.f, 58.f},
     48                                   {31.f, 34.f, 37.f, 40.f},
     49                                   {49.f, 52.f, 55.f, 58.f}};
     50 };
     51 
     52 // Check that the values are the same. This works only if dealing with integer
     53 // value, otherwise we should accept values that are similar if not exact.
     54 int CompareMatrices(const Matrix3x4& expected, const Matrix3x4& actual) {
     55     int errors = 0;
     56     for (int i = 0; i < 3; i++) {
     57         for (int j = 0; j < 4; j++) {
     58             if (expected[i][j] != actual[i][j]) {
     59                 printf("expected[%d][%d] != actual[%d][%d], %f != %f\n", i, j, i, j,
     60                        static_cast<double>(expected[i][j]), static_cast<double>(actual[i][j]));
     61                 errors++;
     62             }
     63         }
     64     }
     65     return errors;
     66 }
     67 
     68 // TODO: test non-zero offset.
     69 TEST_F(MemoryTest, TestASharedMemory) {
     70     // Layout where to place matrix2 and matrix3 in the memory we'll allocate.
     71     // We have gaps to test that we don't assume contiguity.
     72     constexpr uint32_t offsetForMatrix2 = 20;
     73     constexpr uint32_t offsetForMatrix3 = offsetForMatrix2 + sizeof(matrix2) + 30;
     74     constexpr uint32_t memorySize = offsetForMatrix3 + sizeof(matrix3) + 60;
     75 
     76     int weightsFd = ASharedMemory_create("weights", memorySize);
     77     ASSERT_GT(weightsFd, -1);
     78     uint8_t* weightsData = (uint8_t*)mmap(nullptr, memorySize, PROT_READ | PROT_WRITE,
     79                                           MAP_SHARED, weightsFd, 0);
     80     ASSERT_NE(weightsData, nullptr);
     81     memcpy(weightsData + offsetForMatrix2, matrix2, sizeof(matrix2));
     82     memcpy(weightsData + offsetForMatrix3, matrix3, sizeof(matrix3));
     83     Memory weights(memorySize, PROT_READ | PROT_WRITE, weightsFd, 0);
     84     ASSERT_TRUE(weights.isValid());
     85 
     86     Model model;
     87     OperandType matrixType(Type::TENSOR_FLOAT32, {3, 4});
     88     OperandType scalarType(Type::INT32, {});
     89     int32_t activation(0);
     90     auto a = model.addOperand(&matrixType);
     91     auto b = model.addOperand(&matrixType);
     92     auto c = model.addOperand(&matrixType);
     93     auto d = model.addOperand(&matrixType);
     94     auto e = model.addOperand(&matrixType);
     95     auto f = model.addOperand(&scalarType);
     96 
     97     model.setOperandValueFromMemory(e, &weights, offsetForMatrix2, sizeof(Matrix3x4));
     98     model.setOperandValueFromMemory(a, &weights, offsetForMatrix3, sizeof(Matrix3x4));
     99     model.setOperandValue(f, &activation, sizeof(activation));
    100     model.addOperation(ANEURALNETWORKS_ADD, {a, c, f}, {b});
    101     model.addOperation(ANEURALNETWORKS_ADD, {b, e, f}, {d});
    102     model.identifyInputsAndOutputs({c}, {d});
    103     ASSERT_TRUE(model.isValid());
    104     model.finish();
    105 
    106     // Test the two node model.
    107     constexpr uint32_t offsetForMatrix1 = 20;
    108     int inputFd = ASharedMemory_create("input", offsetForMatrix1 + sizeof(Matrix3x4));
    109     ASSERT_GT(inputFd, -1);
    110     uint8_t* inputData = (uint8_t*)mmap(nullptr, offsetForMatrix1 + sizeof(Matrix3x4),
    111                                         PROT_READ | PROT_WRITE, MAP_SHARED, inputFd, 0);
    112     ASSERT_NE(inputData, nullptr);
    113     memcpy(inputData + offsetForMatrix1, matrix1, sizeof(Matrix3x4));
    114     Memory input(offsetForMatrix1 + sizeof(Matrix3x4), PROT_READ, inputFd, 0);
    115     ASSERT_TRUE(input.isValid());
    116 
    117     constexpr uint32_t offsetForActual = 32;
    118     int outputFd = ASharedMemory_create("output", offsetForActual + sizeof(Matrix3x4));
    119     ASSERT_GT(outputFd, -1);
    120     uint8_t* outputData = (uint8_t*)mmap(nullptr, offsetForActual + sizeof(Matrix3x4),
    121                                          PROT_READ | PROT_WRITE, MAP_SHARED, outputFd, 0);
    122     ASSERT_NE(outputData, nullptr);
    123     memset(outputData, 0, offsetForActual + sizeof(Matrix3x4));
    124     Memory actual(offsetForActual + sizeof(Matrix3x4), PROT_READ | PROT_WRITE, outputFd, 0);
    125     ASSERT_TRUE(actual.isValid());
    126 
    127     Compilation compilation2(&model);
    128     ASSERT_EQ(compilation2.finish(), Result::NO_ERROR);
    129 
    130     Execution execution2(&compilation2);
    131     ASSERT_EQ(execution2.setInputFromMemory(0, &input, offsetForMatrix1, sizeof(Matrix3x4)),
    132               Result::NO_ERROR);
    133     ASSERT_EQ(execution2.setOutputFromMemory(0, &actual, offsetForActual, sizeof(Matrix3x4)),
    134               Result::NO_ERROR);
    135     ASSERT_EQ(execution2.compute(), Result::NO_ERROR);
    136     ASSERT_EQ(CompareMatrices(expected3, *reinterpret_cast<Matrix3x4*>(outputData + offsetForActual)), 0);
    137     close(weightsFd);
    138     close(inputFd);
    139     close(outputFd);
    140 }
    141 
    142 TEST_F(MemoryTest, TestFd) {
    143     // Create a file that contains matrix2 and matrix3.
    144     char path[] = "/data/local/tmp/TestMemoryXXXXXX";
    145     int fd = mkstemp(path);
    146     const uint32_t offsetForMatrix2 = 20;
    147     const uint32_t offsetForMatrix3 = 200;
    148     static_assert(offsetForMatrix2 + sizeof(matrix2) < offsetForMatrix3, "matrices overlap");
    149     lseek(fd, offsetForMatrix2, SEEK_SET);
    150     write(fd, matrix2, sizeof(matrix2));
    151     lseek(fd, offsetForMatrix3, SEEK_SET);
    152     write(fd, matrix3, sizeof(matrix3));
    153     fsync(fd);
    154 
    155     Memory weights(offsetForMatrix3 + sizeof(matrix3), PROT_READ, fd, 0);
    156     ASSERT_TRUE(weights.isValid());
    157 
    158     Model model;
    159     OperandType matrixType(Type::TENSOR_FLOAT32, {3, 4});
    160     OperandType scalarType(Type::INT32, {});
    161     int32_t activation(0);
    162     auto a = model.addOperand(&matrixType);
    163     auto b = model.addOperand(&matrixType);
    164     auto c = model.addOperand(&matrixType);
    165     auto d = model.addOperand(&matrixType);
    166     auto e = model.addOperand(&matrixType);
    167     auto f = model.addOperand(&scalarType);
    168 
    169     model.setOperandValueFromMemory(e, &weights, offsetForMatrix2, sizeof(Matrix3x4));
    170     model.setOperandValueFromMemory(a, &weights, offsetForMatrix3, sizeof(Matrix3x4));
    171     model.setOperandValue(f, &activation, sizeof(activation));
    172     model.addOperation(ANEURALNETWORKS_ADD, {a, c, f}, {b});
    173     model.addOperation(ANEURALNETWORKS_ADD, {b, e, f}, {d});
    174     model.identifyInputsAndOutputs({c}, {d});
    175     ASSERT_TRUE(model.isValid());
    176     model.finish();
    177 
    178     // Test the three node model.
    179     Matrix3x4 actual;
    180     memset(&actual, 0, sizeof(actual));
    181     Compilation compilation2(&model);
    182     ASSERT_EQ(compilation2.finish(), Result::NO_ERROR);
    183     Execution execution2(&compilation2);
    184     ASSERT_EQ(execution2.setInput(0, matrix1, sizeof(Matrix3x4)), Result::NO_ERROR);
    185     ASSERT_EQ(execution2.setOutput(0, actual, sizeof(Matrix3x4)), Result::NO_ERROR);
    186     ASSERT_EQ(execution2.compute(), Result::NO_ERROR);
    187     ASSERT_EQ(CompareMatrices(expected3, actual), 0);
    188 
    189     close(fd);
    190     unlink(path);
    191 }
    192 
    193 }  // end namespace
    194