qt - CUDA V5 を使用した Qt Creator 32 ビット

Question

リリース モードで Qt で単純なコード CUDA をコンパイルしようとしています。じぶんの.pro

TEMPLATE = app
CONFIG += console

QT       += core
CONFIG   -= app_bundle
QT       -= gui


# Define output directories
DESTDIR = release
OBJECTS_DIR = obj
CUDA_OBJECTS_DIR = OBJECTS_DIR/cuda


SOURCES += main.cpp 

# This makes the .cu files appear in your project
OTHER_FILES +=  vectorAddition.cu


# CUDA settings <-- may change depending on your system

CUDA_SDK = "C:/ProgramData/NVIDIA Corporation/CUDA Samples/v5.0"   # Path to cuda SDK install
CUDA_DIR = "C:/Program Files/NVIDIA GPU Computing Toolkit/CUDA/v5.0"            # Path to cuda toolkit install
SYSTEM_NAME = Win32         # Depending on your system either 'Win32', 'x64', or 'Win64'
SYSTEM_TYPE = 32            # '32' or '64', depending on your system
CUDA_ARCH += sm_20          # Type of CUDA architecture, for example 'compute_10', 'compute_11', 'sm_10'



NVCC_OPTIONS = --use_fast_math
NVCCFLAGS    = --compiler-options -fno-strict-aliasing -use_fast_math --ptxas-options=-v

# include paths
INCLUDEPATH += $$CUDA_DIR/include \
               $$CUDA_SDK/common/inc

# library directories
QMAKE_LIBDIR += $$CUDA_DIR/lib/$$SYSTEM_NAME \
                $$CUDA_SDK/common/lib/$$SYSTEM_NAME 

# Add the necessary libraries
LIBS += -lcuda -lcudart



# The following makes sure all path names (which often include spaces) are put between quotation marks
CUDA_INC = $$join(INCLUDEPATH,'" -I"','-I"','"')

# Configuration of the Cuda compiler
CONFIG(debug, debug|release) {
   # debug mode
    cuda.input =vectorAddition.cu
    cuda.output = $$CUDA_OBJECTS_DIR/${QMAKE_FILE_BASE}_cuda.obj
    cuda.commands = $$CUDA_DIR/bin/nvcc.exe -D_DEBUG -m32 -g -G   -c $$NVCCFLAGS $$NVCC_OPTIONS $$CUDA_INC $$LIBS --machine $$SYSTEM_TYPE -arch=$$CUDA_ARCH -c -o ${QMAKE_FILE_OUT}${QMAKE_FILE_NAME}
    cuda.dependency_type = TYPE_C
    QMAKE_EXTRA_COMPILERS += cuda_d
}
else {
       # Release mode
    cuda.input    = vectorAddition.cu
    cuda.output   = $$CUDA_OBJECTS_DIR/${QMAKE_FILE_BASE}_cuda.o
    cuda.commands = $$CUDA_DIR/bin/nvcc.exe $$CUDA_INC  $$LIBS --machine $$SYSTEM_TYPE -c -o ${QMAKE_FILE_OUT}${QMAKE_FILE_NAME}
    cuda.dependency_type = TYPE_C
    QMAKE_EXTRA_COMPILERS += cuda
    }

vectorAddition.cu

extern "C"
__global__ void vectorAdditionCUDA(const float* a, const float* b, float* c, int n)
{
    int ii = blockDim.x * blockIdx.x + threadIdx.x;
    if (ii < n)
        c[ii] = a[ii] + b[ii];
}


void vectorAddition(const float* a, const float* b, float* c, int n) {
    float *a_cuda, *b_cuda, *c_cuda;
    unsigned int nBytes = sizeof(float) * n;
    int threadsPerBlock = 256;
    int blocksPerGrid   = (n + threadsPerBlock - 1) / threadsPerBlock;

    // allocate and copy memory into the device
    cudaMalloc((void **)& a_cuda, nBytes);
    cudaMalloc((void **)& b_cuda, nBytes);
    cudaMalloc((void **)& c_cuda, nBytes);
    cudaMemcpy(a_cuda, a, nBytes, cudaMemcpyHostToDevice);
    cudaMemcpy(b_cuda, b, nBytes, cudaMemcpyHostToDevice);

    vectorAdditionCUDA<<<blocksPerGrid, threadsPerBlock>>>(a_cuda, b_cuda, c_cuda, n);

    // load the answer back into the host
    cudaMemcpy(c, c_cuda, nBytes, cudaMemcpyDeviceToHost);

    cudaFree(a_cuda);
    cudaFree(b_cuda);
    cudaFree(c_cuda);
}

Main.cpp

#include <iostream>
#include <QtCore/QCoreApplication>
#include <QDebug>
#include <cuda.h>
using namespace std;

extern"C" void vectorAddition(const float* a, const float* b, float* c, int n);

void printArray(const float* a, const unsigned int n) {
 QString s = "(";
 unsigned int ii;
 for (ii = 0; ii < n - 1; ++ii)
        s.append(QString::number(a[ii])).append(", ");

  s.append(QString::number(a[ii])).append(")");
  qDebug() << s;
}

int main()
{      
    cout << "Hello World!:" <<endl;
    int  deviceCount = 0;
    int  cudaDevice = 0;
    char cudaDeviceName [100];

    unsigned int N = 50;
    float *a, *b, *c;

    cuInit(0);
    cuDeviceGetCount(&deviceCount);
    cuDeviceGet(&cudaDevice, 0);

    cuDeviceGetName(cudaDeviceName, 100, cudaDevice);
    qDebug() << "Number of devices: " <<  deviceCount;
    qDebug() << "Device name:"        <<  cudaDeviceName;

    a = new float [N];    b = new float [N];    c = new float [N];
    for (unsigned int ii = 0; ii < N; ++ii) {
        a[ii] = qrand();
        b[ii] = qrand();
    }
    // This is the function call in which the kernel is called
     vectorAddition(a,b,c,N);

    qDebug() << "input a:"; printArray(a, N);
    qDebug() << "input b:"; printArray(b, N);
    qDebug() << "output c:"; printArray(c, N);

    if (a) delete a;
    if (b) delete b;
    if (c) delete c;

    return 0;
}

コンパイルしようとすると、「'vectorAddition' への未定義参照」エラーが発生します。vectorAddition.cu問題は、ファイルを に追加しても、Qt Creator がファイルをプロジェクト ツリーに追加しないことだと思いますOTHER_FILES。