鏈接Qt + CUDA +外部庫

Question

我寫了一個PRO文件來爲我的CUDA應用程序在linux下生成一個GUI（已經在windows下編譯，現在將相同的組件移植到ubuntu 1404）。

我已經第一次編譯了一個輔助函數庫「mylib.a」，並將其與我的應用程序「myapp.cu」連接起來，並測試它編譯並在圖片中沒有Qt的情況下很好地運行（通過nsight eclipse完成）。

對於使用Qt構建我已經生成以下文件PRO：

############################# 
# basic PRO file for qmake 
############################## 


# QT libs to use 
QT  += core gui 
greaterThan(QT_MAJOR_VERSION, 4): QT += widgets 
########################################## 
# QT basic files 
########################################## 
SOURCES+=main.cpp 
SOURCES+=myGUI.cpp 

HEADERS += myGUI.h 
FORMS += myGUI.ui 

# Project dir and outputs 
PROJECT_DIR = $$system(pwd) 
OBJECTS_DIR = $$PROJECT_DIR/Obj 
DESTDIR = ../bin 

########################################## 
# CUDA source files 
########################################## 
CUDA_SOURCES += myApp.cu 
CUDA_SOURCES += kernel1.cu 
CUDA_SOURCES += kernel2.cu 

########################################## 
# CUDA related components 
########################################## 

CUDA_DIR = /usr/local/cuda 
CUDA_ARCH = sm_35 
NVCCFLAGS = --compiler-options -fno-strict-aliasing -use_fast_math --ptxas-options=-v 


########################################## 
# include paths 
########################################## 
# CUDA 
INCLUDEPATH += $$CUDA_DIR/include 


# Additional dependencies 

INCLUDEPATH += /usr/include/ 

########################################## 
# library directories 
########################################## 
QMAKE_LIBDIR += $$CUDA_DIR/lib64 
QMAKE_LIBDIR += $$CUDA_DIR/samples/common/lib 


########################################## 
# LIBS 
########################################## 

LIBS += -lnvToolsExt 
LIBS += -lopengl 
#libcudart_static 
#LIBS += -lcudart_static 
LIBS += -lcuda 
LIBS += -lcudart 
LIBS += -lGL 
# My library is added here 
LIBS += -lmyLib 

# join the includes in a line 
CUDA_INC = $$join(INCLUDEPATH,' -I','-I',' ') 


########################################## 
# Extra compiler configuration for CUDA 
########################################## 

cuda.input = CUDA_SOURCES 
cuda.output = ${OBJECTS_DIR}${QMAKE_FILE_BASE}.o 

cuda.commands = $$CUDA_DIR/bin/nvcc $$CUDA_DEFINES -m64 -g -arch=$$CUDA_ARCH -c $$NVCCFLAGS $$CUDA_INC $$LIBS ${QMAKE_FILE_NAME} -c -o ${QMAKE_FILE_OUT} 

cuda.dependency_type = TYPE_C 
cuda.depend_command = $$CUDA_DIR/bin/nvcc $$CUDA_DEFINES -g -M $$CUDA_INC $$NVCCFLAGS ${QMAKE_FILE_NAME} 
# Tell Qt that we want add more stuff to the Makefile 
QMAKE_EXTRA_UNIX_COMPILERS += cuda 

Answer 1

在你的.pro文件中嘗試這些。我用它鏈接到Linux上的CUDA成功：

# Define output directories 

CONFIG(release, debug|release): CUDA_OBJECTS_DIR = release/cuda 
else: CUDA_OBJECTS_DIR = debug/cuda 


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

# CUDA settings <-- may change depending on your system 
CUDA_SOURCES += vectorAddition.cu 


unix{ 
    CUDA_SDK = "/usr/local/cuda-5.5/" # Path to cuda SDK install 
    CUDA_DIR = "/usr/local/cuda-5.5/" # Path to cuda toolkit install 
} 

unix: SYSTEM_NAME = unix 

SYSTEM_TYPE = 32   # '32' or '64', depending on your system 
CUDA_ARCH = sm_30   # Type of CUDA architecture, for example 'compute_10', 'compute_11', 'sm_10' 
NVCC_OPTIONS = --use_fast_math 

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

# library directories 
unix:{ 
    QMAKE_LIBDIR += $$CUDA_DIR/lib 
} 


# Add the necessary libraries 
unix: 
{ 
    CUDA_LIBS = -lcuda -lcudart 
    # The following makes sure all path names (which often include spaces) are put between quotation marks 
    CUDA_INC = $$join(INCLUDEPATH,'" -I"','-I"','"') 
    NVCC_LIBS = $$join(CUDA_LIBS,' -l','-l', '') 
    LIBS += $$CUDA_LIBS 
} 

# Configuration of the Cuda compiler 
CONFIG(debug, debug|release) { 
    # Debug mode 
    cuda_d.input = CUDA_SOURCES 
    cuda_d.output = $$CUDA_OBJECTS_DIR/${QMAKE_FILE_BASE}_cuda.o 

    unix: cuda_d.commands = $$CUDA_DIR/bin/nvcc -D_DEBUG $$NVCC_OPTIONS $$CUDA_INC $$NVCC_LIBS --machine $$SYSTEM_TYPE -arch=$$CUDA_ARCH -c -o ${QMAKE_FILE_OUT} ${QMAKE_FILE_NAME} 

    cuda_d.dependency_type = TYPE_C 
    QMAKE_EXTRA_COMPILERS += cuda_d 
} 
else { 
    # Release mode 
    cuda.input = CUDA_SOURCES 
    cuda.output = $$CUDA_OBJECTS_DIR/${QMAKE_FILE_BASE}_cuda.o 

    unix: cuda.commands = $$CUDA_DIR/bin/nvcc $$NVCC_OPTIONS $$CUDA_INC $$NVCC_LIBS --machine $$SYSTEM_TYPE -arch=$$CUDA_ARCH -c -o ${QMAKE_FILE_OUT} ${QMAKE_FILE_NAME} 

    cuda.dependency_type = TYPE_C 
    QMAKE_EXTRA_COMPILERS += cuda 
}