一直在尝试编写并行版本的AES来处理CUDA。 在最后完成最后几个CUDA问题之后，我开始进行编译测试以确保事情是否有效。但是我绕道而行。
1>------ Build started: Project: AES-CUDA, Configuration: Debug Win32 ------
1>Build started 05/17/2011 3:53:27 AM.
1>InitializeBuildStatus:
1> Touching "Debug\AES-CUDA.unsuccessfulbuild".
1>CudaBuild:
1> Compiling CUDA source file AES.cu...
1>
1> C:\Users\*\Documents\Visual Studio 2010\Projects\AES-CUDA\AES-CUDA>"C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v4.0\bin\nvcc.exe" -gencode=arch=compute_20,code=\"sm_20,compute_20\" --use-local-env --cl-version 2010 -ccbin "C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\bin" -I"C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v4.0\include" -G0 --keep-dir "Debug" -maxrregcount=0 --machine 32 --compile -D_NEXUS_DEBUG -g -Xcompiler "/EHsc /nologo /Od /Zi /MDd " -o "Debug\AES.cu.obj" "C:\Users\*\Documents\Visual Studio 2010\Projects\AES-CUDA\AES-CUDA\AES.cu"
1> AES.cu
1> tmpxft_00001bd8_00000000-0_AES.cudafe1.gpu
1> tmpxft_00001bd8_00000000-5_AES.cudafe2.gpu
1> AES.cu
1> tmpxft_00001bd8_00000000-0_AES.cudafe1.cpp
1> tmpxft_00001bd8_00000000-11_AES.ii
1> Deleting file "tmpxft_00001bd8_00000000-6_AES.cpp3.o".
1>ClCompile:
1> main.cpp
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(12): error C2065: 'threadIdx' : undeclared identifier
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(12): error C2228: left of '.x' must have class/struct/union
1> type is ''unknown-type''
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(12): error C2065: 'threadIdx' : undeclared identifier
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(12): error C2228: left of '.x' must have class/struct/union
1> type is ''unknown-type''
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(12): error C2065: 'threadIdx' : undeclared identifier
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(12): error C2228: left of '.x' must have class/struct/union
1> type is ''unknown-type''
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(12): error C2065: 'threadIdx' : undeclared identifier
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(12): error C2228: left of '.x' must have class/struct/union
1> type is ''unknown-type''
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(55): error C2065: 'threadIdx' : undeclared identifier
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(55): error C2228: left of '.x' must have class/struct/union
1> type is ''unknown-type''
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(55): error C2065: 'threadIdx' : undeclared identifier
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(55): error C2228: left of '.x' must have class/struct/union
1> type is ''unknown-type''
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(55): error C2065: 'threadIdx' : undeclared identifier
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(55): error C2228: left of '.x' must have class/struct/union
1> type is ''unknown-type''
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(55): error C2065: 'threadIdx' : undeclared identifier
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(55): error C2228: left of '.x' must have class/struct/union
1> type is ''unknown-type''
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(60): error C2065: 'threadIdx' : undeclared identifier
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(60): error C2228: left of '.x' must have class/struct/union
1> type is ''unknown-type''
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(64): error C2065: 'threadIdx' : undeclared identifier
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(64): error C2228: left of '.x' must have class/struct/union
1> type is ''unknown-type''
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(66): error C2065: 'threadIdx' : undeclared identifier
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(66): error C2228: left of '.x' must have class/struct/union
1> type is ''unknown-type''
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(66): error C2065: 'threadIdx' : undeclared identifier
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(66): error C2228: left of '.x' must have class/struct/union
1> type is ''unknown-type''
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(67): error C2065: 'threadIdx' : undeclared identifier
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(67): error C2228: left of '.x' must have class/struct/union
1> type is ''unknown-type''
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(67): error C2065: 'threadIdx' : undeclared identifier
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(67): error C2228: left of '.x' must have class/struct/union
1> type is ''unknown-type''
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(68): error C2065: 'threadIdx' : undeclared identifier
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(68): error C2228: left of '.x' must have class/struct/union
1> type is ''unknown-type''
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(68): error C2065: 'threadIdx' : undeclared identifier
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(68): error C2228: left of '.x' must have class/struct/union
1> type is ''unknown-type''
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(69): error C2065: 'threadIdx' : undeclared identifier
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(69): error C2228: left of '.x' must have class/struct/union
1> type is ''unknown-type''
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(79): error C2065: 'threadIdx' : undeclared identifier
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(79): error C2228: left of '.x' must have class/struct/union
1> type is ''unknown-type''
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(80): error C2065: 'threadIdx' : undeclared identifier
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(80): error C2228: left of '.x' must have class/struct/union
1> type is ''unknown-type''
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(81): error C2065: 'threadIdx' : undeclared identifier
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(81): error C2228: left of '.x' must have class/struct/union
1> type is ''unknown-type''
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(82): error C2065: 'threadIdx' : undeclared identifier
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(82): error C2228: left of '.x' must have class/struct/union
1> type is ''unknown-type''
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(84): error C2065: 'threadIdx' : undeclared identifier
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(84): error C2228: left of '.x' must have class/struct/union
1> type is ''unknown-type''
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(85): error C2065: 'threadIdx' : undeclared identifier
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(85): error C2228: left of '.x' must have class/struct/union
1> type is ''unknown-type''
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(86): error C2065: 'threadIdx' : undeclared identifier
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(86): error C2228: left of '.x' must have class/struct/union
1> type is ''unknown-type''
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(87): error C2065: 'threadIdx' : undeclared identifier
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(87): error C2228: left of '.x' must have class/struct/union
1> type is ''unknown-type''
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(93): error C2065: 'threadIdx' : undeclared identifier
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(93): error C2228: left of '.x' must have class/struct/union
1> type is ''unknown-type''
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(93): error C2065: 'threadIdx' : undeclared identifier
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(93): error C2228: left of '.x' must have class/struct/union
1> type is ''unknown-type''
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(93): error C2065: 'threadIdx' : undeclared identifier
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(93): error C2228: left of '.x' must have class/struct/union
1> type is ''unknown-type''
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(93): error C2065: 'threadIdx' : undeclared identifier
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(93): error C2228: left of '.x' must have class/struct/union
1> type is ''unknown-type''
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(98): error C2065: 'threadIdx' : undeclared identifier
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(98): error C2228: left of '.x' must have class/struct/union
1> type is ''unknown-type''
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(102): error C2065: 'threadIdx' : undeclared identifier
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(102): error C2228: left of '.x' must have class/struct/union
1> type is ''unknown-type''
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(104): error C2065: 'threadIdx' : undeclared identifier
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(104): error C2228: left of '.x' must have class/struct/union
1> type is ''unknown-type''
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(104): error C2065: 'threadIdx' : undeclared identifier
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(104): error C2228: left of '.x' must have class/struct/union
1> type is ''unknown-type''
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(105): error C2065: 'threadIdx' : undeclared identifier
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(105): error C2228: left of '.x' must have class/struct/union
1> type is ''unknown-type''
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(105): error C2065: 'threadIdx' : undeclared identifier
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(105): error C2228: left of '.x' must have class/struct/union
1> type is ''unknown-type''
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(106): error C2065: 'threadIdx' : undeclared identifier
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(106): error C2228: left of '.x' must have class/struct/union
1> type is ''unknown-type''
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(106): error C2065: 'threadIdx' : undeclared identifier
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(106): error C2228: left of '.x' must have class/struct/union
1> type is ''unknown-type''
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(107): error C2065: 'threadIdx' : undeclared identifier
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(107): error C2228: left of '.x' must have class/struct/union
1> type is ''unknown-type''
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(117): error C2065: 'threadIdx' : undeclared identifier
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(117): error C2228: left of '.x' must have class/struct/union
1> type is ''unknown-type''
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(118): error C2065: 'threadIdx' : undeclared identifier
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(118): error C2228: left of '.x' must have class/struct/union
1> type is ''unknown-type''
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(119): error C2065: 'threadIdx' : undeclared identifier
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(119): error C2228: left of '.x' must have class/struct/union
1> type is ''unknown-type''
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(120): error C2065: 'threadIdx' : undeclared identifier
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(120): error C2228: left of '.x' must have class/struct/union
1> type is ''unknown-type''
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(122): error C2065: 'threadIdx' : undeclared identifier
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(122): error C2228: left of '.x' must have class/struct/union
1> type is ''unknown-type''
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(123): error C2065: 'threadIdx' : undeclared identifier
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(123): error C2228: left of '.x' must have class/struct/union
1> type is ''unknown-type''
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(124): error C2065: 'threadIdx' : undeclared identifier
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(124): error C2228: left of '.x' must have class/struct/union
1> type is ''unknown-type''
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(125): error C2065: 'threadIdx' : undeclared identifier
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(125): error C2228: left of '.x' must have class/struct/union
1> type is ''unknown-type''
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(136): error C2664: 'cudaMallocPitch' : cannot convert parameter 1 from 'unsigned char **' to 'void **'
1> Types pointed to are unrelated; conversion requires reinterpret_cast, C-style cast or function-style cast
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(142): error C2664: 'cudaMallocPitch' : cannot convert parameter 1 from 'unsigned char **' to 'void **'
1> Types pointed to are unrelated; conversion requires reinterpret_cast, C-style cast or function-style cast
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(147): error C2664: 'cudaMalloc' : cannot convert parameter 1 from 'unsigned char **' to 'void **'
1> Types pointed to are unrelated; conversion requires reinterpret_cast, C-style cast or function-style cast
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(170): error C2059: syntax error : '<'
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(175): error C2059: syntax error : '<'
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(176): error C2059: syntax error : '<'
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(177): error C2059: syntax error : '<'
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(178): error C2059: syntax error : '<'
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(182): error C2059: syntax error : '<'
1>c:\users\*\documents\visual studio 2010\projects\aes-cuda\aes-cuda\aes.cu(182): fatal error C1003: error count exceeds 100; stopping compilation
1>
1>Build FAILED.
1>
1>Time Elapsed 00:00:02.56
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========
我已经将正确的CUDA 4.0构建自定义项附加到我的VS项目中，您可以从构建日志中看到。但是，C ++编译器正在重新解释CUDA源文件。任何想法都表示赞赏。
答案 0 :(得分：3)
看来你从main.cpp中包含了aes.cu，这通常不是一个好主意。如果您需要混合主机和设备代码，通常应该使用nvcc编译的.cu文件。如果您具有应从主机和设备代码调用的函数，则可以将它们声明为：
__host__ __device__ int foo() { return do_something(); }
但请注意，在这些函数中，您无法使用特定于设备的构造，如threadIdx.x。如果您在设备上运行时需要使用特定于设备的构造的__device__ __host__函数，则可以将该代码包装在#ifdef __CUDA_ARCH__中：
__host__ __device__ int sharedFunction {
#ifdef __CUDA_ARCH__
return threadIdx.x * do_something();
#else
return do_something_on_the_cpu();
#endif
}