Using CUDA timing functions in .C files?

Accelerated Computing CUDA CUDA Programming and Performance
1

Hello all,

I’m a relative newbie at GPGPU program, and have managed to compile the simple examples.

I want to use the cutil.h functions to time the performance difference between a regular C function and the CUDA version I’ve developed, using the cuda timer functions (cutStartTimer, cutResetTimer etc).

However, simply including the cutil.h header file in a .C file produces many errors when I want to compile, such as,

C:\Program Files\NVIDIA Corporation\NVIDIA CUDA SDK\common\inc\cutil.h(122) : error C2143: syntax error : missing ‘{’ before ‘__stdcall’
C:\Program Files\NVIDIA Corporation\NVIDIA CUDA SDK\common\inc\cutil.h(124) : error C2146: syntax error : missing ‘)’ before identifier ‘verbose’
C:\Program Files\NVIDIA Corporation\NVIDIA CUDA SDK\common\inc\cutil.h(124) : error C2081: ‘bool’ : name in formal parameter list illegal
C:\Program Files\NVIDIA Corporation\NVIDIA CUDA SDK\common\inc\cutil.h(124) : error C2061: syntax error : identifier ‘verbose’

Other files such as cuda.h and cuda_runtime.h produce similar syntax errors.

What am I missing, in my project file/environment? I’ve tried switching compilers between Compile as C Code, Compile As C++ and using the CUDA tool and that doesn’t work.

I’m using Visual Studio Express 2005 and can compile (and run in EMU mode) the SDK examples without a problem.

Sorry if it’s a bit vague. Thank you.

2

I have done this the same with what you did .But failed.And then i use it in .cu file without launch anything about cuda but something about timer.

3

I also had this problem once. A long time ago. this looks like your paths are not pointing to the right directories.

Or you’re not including the right things.

4

I’ve gotten around it by putting all the CUDA timing code in a .cu file, which calls both the C version and the CUDA version.

Clunky, but it works…

Oh well. I will try to experiment with the include orders when I get free time (or see if I get the same errors using gcc instead of VS).