CUDA 4.0 and VS 2010 issue

Accelerated Computing CUDA CUDA Programming and Performance
1

I’m using the command prompt to try and run examples from CUDA by Example. I’m using nvcc 4.0 and the VS 2010 compiler and keep getting the following error:

Microsoft SDKs\Windows\v7.0A\include\objbase.h<239>: error: identifier “IUnknown” is undefined

As well as the following warning:

Microsoft SDKs\Windows\v7.0A\include\objbase.h<239>: warning: expression has no effect

Any help with this issue would be greatly appreciated.

Also, as a breif side-question, how do I change my default nvcc compiler from 3.2 to 4.0 in command prompt?

Thanks!

2

Hello there… you cannot use directly VC++ 2010 to compile CUDA kernel, you should use VC++ 2008 compiler. This restriction is applied to CUDA 3.2 and CUDA 4.0 (if I remember correctly).

3

Sorry my mistake: #2782 » Blog Archive » Visual Studio 2010 and CUDA CUDA 4.0 doesn’t require VC 2008 anymore.

4

Hi there,

did you solve this problem?

I have the same error and cannot figure out a work around.

Cheers,

5

I think you need vs 2010 professional… are you trying to use the express edition ?

6

Hey,

I am using the peofessional version with the 7.0a win SDK and still get the same error!

7

Finding the same error… Hey someone can fix this problem… Programmers ??

8

I am also facing the same problem. Anybody who has resolved this problem, please provide the solution.

Thanks.