Issues compiling Win-32 project with CUDA 5.5 64 bit

Accelerated Computing CUDA CUDA Setup and Installation
1

Hi,

I’m running a Win 7 64-bit with a NVidia Quadro 4000 (driver 320.57). I have installed Cuda Toolkit version 5.5 64-bit version, since I was unable to install the 32-bit version.

The project I’m compiling is osgPPU, and I receive hundreds of error messages with error-code C2719 connected with surface_functions.h in the cuda library (see error message below). The project is configured by CMake.

Any ideas of how to resolve this problem?

Kind regards
Patrik

16>ClCompile:
16>  kernel.cu_cudakernel_generated.cpp
16>c:\program files (x86)\microsoft visual studio 10.0\vc\include\codeanalysis\sourceannotations.h(27): error C2371: 'size_t' : redefinition; different basic types
16>          predefined C++ types (compiler internal)(19) : see declaration of 'size_t'
16>c:/Program Files (x86)/Microsoft Visual Studio 10.0/VC/bin/../../VC/INCLUDE\stdlib.h(342): error C4235: nonstandard extension used : '__unaligned' keyword not supported on this architecture
16>c:\program files\nvidia gpu computing toolkit\cuda\v5.5\include\surface_functions.h(2642): error C2719: 'val': formal parameter with __declspec(align('8')) won't be aligned
...
2

As the error mentions, it seems you’re redefining size_t. It also might be related that you need to compile to a higher SM architecture… by default the templates compile for SM_10, change the SM to 2.0/3.0/3.5 as appropriate and retry your compilation… that itself might fix all the problems.

3

Thanks, you help me to find where to set the flags for the CUDA.

The main issue appear to be that the machine was not set, I added the flag -m=32 which solved the problems.

Thank you for your help!

Best regards
Patrik

4

Yes, a switch from 32 or 64 bit architecture would be exactly why you’d get mismatch errors like those, glad you got it fixed!