Re: CUDA wrapper

[Seth Shelnutt]

OK, I've fixed a few mistakes in the .spec file and we are getting further,
but I tried debugging the output but I am not sure what it all means.

zerix01@DeepThought:~/.wine/drive_c/Program Files/Folding@home
/Folding@home-gpu$ winedbg [e-mail]
WineDbg starting on pid 0024
start_process () at /media/md0/wine/wine/dlls/kernel32/process.c:904
0x7b877d02 start_process+0xc2
[/media/md0/wine/wine/dlls/kernel32/process.c:904] in kernel32: movl
%esi,0x0(%esp)
904 ExitThread( entry( peb ) );
Wine-dbg>n
fixme:d3d:IWineD3DImpl_FillGLCaps OpenGL implementation supports 32 vertex
samplers and 32 total samplers
fixme:d3d:IWineD3DImpl_FillGLCaps Expected vertex samplers +
MAX_TEXTURES(=8) > combined_samplers
fixme:win:EnumDisplayDevicesW ((null),0,0x33f40c,0x00000000), stub!
err:seh:raise_exception Unhandled exception code c0000005 flags 0 addr
0xf7facaaf
Invalid address (0x7b877d07 start_process+0xc7) for breakpoint 0, disabling
it
Process of pid=0024 has terminated
Wine-dbg>

I believe the key line is Invalid address (0x7b877d07 start_process+0xc7)
for breakpoint 0, disabling it . But what exactly that means I am not sure,
I mean I don't know which function it is saying is missing or messed up.
Also from the documentation and from the nvidia forums it seems that both
libraries are exactly the same, and it is said that there is no difference
in writing a program for Linux vs. Windows, but I assume that is minus the
direct3d functions, which I know the folding at home program doesn't use.

On Thu, Jul 10, 2008 at 12:01 AM, Stefan Dösinger 
wrote:
> Wine links against cudart.dll.so from /usr/lib/ or wherever it is. You
> don't have to put it in C:\windows... .
>
> You can put a TRACE or ERR into the cudaMalloc(or whatever) function
> implementation in your code to write a message to check if the functions are
> properly called. I suspect they are, and that libcudart.so writes those
> errors. This would then mean that the Windows and Linux cuda libraries are
> different, and some features are missing in the Linux version. If that is
> true, the only thing you can do is to contact Nvidia and ask them for help
>
> *From:* [e-mail] [mailto:
> [e-mail]] *On Behalf Of *Seth Shelnutt
> *Sent:* Wednesday, July 09, 2008 7:23 PM
> *To:* Juan Lang; [e-mail]
> *Subject:* Re: CUDA wrapper
>
> Well at least it compiled, but it isn't working. We are still getting the
> message that the function isn't implemented.
>
> Initializing Nvidia gpu library
> cudaMalloc CUDAStream::Allocate failed feature is not yet implemented
>
> Now both cudamalloc and all four cuda stream's, cudaStreamCreate, Destroy,
> Query and Synchronize were implemented.
> I thought maybe it was because in the spec file I had the cudaStream's as
> pointers (ptr) so I switched them to long but ti didn't make a difference.
> Originally the argument was "stream" but I can't get any argument but ptr
> and long to pass the winegcc for spec files.
>
> http://shelnutt.twomurs.com/patches/cuda/cuda.dll.spec
>
> Does wine need to somehow be made aware of the presence of the
> cudart.dll.so file? We tried putting it in both the system32 and the lib
> folder but it seems also that maybe WINE needs to be made aware of it?