[Bf-cycles] Cuda on OSX broken

[Sebastian Röthlisberger]

thx, will try to extract kext manually somehow.

any other ideas welcome ;-)

On 30.10.2012, at 15:16, Jens Verwiebe <info at jensverwiebe.de> wrote:

> Hi
> 
> Here's what someone found in Lux forum fighting a similar problem:
> 
> "Forget about the problem, it was a driver problem.
> I don't know why but the nvidia driver installer didn't really install the newest driver.
> I extracted the kext-files from the installation package manually (304.00.05f02 Web Release) and installed it by 'easy kext drop' app.
> After reboot everything worked fine. Really strange."
> 
> Perhaps try this, i dunno ( and 'am not very interested ) about cuda.
> 
> Jens
> 
> 
> Am 30.10.2012 um 15:10 schrieb Sebastian Röthlisberger <lalli at gmx.net>:
> 
>> Hi there, 
>> 
>> since some weeks (at least) me and Lúthien Merilin are not able to build the CUDA Kernels anymore. Always the same Error.
>> 
>> Code:
>> ptxas info    : Compiling entry function 'kernel_cuda_shader' for 'sm_12'
>> ptxas info    : Used 24 registers, 4300+0 bytes lmem, 24+16 bytes smem, 1152 bytes cmem[0], 5876 bytes cmem[1]
>> ptxas info    : Compiling entry function 'kernel_cuda_tonemap' for 'sm_12'
>> ptxas info    : Used 7 registers, 48+16 bytes smem, 1152 bytes cmem[0], 20 bytes cmem[1]
>> ptxas info    : Compiling entry function 'kernel_cuda_path_trace' for 'sm_12'
>> ptxas(19657) malloc: *** mmap(size=266240) failed (error code=12)
>> *** error: can't allocate region
>> *** set a breakpoint in malloc_error_break to debug
>> ptxas fatal   : Memory allocation failure
>> scons: *** [/blender-build/build/darwin/intern/cycles/kernel/kernel_sm_12.cubin] Error 255
>> scons: building terminated because of errors.
>> 
>> 
>> tried with osx 10.7.5 - XCode 4.2 - 4.5.1 - CUDA Dev Tools + Driver from 4.0, 4.1, 4.2, 5.0.24, 5.0.36
>> then reinstalled the complete system to osx 10.8.5, same error with all possible combinations.
>> 
>> As i remember correctly, the issue began with upgrade CUDA Dev tools to 5.0.24 + GPU Driver 8.0.61 295.30.20f02
>> unfortunately, since the os already upgraded i can't downgrade the GPU Driver. (And i'm not entirely sure it is causing the Problem.)
>> 
>> it seems like an ordinary Out of Memory issue, but the Point is i've got 1.29Gb (from 8) free Memory while this is happening...
>> 
>> tried to find anything about either ptxas Error code 12 or scons Error 255, found nothing.
>> 
>> Strange thing as well is, with CUDA dev tools 4.0 if i start Blender without the kernels it's able to build it, without error..
>> 
>> So my questions: 
>> 
>> Is there something wrong in the sourcefiles?
>> Does it seem possible that this GPU Driver is causing the Error? 
>> Is there a difference from building from scons to building Blender "internally"?
>> Anyone able to build CUDA Kernels on OSX? if yes, which GPU Driver Version?
>> 
>> thanks for any idea
>> 
>> bashi
>> 
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> 
> _____________________________________
> 
> Jens Verwiebe
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> 
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