Strange failure

sylvain.meunier · April 7, 2009, 12:24pm

Hello,

i have a little problem with cudaGLRegisterBufferObject.

When i try to register a “big” and single pixel buffer object (102410244float), cudaGLRegisterBufferObject doesn’t return cudaSuccess but cudaErrorInvalidValue. However if i use a smaller pixel buffer object (5125124float), there is no problem, it returns cudaSuccess.

I am working on a 8400GS (128mo) with the nVidia driver 180.44 and Cuda 2.1.

Do you have any ideas ?

Thx

Sylvain

sylvain.meunier · April 9, 2009, 8:06am

Anyone ? :unsure:

YDD · April 9, 2009, 5:34pm

Is that card running your display as well? If so, how much free memory does it really have?

sylvain.meunier · April 10, 2009, 6:54am

Thanks for your reply. How can i check the free memory ?

tmurray · April 10, 2009, 7:03am

use the cuMemGetInfo function–it’s a driver API call, but assuming you’ve created a context before calling it, it will work fine from the runtime API. to ensure that a context exists, prefix the call to cuMemGetInfo with cudaFree(0).