Is there a way to reset my GPU?

Open discussion for MAGMA library (Matrix Algebra on GPU and Multicore Architectures)

Is there a way to reset my GPU?

Postby fletchjp » Mon Jan 31, 2011 6:41 pm

I have been digging around on the web and found this quote:

* Memory on the Nvidia device is not necessarily cleared or reset between kernel calls.
* Program defensively [checking return and error codes] and be careful with cudaMemcpy(dest, src, nbytes, cudaMemcpyDeviceToHost).
* cudaMalloc( void** , nbytes) only allocates memory, and the allocations may be repeatable and consistent with respect to memory addressing and memory contents between kernel calls.
* The device is not running an operating system with all the associated kernel memory page movement so memory tends to retain state.

Source: ... -CUDA.html

I would really like to be able to know more of what is going on on my GPU (which incidentally is also running a display).

The only way I have seen suggested to get a known state without rebooting is to turn off X, which is not really practical.

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