Kernel error

[garciav]

Hi,

I know that my kernel crash for the moment. I’d like to detect when my kernel crash to preperly free the memory. For example, the cudaMalloc returns a value indicating if the allocation is OK or not.
Is there a way to detect this for kernels?

Another question. Just after the kernel call, I free the memory. If my kernel crash, do you think that the memory has been freed?

Thanks,
Vincent

[MisterAnderson42]

I know that my kernel crash for the moment. I’d like to detect when my kernel crash to preperly free the memory. For example, the cudaMalloc returns a value indicating if the allocation is OK or not.

Is there a way to detect this for kernels?

Call cudaThreadSynchronize() to ensure that the kernel call is complete, then call cudaGetLastError().

Another question. Just after the kernel call, I free the memory. If my kernel crash, do you think that  the memory has been freed?

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Memory is not freed immediately after a kernel crash. If your host application exits (or crashes), the memory will be freed then.