[CRIU] Checkpointing a GPU process

Pavel Emelyanov xemul at parallels.com
Wed Oct 9 01:59:32 PDT 2013


On 10/07/2013 11:02 PM, Colin Blair wrote:
> Greetings,
> 
> I am working on a way to checkpoint a GPU process with CRIU. Is there a flag that makes CRIU wait 
> until a process is complete before dumping? 

No, there's no such thing currently.

> I have an existing program that needs a signal to perform the GPU process checkpoint. 

I doubt this is easily possible, since during the dump the target task should be stopped.

> This program needs to hook into CRIU. This currently works with BLCR using SIGUSR1 and SIGUSR2 but I
> would like to modify it to work with CRIU. Thank you.

Can you shed more light on this -- what kind of context do you want to dump? Can it
be implemented as a plug-in for criu?

> C. Blair
> 
> 
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