It sounds like you are not doing real-time rendering. Please correct me if
I’m wrong.  This implies that blender uses the CPU for rendering and not the
GPU.  The DMTCP extension I was referring to earlier is specifically targeted to
real-time rendering but should be able to handle this. If not, it can be
fixed/extended further.

Is there an example that you can point me to that is similar to what you are
doing? And the steps to run that? I have used some simple examples in the past
to start a rendering job from the command-line.

> On Mar 15, 2015, at 1:56 PM, Dave Coventry <dgcoven...@gmail.com> wrote:
> 
> Hi Rohan,
> 
> On 15 March 2015 at 17:18, Rohan Garg <rohg...@ccs.neu.edu> wrote:
>> Hi Dave,
>> 
>> We have been trying to extend DMTCP for checkpointing 3D graphics but it’s
>> completely experimental right now. We have managed to checkpoint blender for
>> some limited use cases.
>> 
>> I am not sure if VNC, by default, supports running applications that use 
>> OpenGL,
>> so that might not work even without DMTCP. Some commercial versions claim
>> to support it but I haven’t been able to verify that.
>> 
>> Could you give a little more details about your use-case? What command line
>> options you use to start blender?
> 
> I'm trying to 'bake' the fluid dynamics calculations for a simulation
> of fluid being rotated in a drum. The calculations take something over
> 48 hours (I have yet to see them concluded), and my power supply is
> erratic.
> 
> I would like to be able to resume the calculations on resumption of
> power, rather than having to start again from scratch.
> 
> I don't use any command line options at the moment. I believe there is
> a way to do the bake headless, but I get errors. I might look at that,
> though.
> 
> 
>> What version of OpenGL library are you using?
> 
> OpenGL version string: 3.0 Mesa 10.1.3


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