Feedback/questions from today's call

[Bernard Traversat]

Gerard,

OpenJDK project participation is open. You don't need a special invite to participate. Everyone is welcome to subscribe and participate. We mentioned
this project to NVidia as well as other potential interested Java community members.

Cheers,

B.

On Nov 14, 2012, at 11:45 AM, Gerard Ziemski <gerard.ziemski at oracle.com> wrote:

> hi all,
> 
> Forgive me if I'm addressing the elephant in the room, but wouldn't it have been useful to invite NVIDIA to participate in these calls? It seems to me that today's discussion covered a lot of general topics that would apply to the other GPU team and even the platform specific questions to AMD folks would benefit the project if answered from the NVIDIA team at the same time.
> 
> A couple of general questions:
> 
> #1 What kind of performance counters does the GPU provide that could possibly help the JVM to figure out the most optimal implementation when compiling the Java code for it? Is it possible to have some sort of feedback loop from GPU telling JVM how well its code is executing?
> 
> #2 Is it possible to debug/analyze code executing on GPU? Can it be exposed in Java debugger in any way?
> 
> #3 Can a GPU program crash? What are the examples that would cause it crash and how is it handled?
> 
> #4 For a  client system, which I will define as a system where a process is just one of many other processes running concurrently that may want to use the same resources (ie. for GPU other apps such as a window manager, browser), or even the same process that uses the GPU for computation and also for rendering visuals (ie. JavaFX which uses GPU to render its UI), is it a concern to possibly starve other parts of the system by JVM if it starts using the GPU aggressively?
> 
> 
> cheers
>