[Hedge] Dealing with heterogeneous structures

[Andreas Kloeckner]

Dear Peter, 

On Wed, 8 Jun 2011 14:11:43 +0200, Peter17 <peter017 at gmail.com> wrote:
> I cannot publish my code for now, but I am modifying the
> elastodynamics operator so that it mimics the behavior of my code. I
> will upload it when it is ready.
> 
> I have updated Hedge and pyCuda yesterday. I now use CUDA toolkit
> version 4. Some examples are not working anymore in CUDA.
> 
> For "examples/maxwell/maxwell-2d.py", the error is:
> pycuda._driver.LogicError: cuFuncSetBlockShape failed: invalid value
> 
> "print block" prints: (512, 3, 0)
> 
> I use a Tesla C1060.

Can you try with the 'cuda_no_plan' debug flag?

> PS: Do you plan to add an OpenCL backend to Hedge? Do difficult do you
> think this would be?

I'm planning on doing this later in the month--the plan is that this
will allow us to get rid of both the current CPU and CUDA backends,
while ideally improving performance for both.

(That's also why I'm reluctant to invest much into the existing CUDA
code at the moment.)

Andreas
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