Re: [pcre-dev] opencl

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Autor: james jones
Data:  
Para: Zoltán Herczeg
CC: pcre-dev
Assunto: Re: [pcre-dev] opencl
I have been able to port and compile the one below but I am having a little
trouble with getting strings from ram to the memory on the graphics.
Getting a lot memory access error right before a seg fault. I am just doing
it wrong and need to make sure I am copying the array correctly. I have not
looked at it in about two weeks. Will pick it up again over the weekend.



http://www.cse.yorku.ca/~oz/regex.bun

On Wed, Dec 5, 2012 at 3:16 PM, Zoltán Herczeg <hzmester@???> wrote:

> Hi,
>
> I don't think so. In WebKit we did some OpenCL optimizations, but I am not
> sure the general concept of a backtracking, NFA based engine is suitable
> for OpenCL. At least the whole engine is surely way too big. Perhaps
> something like the JIT compiler could work, just generating C like code for
> OpenCL. But uploading the input could be too expensive, and searching only
> the first match is difficult, since I am not sure that other running
> kernels could be stopped when the first occurrence is found. Perhaps a DFA
> based engine is better for such purpose, but the first occurrence issues
> are still similar. OpenCL is a powerful tool, but I am not sure this is an
> ideal use case for it.
>
> Regards,
> Zoltan
>
> james jones <james.voip+kernel@???> írta:
> >Has anyone gotten PCRE ported for OpenCL or Cuda?>
> >
> -James>
> -- >
> ## List details at https://lists.exim.org/mailman/listinfo/pcre-dev >
>
>