[webkit-dev] Is there a plan for supporting multi-process and WebCL in webkit

Filip Pizlo fpizlo at apple.com
Wed Apr 10 00:37:31 PDT 2013

Why not infer ParallelArrays automatically?  What is the specific reason for requiring a new type?


On Apr 10, 2013, at 12:16 AM, "Pozdnyakov, Mikhail" <mikhail.pozdnyakov at intel.com> wrote:

> Hi,
> As far as I'm concerned WebCL would have serious security issues as it lets web app to provide OpenCL target code (which is really unsafe),
> besides its using requires OpenCL knowledge and hence might be too complex for a web developer.
> Good alternative could be enabling parallel calculations inside ECMAScript itself. For instance providing ParallelArray interface for map-reduce
> calculations, there is actually a proposal already at http://wiki.ecmascript.org/doku.php?id=strawman:data_parallelism .
> BR,
> Mikhail
> ________________________________________
> From: webkit-dev-bounces at lists.webkit.org [webkit-dev-bounces at lists.webkit.org] on behalf of Jer Noble [jer.noble at apple.com]
> Sent: Tuesday, April 09, 2013 11:23 PM
> To: Benjamin Poulain
> Cc: webkit-dev at lists.webkit.org
> Subject: Re: [webkit-dev] Is there a plan for supporting multi-process and WebCL in webkit
> On Apr 9, 2013, at 10:47 AM, Benjamin Poulain <benjamin at webkit.org<mailto:benjamin at webkit.org>> wrote:
> I am very curious about the source of interest in OpenCL on browser. While OpenCL is a great technology, I have the feeling it is not ready for the web.
> What kind of applications do you foresee being powered by OpenCL on the Web?
> I can imagine some use of CPU based kernels for the web (for image manipulation for example). But I have a hard time seeing how adding full support of OpenCL would not be shooting ourself in the foot at this point. That may change in the future when GPU hardware converges…
> There has also been interest in the WebAudio WG about using OpenCL/WebCL for custom audio processing.  There are significant performance issues involved with doing custom audio processing in JavaScript, even in a Worker thread, but WebCL may offer performance and memory characteristics which would couple well with the requirements of realtime audio threads.
> -Jer
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