Software:River Trail (JavaScript engine)

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Short description: JavaScript engine developed by Intel, which allows parallel processing
River Trail
Developer(s)Intel
Websitegithub.com/IntelLabs/RiverTrail

River Trail (also known as Parallel JavaScript) is an open-source software engine designed by Intel for executing JavaScript code using parallel computing on multi-core processors.

River Trail was announced at the Intel Developer Forum in September 2011, and demonstrated using a Firefox extension developed by Intel. Brendan Eich, the original author of JavaScript, promised that he would promote River Trail within Ecma International, saying "The demo shows a 15x speedup over serial JavaScript. It lights up the ridiculously parallel hardware in modern CPUs and GPUs, for audio, video, image processing, automated voice response, computer vision, 3D gaming, etc. – all written in memory-safe, clean, functional JavaScript, without threads and their data races and deadlocks."[1] Because River Trail leverages Intel's OpenCL SDK[2] it can exploit multiple CPU cores as well as data parallel instructions (ex. AVX, SSE) and the speedup can be greater than the CPU core count would imply.

A native implementation of River Trail in Firefox's SpiderMonkey JavaScript engine was announced in September 2012[3] and was added to nightly Firefox builds in April 2013.[4] By January 2015, the code had been removed from Firefox.[5][6]

Operation

To use the engine scripts uses a special API, based on three pillars: a type called ParallelArray, several methods of Prototype of ParallelArray, and elementary functions.[7]

References

  1. ↑ Cade Metz (17 September 2011). "Intel extends JavaScript for parallel programming". The Register. https://www.theregister.co.uk/2011/09/17/intel_parallel_javascript/. Retrieved 2013-04-10. 
  2. ↑ Hillar, Gaston (29 September 2011). "Introducing Intel Labs' River Trail". Dr. Dobb's. http://www.drdobbs.com/web-development/introducing-intel-labs-river-trail/231602396. Retrieved 29 January 2014. 
  3. ↑ Gareth Halfacree (13 September 2012). "Intel boosts JavaScript with River Trail release". bit-tech. http://www.bit-tech.net/news/bits/2012/09/13/intel-river-trail/1. Retrieved 2013-04-10. 
  4. ↑ "Bug 829602 - ParallelDo intrinsic and self-hosted ParallelArray". Mozilla Foundation. https://bugzilla.mozilla.org/show_bug.cgi?id=829602. Retrieved 2013-04-10. 
  5. ↑ "Bug 801869 - (PJS) PJS: Efficient threaded runtime for data-parallel JavaScript". Mozilla Foundation. 2015-01-19. https://bugzilla.mozilla.org/show_bug.cgi?id=801869. Retrieved 2015-04-23. 
  6. ↑ "PJS has been removed from Spidermonkey". https://groups.google.com/forum/m/#!topic/mozilla.dev.tech.js-engine/H-YEsejE6DA. Retrieved 2017-10-18. 
  7. ↑ Three pillars of the API, https://github.com/RiverTrail/RiverTrail/wiki/Three-Pillars-of-the-API, retrieved 2011-09-14 

External links



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