The group's goal is to get SIMD.js capabilities in ECMAscript 7, which may not arrive for some time. ECMAscript 6, for its part, has been slated for completion later this year.
SIMD capabilities, however, have already been implemented to an extent, according to Haghighat. "The interpreter support for SIMD.js has already landed in Firefox nightly, and I think the full JIT support will be there in a couple of months with our ongoing incremental landing of the JIT parts," he said. "We have also submitted the full patch to Chromium V8 for review." SIMD.js has been included in Intel's Crosswalk Web runtime and distributed in the company's XDK tool for HTML5 mobile application development, Haghighat said.
SIMD is merely running multiple processors in lockstep, Christy said. "There are some computations where SIMD is perfect -- image processing, for example. But for most computation, there is a limit to the intrinsic parallelism -- how much you can do in parallel -- which limits the use compared to having a grid of full computers that can work independently and then periodically interchange results." Intel, however, sees speech and facial recognition, audio and video processing, and games as possibilities.