Originally posted by Cyborg16
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Intel Pushes Their Linux-Friendly Xeon Phi
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Originally posted by Figueiredo View PostI remember that some years ago intel was touting ray-traycing as the future of graphics, this card should probably be very good a it. Is there any open source ray-traycing engine?
I haven't seen a download for the code so you probably can't get it for free...
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Originally posted by chuckula View PostThe vector units in the Xeon Phi are using the same instruction format as the AVX instructions found in Sandy Bridge/Ivy Bridge chips that are already on the market. The Xeon Phi's extend the SIMD instruction length to 512 bits, but otherwise it is the same format (this was done intentionally, and AVX actually scales all the way up to 1024 bit SIMD instructions).
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Originally posted by ldesnogu View Postgcc doesn't really have support for Xeon Phi since it doesn't support their new SIMD extension. Intel just needed to be able to compile the kernel. If you want a compiler, you'll have to use icc.
The vector units in the Xeon Phi are using the same instruction format as the AVX instructions found in Sandy Bridge/Ivy Bridge chips that are already on the market. The Xeon Phi's extend the SIMD instruction length to 512 bits, but otherwise it is the same format (this was done intentionally, and AVX actually scales all the way up to 1024 bit SIMD instructions).
The bigger isssue with Xeon Phi is actually that the cores are simplified x86 meaning they drop some legacy instructions. That's not the end of the world but it does mean that GCC and the kernel need some tweaking so that they are only issuing valid instructions. To get the best performance out of these chips, your workload should be dominated by the SIMD instructions, which is what compute bound tasks are all about.
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Originally posted by F i L View PostI wounder how the Xeon Phi compares to Adapteva's 64-core Parallella processor.
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gcc doesn't really have support for Xeon Phi since it doesn't support their new SIMD extension. Intel just needed to be able to compile the kernel. If you want a compiler, you'll have to use icc.
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Originally posted by Figueiredo View PostThey have probably (and intelligently) decided that it would be easier to start with a HPC part, since the margins in this market allow for a very big and expensive die, and evolve it to eventually serve the graphics industry also. This may also be good for linux, since HPC requires good linux support.
I remember that some years ago intel was touting ray-traycing as the future of graphics, this card should probably be very good a it. Is there any open source ray-traycing engine?
Looking forward, this part should be fairly interesting, as it will surelly shake things up a bit due to the ease of programability and linux friendliness.
Maybe the simplest way is; wait patiently for another 10-15 years till id tech 6 becomes open-source.
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I wounder how the Xeon Phi compares to Adapteva's 64-core Parallella processor.
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They have probably (and intelligently) decided that it would be easier to start with a HPC part, since the margins in this market allow for a very big and expensive die, and evolve it to eventually serve the graphics industry also. This may also be good for linux, since HPC requires good linux support.
I remember that some years ago intel was touting ray-traycing as the future of graphics, this card should probably be very good a it. Is there any open source ray-traycing engine?
Looking forward, this part should be fairly interesting, as it will surelly shake things up a bit due to the ease of programability and linux friendliness.
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