Intel Core ix and Open CL
26 May 2012 20:47:35 UTC
Topic 196359
(moderation:
Today I installed a brand new i3 system. I've seen, that a very intresting program is installed: OpenCL 1.1 Unterstützung für Intel Prozessorreihe
Does that mean, that we can expect open CL apps for Intel SandyBridge and IvyBridge?
Intel Core ix and Open CL
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Not in the near future and perhaps not in the far future, because the gain in performance is not worth talking about. As i have heard, the Open CL on those processors is not by far comparable to the crunching power of graphic cards with gpus on them.
Hi! This has many levels:
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Hi!
This has many levels: OpenCL can be used for parallel programming on CPUs (utilizing several cores in parallel, and using vector instructions in each core) and GPUs.
For BOINC, OpenCL on CPUs is probably not sooo interesting. Usually you get pretty decent scaling of performance by launching several apps in parallel, each running on a separate core. It would only be intersting for apps with very high memorzy demands, running on CPUs with so many cores that the total amount of RAM would not be enough to have as many app instances as cores up and running in parallel.
The situation is different for GPUs. Both Ivy Bridge and Sandy Bridge chips have GPUs built in, but AFAIK, only GPUs on Ivy Bridge are supported with OpenCL capable drivers. Those could be interesting for BOINC style computing with OpenCL, but don't expect performance on par with dedicated grapgics cards or even notebook graphics cards.
Cheers
HB
I'm running OpenCL apps, at
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I'm running OpenCL apps, at SETI, for MultiBeam and AstroPulse work.
On 2 ATI 5870 GPUs and an i7-2600, they run really fast.
They're using S(ingle)P(recision) apps., both CUDA and OpenCL.
Einstein@home has an AMD-ATI-OpenCL app., too, so I've read sometime ago?!
If it'excist, I'd like to partissipate. Einstein is using S.P., too IIRC?
Host 1
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Host 2
. They both run CUDA. Can't get the url from my i7 on SETI, cause it's
down for maintenance a.t.m..
RE: I'm running OpenCL
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Yup, we recently added an AMD/ATI OpenCL app for the "Binary Radio Pulsar Search" (the one that let volunteers discover ca 20 pulsars by now). Feel free to join in.
Cheers
HB
RE: AMD/ATI OpenCL
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You can go call it an AMD OpenCL app from now on, as ATI seems to be a deprecated brand. Tried ati.com lately? ;-)
RE: RE: AMD/ATI OpenCL
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Yeah, it really is, the reason I like calling it an ATI/AMD app is to reassure volunteers that those cards that were still branded "ATI" when they came out are not automatically excluded :-)
Or let's say I'm old fashioned
Cheers
HB