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Broadwell-E thread - Page 252

post #2511 of 7472
Quote:
Originally Posted by Jpmboy View Post

the 22 core cpu is ridiculous fast at compression, rendering, or any app that can use all 44 threads.
Actually as far as I know compression doesn't benefit that much from multi-threading. It heavily depends on memory and that's why you get insanely good results with Quad-channel RAM. But yeah, they are monsters when it comes to rendering smile.gif
post #2512 of 7472
That depends on type of compression. PPM with 3GB work space must search through that, but when data keeps themselves into just few nodes, they tend to be in cache. LZW on the other hand might go quite far. And then there are full image transformations which requires to have images in RAM and being able to access upper image.
o

xx
xx

Basically each x needs information from o. With 250 MB image 1/4 is still too large to fit into the L3 cache.
post #2513 of 7472
Quote:
Originally Posted by Raghar View Post

22 threads. A properly written application doesn't have delays and threads use RAM to its fullest. Doubling number of threads will increase cache pollution and slow things down by needs of synchronization.
and of course in fitting with the "depends" theme here, that would depend on what you are doing... if all you are doing is transforming and searching information you already have, then yes, if new data is coming in, then the ability to stall one or more threads on slow or yet to arrive data, then the equation changes.

It really has gotten very difficult as a consumer to determine which processor will be best for your application if someone has not already run your exact scenario for you. Obviously there are some rules of thumb and Intel's pricing, clock and TDP scheme provide a lot of clues and decision makers for you, but "its complicated"...

With each generation, the "rules" by which clocks/voltages are controlled get more complex and flexible. I expect that to continue which will help the CPU better fit to the application. Right now the fit is fairly crude and lumpy.
post #2514 of 7472
Quote:
Originally Posted by Raghar View Post

22 threads. A properly written application doesn't have delays and threads use RAM to its fullest. Doubling number of threads will increase cache pollution and slow things down by needs of synchronization.
44 threads. 22 cores. And I've seen them running QM calcs and/or molecular dynamics. Depends on what apps you use and the OS I guess. Several folks here lnow more about this than I.
Quote:
Originally Posted by Zero-Cold View Post

Actually as far as I know compression doesn't benefit that much from multi-threading. It heavily depends on memory and that's why you get insanely good results with Quad-channel RAM. But yeah, they are monsters when it comes to rendering smile.gif
Check HWBOT compression benchmarks like x265. or FP marks like y-cruncher. Yeah, I know they are benchmarks... but that is how one compares this stuff on a level playing field.
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post #2515 of 7472
Quote:
Originally Posted by cekim View Post

Nope...

For reasons that are too long, boring, confusing and personal to go into, I've been gaming on a dual 2690v4 with 2 1080s. It games just fine. I bet it would even play crysis...



Ouch. OEM/Retail or ES? Those must have cost a pretty penny haha.

Work just picked up a couple E5-2676 V3 ( yup, the rare Amazon chips, 12 cores @ 2.5ghz base, and 2.7 all core turbo biggrin.gif ), and E5-2683 V3's, all OEM non ES, should fly in the cluster I'm building out.
Edited by cookiesowns - 8/19/16 at 4:36pm
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post #2516 of 7472
Quote:
Originally Posted by cookiesowns View Post

Ouch. OEM/Retail or ES? Those must have cost a pretty penny haha.

Work just picked up a couple E5-2676 V3 ( yup, the rare Amazon chips, 12 cores @ 2.5ghz base, and 2.7 all core turbo biggrin.gif ), and E5-2683 V3's, all OEM non ES, should fly in the cluster I'm building out.
Retail. They aren't free, that's for sure, but they'll pay for themselves soon enough.
post #2517 of 7472
Quote:
Originally Posted by cekim View Post

Retail. They aren't free, that's for sure, but they'll pay for themselves soon enough.

Good stuff. Have you ran VMmark on it by any chance?
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post #2518 of 7472
Quote:
Originally Posted by cookiesowns View Post

Good stuff. Have you ran VMmark on it by any chance?
I haven't, looks like its a little involved...
post #2519 of 7472
Quote:
Originally Posted by Jpmboy View Post

Check HWBOT compression benchmarks like x265. or FP marks like y-cruncher. Yeah, I know they are benchmarks... but that is how one compares this stuff on a level playing field.
Ah, you meant video compression. I though you talk about using software like ZIP or Winrar. smile.gif That's where I meant that cores don't scale that well and it mainly depends on memory smile.gif

I agree, video encoding scales pretty well. thumb.gif
post #2520 of 7472
Quote:
Originally Posted by Zero-Cold View Post

Ah, you meant video compression. I though you talk about using software like ZIP or Winrar. smile.gif That's where I meant that cores don't scale that well and it mainly depends on memory smile.gif

I agree, video encoding scales pretty well. thumb.gif

7-zip and WinRAR scale pretty well with more cores, even 22+.
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