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#201 MoroseTroll

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Posted 28 August 2017 - 12:10 PM

I suppose, the "dmap" function is barely multi-threaded and/or doesn't use SIMD at all. The results I was talking about earlier ("AMD Zen works usually faster with 128-bit SIMD than any Intel CPU") I've got by entering the "testSIMD" console instruction.



#202 Bikerdude

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Posted 28 August 2017 - 12:22 PM

I've got by entering the "testSIMD" console instruction.

ok, for curiosities sake how do I do a usefull test on both systems?



#203 MoroseTroll

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Posted 28 August 2017 - 01:20 PM

Before I've started my work on SIMD optimizations, I did usually use vanilla Doom 3 (not sure about the BFG edition) for such an experiments: run the game, enter the console menu and type the instruction. But later, I compiled a standalone console executable that does almost the same. In case you run the last one, it would be nice to redirect its output to a text file, like "TestAll > Results.txt". But be careful: my test only run my SIMD code on AMD CPUs (on any of them, but not earlier Athlon, i.e. no K6 & K5 :)), so if you run it on Intel (or VIA :)), it'll run the old (not my) code, i.e. you'll see no difference.



#204 Bikerdude

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Posted 28 August 2017 - 03:31 PM

Ive downloaded the little file, whats flags do I use to get a result that I can upload as a file?



#205 MoroseTroll

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Posted 29 August 2017 - 04:00 AM

What do you mean by saying "flags?" My method is simple:

 

1. Download "TestAll.7z" and unpack it somewhere.

2. Run "TestAll.exe > Results.txt".

3. Open "Results.txt" in Notepad or any other text viewer/editor and compare the results.

 

The executable has no flags at all. It's just a standalone version of the "TestSIMD" console instruction from Doom 3.

 

BTW, 7-Zip has been updated to 17.01 yesterday. Also, please don't forget to toggle on the "Use large pages" option in it, because this improves overall performance :).


Edited by MoroseTroll, 29 August 2017 - 06:34 AM.


#206 Bikerdude

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Posted 29 August 2017 - 04:56 AM

ah ok, I didn't realize it auto generated the txt file.



#207 MoroseTroll

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Posted 29 August 2017 - 06:39 AM

Um... Actually, its output is directed to console (DOS/*nix style), so the best way to anylize the results is to redirect them to a text file.



#208 Bikerdude

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Posted 30 August 2017 - 12:49 PM

1. Download "TestAll.7z" and unpack it somewhere.

2. Run "TestAll.exe > Results.txt".

3. Open "Results.txt" in Notepad or any other text viewer/editor and compare the results.

done, see attached.

 

Attached File  Results.txt   101.44KB   5 downloads


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#209 Bikerdude

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Posted 30 August 2017 - 04:17 PM

Due to the various issues and immaturity of the bios/drivers its going back for a refund. If anyone wants me to do any further tests they had better be quick, I will be raising the return with amazon on Friday.


Edited by Bikerdude, 30 August 2017 - 04:17 PM.


#210 MoroseTroll

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Posted 31 August 2017 - 01:43 AM

I think there will be no adequate BIOS/UEFI & driver support for Win 7 on Ryzen - we all know why.


Edited by MoroseTroll, 31 August 2017 - 01:45 AM.

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#211 jaxa

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Posted 31 August 2017 - 10:46 AM

Intel Xeon-W

http://www.anandtech...or-workstations

 

MediaTek Helio P23 and P30

http://www.anandtech...0-midrange-socs

 

AMD Threadripper 1900X

http://www.anandtech...-ryzen-pro-cpus



#212 Bikerdude

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Posted 02 September 2017 - 02:29 AM

Final opinion from the 6850k/x99 & 1600x/X370 -

 

Intel - 6850k/X99 (total cost £600):

 

Pros

  • Multi CPU perf noticeably better.
  • Motherboard beefier across the board -
    • 40 PCIe lanes on the 6850 compared to 16 on the 4790.
    • More PCIe expansion slots.
    • More ram slots (8 versus 4)

Cons

  • Cold boot times significantly slower than my 4790k/Z97, 45s to desktop compared to 20s.
  • Even overclocking the 6850k to 4.2Ghz, single thread perf not quite as fast as the 4790k @4.4ghz - so dmapping a tad slower.

Amd - 1600x/X370 (total cost £400):

 

Pros

  • Multi CPU perf significantly better, way better than the 6850k (both CPU's were 6 core)
  • Motherboard better in some respects -
    • 24 PCIe lanes versus 16 on the 4790.
    • USB 3.1

Cons

  • Cold boot times significantly slower than my 4790k/Z97, 35s to desktop compared to 20s.
  • AMD chipset drivers immature - getting weird incompatibility issues - but that to be expected seeing as the platform is only 6 months old
  • Weird warm and cold boot issues -
    • on cold the system would do a double boot, some info online suggest this is normal and its the mobo checking the ram - either way I am NOT putting up with that (cold to desktop is well over a minute in that scenario).
    • Warm rebooting, randomly windows 7 would sit on the logo screen for waaaaay too long p - At a guess chipset drivers.
    • Shutting down sometimes it would a bit long - At a guess chipset drivers.
  • Single thread perf @ 4.0Ghz noticeably slower than the 4790k @4.4ghz - so dmapping on my city map took over a minute longer

I will not be shoehorned into upgrading to Win8/10, all of the issues with boot times on both system would have probably been alleviated with the aforementioned OS's. And the weird cold/warm boot issues on the Ryzen setup would most likely not have even come up.

 

For this you want the best perf and 100% Win7 compatibility, you can still buy 4790k on newegg ($391, 3 year warranty), or if you want to save some cash CEX ($250, 2 year warranty)



#213 jaxa

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Posted 26 October 2017 - 03:26 PM

Ryzen Mobile launched:

 

https://www.anandtec...and-updated-zen


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#214 jaxa

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Posted 26 October 2017 - 04:23 PM

Intel is likely to put out a 6-core mobile chip before AMD does, but the CPU and GPU improvements make these chips worthwhile.

 

The 200% CPU improvement is probably a best case scenario from switching from "2 modules" to 4 cores/8 threads in a 15W chip combined with the IPC gains. ~52% improvement from just the IPC gains is more realistic.

 

The 128% GPU improvement is realistic, with 114% being a minimum improvement (10 vs 8 GPU "compute units", 1300 MHz vs 758 MHz frequency. 1.25 x 1.715 = 2.14).

 

It looks like these could double TDM performance vs previous chips (GPU is the bottleneck, right?), or do a lot better than my A6-3400M which has gotten as low as 3-5 FPS during mission beta testing. The two chips being launched are only at a 15 W TDP, so you might have to wait for 30-35 W if you want more performance and not ultrabook-like specs.


Edited by jaxa, 26 October 2017 - 04:24 PM.


#215 jaxa

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Posted 04 November 2017 - 10:19 AM

GTX 1070 Ti, Nvidia's answer to the Vega 56, although it is $50 more expensive:

https://www.anandtec...-edition-review



#216 jaxa

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Posted 06 November 2017 - 12:49 PM

LOL it happened:

 

https://newsroom.int...k-thin-devices/

 

The new product, which will be part of our 8th Gen Intel Core family, brings together our high-performing Intel Core H-series processor, second generation High Bandwidth Memory (HBM2) and a custom-to-Intel third-party discrete graphics chip from AMD’s Radeon Technologies Group* – all in a single processor package.

 

It’s a prime example of hardware and software innovations intersecting to create something amazing that fills a unique market gap. Helping to deliver on our vision for this new class of product, we worked with the team at AMD’s Radeon Technologies Group. In close collaboration, we designed a new semi-custom graphics chip, which means this is also a great example of how we can compete and work together, ultimately delivering innovation that is good for consumers.


Edited by jaxa, 06 November 2017 - 07:15 PM.


#217 AluminumHaste

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Posted 06 November 2017 - 10:22 PM

I was surprised to read that earlier today, after Intel squashed the rumours earlier in the year, now it's come to fruition. Good for AMD, this should really help.


I always assumed I'd taste like boot leather.

 

#218 jaxa

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Posted 06 November 2017 - 11:00 PM

I was surprised to read that earlier today, after Intel squashed the rumours earlier in the year, now it's come to fruition. Good for AMD, this should really help.

 

Some of the AnandTech comments speculate that it WON'T help AMD.

 

The graphics look better than what will come with AMD Raven Ridge, and AMD has not added HBM to any of their consumer parts yet.

 

Add to that Intel's better cores and possibly 6 cores for these chips, and it is the king of high-TDP laptop chips.



#219 jaxa

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Posted 09 November 2017 - 06:48 AM

Still looking good for AMD?

 

https://newsroom.int...ri-joins-intel/

 

Intel to Develop Discrete GPUs, Hires Raja Koduri as Chief Architect & Senior VP


Edited by jaxa, 09 November 2017 - 06:49 AM.


#220 AluminumHaste

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Posted 09 November 2017 - 09:34 AM

I will don't see how Intel can do a discreet GPU, they hold no patents in GPU architecture.

I always assumed I'd taste like boot leather.

 

#221 jaxa

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Posted 09 November 2017 - 09:55 AM

They made Larrabee which later became Xeon Phi which competes with Nvidia products (Knights Mill vs Nvidia Tesla for half-precision machine learning). And they make iGPUs. So they have a few patents somewhere.


Edited by jaxa, 09 November 2017 - 09:55 AM.


#222 AluminumHaste

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Posted 10 November 2017 - 08:09 AM

I see, the reason I thought that was because their patent agreement with Nvidia ended but they still have access to the patents for making their GPUs.

However, Intel seems to hate Nvidia, hence going with AMD.


I always assumed I'd taste like boot leather.

 

#223 lowenz

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Posted 11 November 2017 - 05:13 AM

I will don't see how Intel can do a discreet GPU, they hold no patents in GPU architecture.

There are no more "GPU" with the "G", as Huang said :P

 

There are only high parallelized computation processors usable for graphics too :D

Intel (as NVIDIA, as AMD) will produce TENSOR processors that can be used to accelerate graphics computation too (thanks to the OS  drivers).


Edited by lowenz, 11 November 2017 - 05:16 AM.

Task is not so much to see what no one has yet seen but to think what nobody has yet thought about that which everybody see. - E.S.


#224 Bikerdude

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Posted 26 November 2017 - 05:20 AM

Another nail in the coffin for the Intel management engine - https://arstechnica....evice-firmware/



#225 jaxa

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Posted 26 November 2017 - 06:52 AM

Another nail in the coffin for the Intel management engine - https://arstechnica....evice-firmware/

 

People will just patch and move on, or forget to patch. Intel ME will become even stronger.

 

We now live in an age of total insecurity in computing. Updates might protect you somewhat from script kiddies and criminals, but intelligence agencies will find a way in if they want in. Similar backdoors will be found and exploited in AMD and ARM, comprising the overwhelming majority of personal computers (to include mobile phones). Let's see a widespread switch to MIPS or IBM's POWER. *crickets*


Edited by jaxa, 26 November 2017 - 06:54 AM.






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