Ryzen and Threadripper

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Grant (SSSF)
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Message 2087714 - Posted: 8 Nov 2021, 22:10:10 UTC

And then there's Genoa & Bergamo for EPYC Zen4.
As part of AMD’s Data Center event today, the company is showcasing that its 4th Generation EPYC roadmap will consist of two segments: Genoa, with up to 96 Zen 4 cores, and Bergamo, with up to 128 Zen 4c cores.
And while AMD may still be behind Nvidia when it comes to gaming, when it comes to compute their Instinct MI200 GPUs are nothing but compute beasts, particularly so for both FP32/FP64 Vector & Matrix work.



Hopefully as countries get on top of Covid19 and supply chains start to untangle themselves, supply constraints will eventually fade away and output will be able to meet demand again.
And the next couple of years are going to be downright amazing as new process nodes mature & current architectures are further refined & new ones come out based on what's been learnt over the last few years. Time to start saving seriously for my next system.
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Message 2087719 - Posted: 8 Nov 2021, 22:38:46 UTC

I assume by the time the supply line constraints are resolved, I will probably be waffling between the Milan-X and Zen 3+ cpus and the Zen 4 cpus which may be out at the same time for my next system upgrades.

I was just extremely lucky to snag my Zen 3 Milan cpu. 99% of every other DIY builder is still waiting for their pre-orders to be fulfilled. Now more than 6 months after launch.
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Message 2088790 - Posted: 23 Nov 2021, 19:59:50 UTC - in response to Message 2073347.  

I think she went for a Ryzen...

Beautifully hilarious for a first-time cruncher!


Maybe Building Your Own PC is a BAD Idea


For a first timer, very well done!

And a good reminder for those who are not so new to this for just how much we take completely for granted.

Enjoy :-)

For another example, going 'slightly north' for a fun 'first time' build, we have for contrast this fantastic customization:

Nerdforge - I Built a Computer...

Lot's of real-world deskspace needed!


Enjoy the colourful enthusiastic fun!!

Happy fast crunchin'!
Martin
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Take a look for yourself: Linux Format
The Future is what We all make IT (GPLv3)
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Message 2089980 - Posted: 10 Dec 2021, 22:48:03 UTC

Zen 4 Epyc will support 12-channel DDR5 RAM
Next year is looking very interesting from a hardware performance point of view.
Grant
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Message 2089981 - Posted: 10 Dec 2021, 23:04:14 UTC - in response to Message 2089980.  

I wonder if it will still be just a difficult to actually score the hardware for DIY builds as it has been this year.
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Message 2090670 - Posted: 21 Dec 2021, 20:33:21 UTC
Last modified: 21 Dec 2021, 21:00:49 UTC

Some of the CPU cores on my 3900XT suddenly have high temperatures, I have tried changing the paste without it making any difference, I use a AIO cooler btw. Is the something wrong with the CPU?



Edit: SIV64 for some reason only shows temperature on CPU 0 and if says 60c.
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Message 2090681 - Posted: 22 Dec 2021, 1:57:59 UTC

That looks like one die has either gone bad or the monitoring on that die has gone bad.
Do you see the clocks on those hot cores being throttled?
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Message 2090689 - Posted: 22 Dec 2021, 6:03:07 UTC

Last night I changed max cpu temp in the bios to 70c, after booting all cores suddenly worked normally, all around 60c.

This morning it's only core 0+1 that has the high temp. Seems all cores runs at the same clock.
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Message 2090981 - Posted: 27 Dec 2021, 20:38:59 UTC

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Message 2090987 - Posted: 27 Dec 2021, 22:09:23 UTC - in response to Message 2090689.  

I've had to disable CPU Temp monitoring in the BIOS and set it to Ignore, or I get spontaneous reboots on my ASUS C7H boards with a F1 CPU Overtemp ! error, even though none of the cpu cores ever get above 80° C. and the official throttle AMD temp spec is 95° C.

I think the flaky temp reporting by the SIO chip on the motherboard occasionally spikes an erroneous high core temp which then trips the mobo protect feature if the cpu reporting in Monitoring is set to Monitor.

I'm using the default BIOS setting for cpu max temp which is set to 95° C.
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Message 2091044 - Posted: 28 Dec 2021, 15:03:19 UTC
Last modified: 28 Dec 2021, 15:04:45 UTC

Haven't had any temp issues the last days, maybe all is back to normal.

btw setting the max temp to 70c in bios didn´t help with the high temp I had.
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Message 2091681 - Posted: 7 Jan 2022, 23:25:53 UTC

AMD Zen4, AM5 platform Ryzen 9 7950X ES sample being used at Milkyway on the cpu N-body MT tasks. Bonkers BOINC integer benchmarks.
https://milkyway.cs.rpi.edu/milkyway/show_host_detail.php?hostid=911833
Still haven't had any wingman complete the paired tasks to compare the processing times. Never ran the N-body tasks before so I don't know what representative times for current hardware is.
The floating point benchmarks are nothing out of the ordinary compared to my Ryzen 9 5950X though. Just a bit better.
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Message 2093002 - Posted: 27 Jan 2022, 21:18:10 UTC

For those interested in the high-level architectural changes coming in AM5 processors, the Gigabyte leak and the analysis from Chips and Cheese provides great information.
https://chipsandcheese.com/2021/08/23/details-on-the-gigabyte-leak/
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Message 2093033 - Posted: 28 Jan 2022, 5:10:04 UTC - in response to Message 2093002.  

For those interested in the high-level architectural changes coming in AM5 processors, the Gigabyte leak and the analysis from Chips and Cheese provides great information.
https://chipsandcheese.com/2021/08/23/details-on-the-gigabyte-leak/
Thanks for that.
A very interesting read.
Grant
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Message 2093079 - Posted: 28 Jan 2022, 20:52:57 UTC - in response to Message 2093002.  

For those interested in the high-level architectural changes coming in AM5 processors, the Gigabyte leak and the analysis from Chips and Cheese provides great information.
https://chipsandcheese.com/2021/08/23/details-on-the-gigabyte-leak/


sad to see AMD implementing AVX512 as it has very limited use and in some cases reduces performance vs AVX2 due to the heavy clock speed penalties (based on what intel does currently with AVX512, maybe AMD will do it differently), and adopting it will only help intel give legitimacy to AVX512. wasted die space IMO.
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Message 2093085 - Posted: 28 Jan 2022, 22:26:09 UTC - in response to Message 2093079.  

I think the implementation of AVX-512 is a case of marketing guys getting the upper hand over the design team in forcing AVX-512 to better match Intel capabilities. Every review you see comparing Ryzen/Threadripper/Epyc to Intel HEDT/server parts has the lack of AVX-512 support number one in the disadvantage lists.

The marketing people want to knock that disadvantage from the list right now.

I agree the amount of applications that actually implement AVX-512 is very limited. I also agree it is a waste of die space for BOTH Intel and AMD.
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Message 2094979 - Posted: 26 Feb 2022, 2:31:41 UTC

New AMD Milan-X cpus are up for ordering now at ShopBLT
https://www.shopblt.com/search/s_all=EPYC&s_max=25&s_lastpos=4688760&order_id=219337371
But a big 34% increase in price for the 7473X 24C over my existing 7443P 24C cpu. Think I will skip it and wait for Zen 4.
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Message 2094987 - Posted: 26 Feb 2022, 3:49:58 UTC - in response to Message 2094979.  
Last modified: 26 Feb 2022, 3:56:27 UTC

34%?

The 7473X is like over $4000 lol. The 7443P is about 14-1500. So it’s about 3x the price.

I haven’t seen any compelling evidence that the Milan-X chips are worth the price.

And zen4 will require a platform upgrade unfortunately.
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Message 2095018 - Posted: 26 Feb 2022, 21:45:54 UTC - in response to Message 2094987.  

I just copied the value from the story. Didn't check their math.
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Message 2097364 - Posted: 8 Apr 2022, 0:55:17 UTC

First AMD Genoa motherboard and SP5 socket image with 12 DDR5 slots.
https://forums.servethehome.com/index.php?attachments/lga6096-png.20966/
See the socket attachments of SP5 for the cooling solution has changed to 6 threaded posts instead of 4 threaded sockets of SP3.
Expected I guess to be able to pull the cpu evenly down to mate with LGA6096 pins.
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Message boards : Number crunching : Ryzen and Threadripper


 
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