Ryzen and Threadripper

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Profile Keith Myers Special Project $250 donor
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Message 2025375 - Posted: 28 Dec 2019, 21:58:08 UTC

Tremendous news for crunchers. The improvement in FPU performance in very apparent in task times comparing Zen 2 processors like my 3900X and 3950X compared to my older Zen + 2700X processors. Just the increase in the FP register widths from 128bit to 256bit was probably the major difference. The increase in the L3 cache size probably helps too.

So if the FP performance is supposed to be 50% over Zen 2 and the L3 cache increases again and is unified for all CCD's, reducing latency even more, then the crunching performance should be another massive jump. Can't wait!
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Message 2025376 - Posted: 28 Dec 2019, 21:59:49 UTC

Think the host stats are finally catching up. Looks like my 3950X is going to catch and pass my 2920X. That is 3 gpus versus 4 gpus.
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Message 2025382 - Posted: 28 Dec 2019, 22:13:12 UTC - in response to Message 2025375.  
Last modified: 28 Dec 2019, 22:13:42 UTC

So if the FP performance is supposed to be 50% over Zen 2 and the L3 cache increases again and is unified for all CCD's, reducing latency even more, then the crunching performance should be another massive jump. Can't wait!
Unfortunately the release dates for consumer Zen 3 CPUs are "Some time between mid 2020 and the end of 2020". Hopefully TSMC can continue to ramp up it's 7nm production lines.
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Message 2025397 - Posted: 29 Dec 2019, 0:09:37 UTC

Yes, I predict another product announcement around Computex in June and the actual products available around September-October just like Ryzen 3000.
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Message 2025448 - Posted: 29 Dec 2019, 12:45:40 UTC

Just got another price Alert. This time I could order it at Amazon for $749 with an "in-stock date" of January 11th.

I have been promising myself that when I could get it for list price I would buy it.
So it is on order.

My barely used Amd 2700x finally showed up. I foresee a busy future hoping cpus off and on motherboards.
Maybe I will re-configure my Weekend Warrier #1 box with the 3900 and two gtx 1070's. (After the two new Gtx 1660 Supers show up). Or I could drop it into my Windows box. Which would give that one "real muscle" :)

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Message 2025467 - Posted: 29 Dec 2019, 16:35:57 UTC

Dutch people still pay premium, €829,- at minimum: https://tweakers.net/pricewatch/1403128/amd-ryzen-9-3950x.html
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Message 2025507 - Posted: 30 Dec 2019, 0:40:05 UTC - in response to Message 2025467.  

Dutch people still pay premium, €829,- at minimum: https://tweakers.net/pricewatch/1403128/amd-ryzen-9-3950x.html


Most likely Amazon is only offering it at least till the "order runs out". Then it is points north again.

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Message 2025510 - Posted: 30 Dec 2019, 0:49:25 UTC

Mine was in stock when I ordered it and it shipped the same day at Amazon.
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Message 2025630 - Posted: 30 Dec 2019, 23:05:56 UTC

This one is for you Tom. For those suffering from "core envy", looks like the gap between the new AMD Threadripper HEDT processors 3970X and 3990X is being filled by a 48 core monster for those that think that 64 cores is too much but 32 isn't enough.
https://www.techpowerup.com/262509/amd-ryzen-threadripper-3980x-is-a-48-core-monster-for-when-64-cores-are-too-many-32-too-few
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Message 2025668 - Posted: 31 Dec 2019, 3:25:03 UTC

I am enjoying very much the 32 threads of the 3950X Ryzen 9 processor. So many cores to dedicate towards Seti. Barely stressing the cpu with 60% cpu usage and the amount of work processed every day is impressive. Didn't really think the change from the 3900X to the 3950X was going to be that big of a change. But it was. The voltage is less and the temps are less. Granted, the cooler temps of Winter help as well as the change to the Ryzen 2 optimized Optimus cpu block had made a big difference. But I can easily see not needing to change cpu % any for the temps during summer.

Have very high hopes that the 17% improvement in IPC that is rumored for Ryzen 4000 cpus is going to have an even bigger effect. Can't wait.!!!!!! 2020 here we come!!!!
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Message 2025695 - Posted: 31 Dec 2019, 12:19:56 UTC

Do you have any idea of the SETI daily production of the CPU alone? Maybe per core? And with how many cores you actually runs?
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Message 2025719 - Posted: 31 Dec 2019, 16:19:36 UTC - in response to Message 2025695.  

Do you have any idea of the SETI daily production of the CPU alone? Maybe per core? And with how many cores you actually runs?

Right now BT is showing 548 cpu tasks per day on the 3950X. It is showing 464 cpu tasks per day on the 3900X. Tasks per core is 547/16=34.25 per day on the 3950X. Tasks per core is 464/12=38.667 on the 3900X. It was over 600 earlier with a different task mix. I run 50% of the cpu cores on cpu work.
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Message 2025757 - Posted: 31 Dec 2019, 21:34:15 UTC

And I have to wait till the middle of the month+ to get my 3950x fix. Oh, well.....

Maybe I need a dedicated Savings Account for my 3990wx fix...

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Message 2025780 - Posted: 31 Dec 2019, 23:08:39 UTC

on the talks. seeing thread so long. are we talking more on linux perf then wins perf?
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Message 2025803 - Posted: 1 Jan 2020, 0:31:41 UTC - in response to Message 2025780.  

on the talks. seeing thread so long. are we talking more on linux perf then wins perf?

I think I have in general seen reviews on the Tech sites stating that Linux performance is often better than Windows performance.

The Linux thread scheduler never was as broken as the Windows thread scheduler. That is only fixed in Windows with the latest Windows update.

Also part of the perception probably is that Windows reviews approach Ryzen/Threadripper performance from a gaming perspective. That is not the reason for these new high multi-core processors to exist. They are for multi-core applications like video production or mathematical or business applications. The reviewers are simply looking for the highest single core clock and when they do run loads that use all cores, they run the cpu in default Auto configurations which are not the best for all-core use since the clocks reduce down to the lowest common clock speed at Auto Vcore voltages which produce an unnecessary amount of extra heat which further reduces the core clocks.

The best way to run the new processors is to use a manual all-core locked multiplier and a reduced Vcore for better temps. This viewpoint is for distributed computing loads and not the general configuration the processors run on motherboards out of the box. Takes some research, testing and configuration of what each processor is capable of in configuring the BIOS. Which most users are not willing to do or have the skills or knowledge. The average computer user is not going to get the best crunching performance out of the cpu if they just run them in Auto.
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Message 2026134 - Posted: 3 Jan 2020, 13:51:29 UTC

Gamers Nexus has a review of the new Ryzen 5 1600 AF: https://www.youtube.com/watch?v=wRO_AUdmfis, at $85.

In this review, we're looking at AMD's new Ryzen 5 1600 AF processor, which is a 2nd Gen Ryzen CPU (with 1st Gen naming) to replace the R5 1600.

AMD somewhat silently released a new CPU -- the AMD Ryzen 5 1600 AF -- which is technically a better R5 1600, but with the same name. It's a 12nm part rather than 14nm, something we confirmed with AMD, and that brings with it benefits for power efficiency, overclocking headroom, and even stock performance (in a significant fashion). In this benchmark, we're looking at the AMD R5 1600 "AE" (the original) versus the R5 1600 AF, the R5 2600 (which we need to do some refreshed testing on once we're back from CES, but it hasn't changed much), and the R5 3600. The R5 1600 AF impressed us, especially at the budget CPU price, and has established itself as one of the best budget CPUs for gaming or light production workloads.

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Message 2026194 - Posted: 4 Jan 2020, 0:25:59 UTC

If you have been looking wishfully at a AMD 3900x the prices are beginning to spend more time within $50 of the MSRP of $499.95(?).

I am also getting notices for ~$150 new 2700x (yes it has the cooler).

What a time to run out of AM4 motherboards :)

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Message 2026234 - Posted: 4 Jan 2020, 4:38:47 UTC - in response to Message 2025803.  

@ Keith Myers
I see you are running a Threadripper 2920X and Ubuntu 18.03.4.

I am looking to increase the production on my Threadripper 1950X and
would appreciate a link to a resource to do the research on setting the
CPU for better performance at a lower temperature. If you have such a
resource link, others may also benefit from it if posted.

TIA
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Message 2026252 - Posted: 4 Jan 2020, 8:04:14 UTC
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Depends on the motherboard and the BIOS settings available. I am running the Asrock X399 Fatality Pro Gaming board. Right now I am running with the Performance Level 2 setting in the BIOS which keeps the cpu boosted to somewhere around 4100Mhz on average. The Vcore hovers around 1.36V with a LLC3 setting. That keeps the cpu at just under the 68° C. Tdie throttle point.

But the BIOS settings would be very different if on a ASUS board with a different BIOS. I have pre-ordered the new Optimus Threadripper block that I hope ships sometime this month. I am very happy with my new Optimus AM4 block on my 3950X. Their new design should prove fantastic even on the older Threadripper 2000 generation cpus since it is designed for the new Threadripper 3000 series. Massive amount of cooling area. https://optimuspc.com/products/absolute-cpu-block-threadripper-3

I hope to switch to a locked all-core multiplier of 42 or 43 and fixed Vcore with negative offset when I put the new block on the 2920X. If I have to up the Vcore for stability the new block should still keep the temps in check. That should give the 2920X a nice boost and might get it closer to the 3950X in performance.

I will then be ready for when the Threadripper 3000 series motherboards and cpus drop in price later.

[Edit] You also asked for how to reduce temps. Liquid cooling, either an AIO or custom loop cooling. I would say a 280 or 360mm radiator would be minimum. Also you have to get a cold plate that is full coverage. That is the most important feature. You could also get a Noctua NH U14S TR4-SP3 air cooler which has a full coverage cold plate. https://noctua.at/en/nh-u14s-tr4-sp3 That is supposedly able to hold a Threadripper 2950 at 4 Ghz all-core and keep it from thermal throttling. I would also install a second fan. If you want to go farther than that you will need liquid cooling.
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Message 2026263 - Posted: 4 Jan 2020, 10:10:48 UTC - in response to Message 2026252.  

You could also get a Noctua NH U14S TR4-SP3 air cooler which has a full coverage cold plate. https://noctua.at/en/nh-u14s-tr4-sp3 That is supposedly able to hold a Threadripper 2950 at 4 Ghz all-core and keep it from thermal throttling. I would also install a second fan. If you want to go farther than that you will need liquid cooling.


+1 :)

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