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LTT Folding Team's Emergency Response to Covid-19

GOTSpectrum
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This event has ended and I recommend you guys head over to the Folding Community Board for any general folding conversation. 

 

 

Posted
Just now, GOTSpectrum said:

Not too bad, you do start to see issues with 2080 cards and up I believe going from the folding forum.

 

Maybe in a few years if they make sense I may own one and be able to say first hand. 

I'm sure if you ask @Gorgon he'll be able to go into it further, having a larger sample size with a wider variety of hardware. But at least for borderline high end cards, I'm not able to note any variance so long as they're both well ventilated, frequency and power delivery are stable, etc.

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I was expecting the CPU to cool off a bit when I took 2 threads away from F@H but the GPU is like a toasty warm blanket in there to it.  83-87c and vibing. 😅 💦

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Posted
9 minutes ago, GOTSpectrum said:

How many lanes are you running on each GPU?

 

FAH doesn't care about the lanes you can use 4 2X lanes and still get the same amount of PPD as an 16X lane, just use PSU riser powered extension ...

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Posted
51 minutes ago, GOTSpectrum said:

WUs seem to be getting more regular plus you only have to produce 35714 ponts per day to ht the requrement, which I think is fine.

Together with the other replies, fair enough then it seems. Certainly I've myself been idle all day today. Yes, I realize the requirement's over the duration of the event itself, but, well, 10 days times 0 points per day is, err, let me see, ... :-)

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Posted
56 minutes ago, Macaw2000 said:

My "Elastic Folding" setup humming along nicely now. I'm using spot market instances on AWS. They are running in containers on ECS and g4dn.xlarge instance types with NVIDIA T4s. What is likely new about my approach is that more instances launch if the spot market price drops (right now it's at $0.15/hr) and instances terminate if the price goes up too much. Basically uses more power when it's cheaper.

 

I can't say exactly how well the system folds because, like all of us, it was waiting on WUs most of last night. I fired it up again this morning and it quickly grabbed a million points. I set up a budget in AWS so if I approach a threshold the system kills itself but right now it's very reasonable. 

 

I'm running on g4dn.xlarge instance too. It was racking up points last night...

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Posted
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1 minute ago, Xsilent(X) said:

FAH doesn't care about the lanes you can use 4 2X lanes and still get the same amount of PPD as an 16X lane, just use PSU riser powered extension ...

That is not true, if you use single lanes you get massive hit to the production, trust me, even on a 970 you can see the hit. 

 

x4 is probably fine for most part with most cards. But we are starting to see the limits of PCIe 3.0 when it comes to lower lane counts 

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Posted

Bumped the freq and voltage down a bit to 3.8 and 1.3 respectively and boy those temps dropped 5c almost instantly.

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Posted
Just now, GOTSpectrum said:

That is not true, if you use single lanes you get massive hit to the production, trust me, even on a 970 you can see the hit. 

 

x4 is probably fine for most part with most cards. But we are starting to see the limits of PCIe 3.0 when it comes to lower lane counts 

 

Whaler did use PSU powered risers on 2X lanes and he said it doesn't impact the PPD. Tried it and i also experienced it.

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Posted
23 minutes ago, AstroAlan said:

It should be fine and F@H will see it as another slot to assign work to.  Anyone can feel free to correct me if I am wrong.

 

20 minutes ago, TVwazhere said:

More cards is more PPD. 

I have two 1070ti's running simultaneously (Project ITNOS), and as long as they're still running at the same frequency, I'm not able to measurable any loss in PPD due to a PCI-E saturation.

 

-snip-

 

19 minutes ago, Inkertus said:

Go for it.  If your CPU is idle it should have no issue managing the GPU work units in tandem nor should it have any bandwidth restrictions.  From what I know about the PCIe bandwidth unless it needs to talk to your CPU a lot like video games do for player data and textures to name two you should have more than enough.

Thanks fir the answers guys, I'll try adding the 1070TI to my system and see how it goes =D

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Posted
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2 minutes ago, Xsilent(X) said:

 

Whaler did use PSU powered risers on 2X lanes and he said it doesn't impact the PPD. Tried it and i also experienced it.

But the PCIe bandwidth requirements of Core-22 with more powerful cards is changing things. 

 

My 1080 is using 20% of the bus(16x PCIe 3.0), that would be more than one lane, a 2080ti could use more than this, by a factor of 3-4. meaning a 4x would be minimum. 

 

But it's not as simple as saying x number of lanes. Because you have PCH vs CPU lanes, and PCH lanes are more likely to be congested, which would have more of an impact.

 

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Posted

Also, each PCIE generation doubles the bandwidth so PCIE 4.0 x8 = PCIE 3.0 x16 etc

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~114001 PPD coming LTT's way :D

 

Plopped a GTX 670 in my main rig since i had it laying around, leaving it on full bore 24/7. May put my 2070 in overnight.

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Posted
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Just now, SCSI15 said:

Have you guys seen this yet?

 

https://www.tomshardware.com/news/folding-at-home-breaks-exaflop-barrier-fight-coronavirus-covid-19

 

Yep, it's been mentioned a few times on here now!

 

Still amazes me though

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1 minute ago, ShortRouter said:

Also, each PCIE generation doubles the bandwidth so PCIE 4.0 x8 = PCIE 3.0 x16 etc

Exactly, which is why I specifically said 3.0. 

My Folding Stats - Join the fight against COVID-19 with FOLDING! - If someone has helped you out on the forum don't forget to give them a reaction to say thank you!

 

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Posted
1 minute ago, GOTSpectrum said:

Yep, it's been mentioned a few times on here now!

 

Still amazes me though

i wonder how much higher it would go if we didn't have these issues with issuing WU's

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Posted
Just now, GrockleTD said:

i wonder how much higher it would go if we didn't have these issues with issuing WU's

I suspect more than double if it's based on who's active vs total people incl. waiting.

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Posted
1 minute ago, Plexas said:

Just got a CPU WU that'll take 4h30min to chew through on a 3700x :o

just got one myself after a wait but < 1hr same proc.

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Posted
Just now, Inkertus said:

just got one myself after a wait but < 1hr same proc.

Chunky boy this one:

 

image.png.2f7c8bcf726ecf9321d5aa8d9e3dd128.png

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Posted (edited)

how can we confirm that we have signed up for this event?

 

Edit: if you look on the XOC forum, the username "saksham" has 2 users with this same name. I am the one who is actively doing WU and getting points. during the vent, how can you be sure you do not pick the wrong one?

Edited by Saksham
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Just now, Saksham said:

how can we confirm that we have signed up for this event?

at 2000 GMT I will be posting the most up to date list giving you all over 3 hours to confirm you are signed up and sorted. 

 

That is in around an hours time

My Folding Stats - Join the fight against COVID-19 with FOLDING! - If someone has helped you out on the forum don't forget to give them a reaction to say thank you!

 

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Posted

oof... These cpu WU's are chonky and not paying out much. Am I not setting it aggressive enough?

 

image.png.ee6ab9fc1fbdd0b7b44865c91770489f.png

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