LTT Official Folding Month VI

[GOTSpectrum]

7 minutes ago, Needfuldoer said:

So you should rig those batteries up on a trailer, so you can tow more capacity with you!

 

But you'll need more batteries to haul the batteries around, then more batteries to haul those around... At least rockets expel mass as they burn their fuel!

 

[leadeater]

11 minutes ago, Needfuldoer said:

So you should rig those batteries up on a trailer, so you can tow more capacity with you!

 

But you'll need more batteries to haul the batteries around, then more batteries to haul those around... At least rockets expel mass as they burn their fuel!

Total weight is around 700kg so nah... lol (I do have 24 total so 905kg)

[GOTSpectrum]

Blog on the bus, blog on the bus, it's a blog, oh its a blog, blog on the bus

 

 

[GOTSpectrum]

@Mxyzptlk

[Windows7ge]

Alright, ditched Windows we're going full Linux nodes.

 

I decided since we verified the passkey is working on one Linux node with a GPU I'm just going to throw the other one in and run two nodes instead of three. Turns out every other slot is a little too close for my super basic airflow guides.

 

 

But temps still look ok so whatever.

 

+---------------------------------------------------------------------------------------+
| NVIDIA-SMI 535.104.12             Driver Version: 535.104.12   CUDA Version: 12.2     |
|-----------------------------------------+----------------------+----------------------+
| GPU  Name                 Persistence-M | Bus-Id        Disp.A | Volatile Uncorr. ECC |
| Fan  Temp   Perf          Pwr:Usage/Cap |         Memory-Usage | GPU-Util  Compute M. |
|                                         |                      |               MIG M. |
|=========================================+======================+======================|
|   0  Tesla P4                       Off | 00000000:02:00.0 Off |                  Off |
| N/A   70C    P0              60W /  75W |    180MiB /  8192MiB |     99%      Default |
|                                         |                      |                  N/A |
+-----------------------------------------+----------------------+----------------------+
|   1  Tesla P4                       Off | 00000000:81:00.0 Off |                    0 |
| N/A   64C    P0              54W /  75W |    122MiB /  7680MiB |     99%      Default |
|                                         |                      |                  N/A |
+-----------------------------------------+----------------------+----------------------+
                                                                                         
+---------------------------------------------------------------------------------------+
| Processes:                                                                            |
|  GPU   GI   CI        PID   Type   Process name                            GPU Memory |
|        ID   ID                                                             Usage      |
|=======================================================================================|
|    0   N/A  N/A      1593      C   ...it/22-0.0.20/Core_22.fah/FahCore_22      178MiB |
|    1   N/A  N/A      2292      C   ...it/22-0.0.20/Core_22.fah/FahCore_22      120MiB |
+---------------------------------------------------------------------------------------+

 

For the moment the log says everything's working AOK. We'll see if I get another PPD bump in the next 24~48hrs. I'd like to see >2M.

[cbigfoot]

1 hour ago, leadeater said:

2011 Nissan Leaf with a very not so great battery SOH

oh boy yeah pouch cells not my fav...

[dogwitch]

2 hours ago, soccermomisqueen said:

I think I live too far in buttf*** nowhere USA to know what in the world Calcium acid batteries are and what are its advantages are over lead acid. Could also be that I have a family member that works in a lead acid battery plant and have never thought to look at anything else other than lead acid...

https://interstatebatteriesep.com/the-major-types-of-car-batteries-explained/

https://www.differencebetween.com/difference-between-lead-acid-and-calcium-batteries/

[Mxyzptlk]

6 hours ago, Needfuldoer said:

APC and Eaton make lithium UPSes, but they're even more expensive than their lead counterparts and "only" come in traditional UPS capacities.

 

I've got an APC 2200 that needs eight new 12v 5A batteries for its RBC43 cartridge. Drop-in LiFePo4 replacements are out there, but I think they're mostly intended for emergency lighting and fiber ONT applications. I don't know how they'd hold up to a UPS, and so far I haven't found a blog or anything by someone who's tried.

LifePo4 takes a different charge controller. Not sure how they could be dropped into a standard APC (etc) without doing some internal charger alterations. 

[leadeater]

6 hours ago, Needfuldoer said:

I've got an APC 2200 that needs eight new 12v 5A batteries for its RBC43 cartridge. Drop-in LiFePo4 replacements are out there, but I think they're mostly intended for emergency lighting and fiber ONT applications. I don't know how they'd hold up to a UPS, and so far I haven't found a blog or anything by someone who's tried.

You should never charge a Lithium technology type battery without a Lithium charge controller and it configured to the type you have. Anything else will either make the Cells fail or worse burst (with or without fire).

 

If you want to convert an existing UPS over then you need to use the external battery connector, or wire in to the internal one if it doesn't have external, with a battery diode so the UPS cannot charge the battery and control all the charging separate from the UPS. That's how I charge my VLRA batteries since they are wired up to an Eaton 9130 3000VA UPS and 18x 120Ah is like 30x what it's rated for and has zero clue or hope of charging that lol.

[Mxyzptlk]

1 hour ago, GOTSpectrum said:

@Mxyzptlk

[LavenderPhantom78139]

Man if we can up the pace a little we could pass curecoin before folding month is over

[Mxyzptlk]

Let’s see your room cooling! Here is my office cooling solution. 3 extra 140mm case fans.  Just plugged into a 12vdc wall wart. (Hmmmm yeah, looks like I need to concentrate a little less on folding and do some dusting…) 
 

[justpoet]

3 hours ago, leadeater said:

You should never charge a Lithium technology type battery without a Lithium charge controller and it configured to the type you have. Anything else will either make the Cells fail or worse burst (with or without fire).

 

If you want to convert an existing UPS over then you need to use the external battery connector, or wire in to the internal one if it doesn't have external, with a battery diode so the UPS cannot charge the battery and control all the charging separate from the UPS. That's how I charge my VLRA batteries since they are wired up to an Eaton 9130 3000VA UPS and 18x 120Ah is like 30x what it's rated for and has zero clue or hope of charging that lol.

A lot of the LiFe packs have BMS built in specifically to make them drop in replacements for lead in things like golf carts and similar.  So that handles the balancing and the voltages.  Now, if you just order prismatic cells because they're cheap...get a proper charge controller and balancing system.

[MetaDrow]

Late to the party but folding up and running now 

[houndtt]

Hi guys, this is the first time I'm contributing to this and decided to jump in after it was mentioned on WAN show. I was watching with interest as my daily points slowly creeped up. I then changed my username to match my forum name as well as moved from the v7 client to the v8 beta client. I don't know which of these changes caused it but I've been seeing my contribution as zero for the past two days on the spreadsheet. I didn't change my passkey or team id so I'm hoping you can help me get back on the board.

[will0hlep]

1 hour ago, houndtt said:

Hi guys, this is the first time I'm contributing to this and decided to jump in after it was mentioned on WAN show. I was watching with interest as my daily points slowly creeped up. I then changed my username to match my forum name as well as moved from the v7 client to the v8 beta client. I don't know which of these changes caused it but I've been seeing my contribution as zero for the past two days on the spreadsheet. I didn't change my passkey or team id so I'm hoping you can help me get back on the board.

Probably changing your folding username caused the issue, as they have probably been searching for your activity under the old username. You might need to change it back.

[will0hlep]

Just out of interest, from what site do you pull our daily stats for the leaderboard in the daily blog post?

[Alex Atkin UK]

1 hour ago, houndtt said:

Hi guys, this is the first time I'm contributing to this and decided to jump in after it was mentioned on WAN show. I was watching with interest as my daily points slowly creeped up. I then changed my username to match my forum name as well as moved from the v7 client to the v8 beta client. I don't know which of these changes caused it but I've been seeing my contribution as zero for the past two days on the spreadsheet. I didn't change my passkey or team id so I'm hoping you can help me get back on the board.

The F@H results are output via usernames, so its unlikely they can fix this if they are calculating the result based on what you had at the start of the event vs what you have now.   Generally no exceptions are made, nothing can be changed once the event starts.

[leadeater]

1 minute ago, will0hlep said:

Just out of interest, from what site do you pull our daily stats for the leaderboard in the daily blog post?

https://foldingathome.org/statistics/?lng=en

 

https://apps.foldingathome.org/daily_user_summary.txt.bz2

[leadeater]

1 hour ago, houndtt said:

Hi guys, this is the first time I'm contributing to this and decided to jump in after it was mentioned on WAN show. I was watching with interest as my daily points slowly creeped up. I then changed my username to match my forum name as well as moved from the v7 client to the v8 beta client. I don't know which of these changes caused it but I've been seeing my contribution as zero for the past two days on the spreadsheet. I didn't change my passkey or team id so I'm hoping you can help me get back on the board.

Change your folding name back to what it was originally, the participant list doesn't get updated after start. While I do actually have the data for every hour for the entire LTT team it's hassle to go manually get it out for something like that and I can't really offer to do it anyway since every man and his dog would end up asking 

 

But it's only 2 days so it's good you noticed it soon enough and it's correctable.

[HoldSquat]

On 11/7/2023 at 12:57 PM, Oestle said:

I think my Pi 4 is only getting around 3500-4000 PPD and the jobs usually take around 2 days. (not overclocked, didn't seem to be very stable for me)

So i'm curious what it'll look like with the Pi 5 you have here.

So update on the Pi5 for you, after roughly 24 hours it got 28k in points and 1WU and right now it's guessing 13369 PPD.I have to say the active fan is so ANNOYING, its not loud but the humming is an annoying pitch to me. I have it in my living room and if I keep folding with it I think ill run it headless in our storage room so I don't have to hear it. I just need to get the remote access working on it. Oh and I lost the silicon lottery with my Pi. I am running stock speed since it keep being unstable even with just a 250mhz overclock. It could be the power at my place though, I have both 120 and 220 outlets here so it could just be something wonky.

[houndtt]

1 hour ago, leadeater said:

Change your folding name back to what it was originally, the participant list doesn't get updated after start. While I do actually have the data for every hour for the entire LTT team it's hassle to go manually get it out for something like that and I can't really offer to do it anyway since every man and his dog would end up asking 

 

But it's only 2 days so it's good you noticed it soon enough and it's correctable.

Hmm, there was a good reason why I changed my username though. When I started I had it as Michael. On your spreadsheet it listed me as houndtt which is my forum name. When I click my username in the client however I got to a stats page which showed a bunch of points and work units which was not from me (I assume because Michael is a popular name). So I checked that there was no houndtt and I changed my username to my forum name so that everything would be unique to me.

I thought this would match up on your end since you already knew my correct forum name and when I signed up and I don't think I provided a username so I assumed you matched based on my passkey.

[houndtt]

2 hours ago, leadeater said:

https://foldingathome.org/statistics/?lng=en

 

https://apps.foldingathome.org/daily_user_summary.txt.bz2

I do see my stats under houndtt all the way on row 963406 of the text file. I really don't care about the stats accrued under Michael and would really appreciate if you can re-link me as houndtt.

[Needfuldoer]

4 hours ago, justpoet said:

A lot of the LiFe packs have BMS built in specifically to make them drop in replacements for lead in things like golf carts and similar.  So that handles the balancing and the voltages.

Those are the kinds I'm talking about. In theory they're self-contained, drop-in replacements for traditional 5Ah SLA batteries. The question is whether they can handle the load without their BMS cutting off to protect their cells, and if their voltage drops properly as they discharge so the UPS is fooled (instead of suddenly dying when it thinks it still has 80% SOC left).

 

At least there's nothing "smart" about that RBC43, it's literally just a 4S2P pack of 12v SLA batteries that only connects to the UPS with one positive and one negative conductor.

 

One datasheet for the kind of 12v 5A SLA batteries it takes says those can handle a 75 amp load for 5 seconds. The specs for one LiFePo replacement I found say they can only handle a 7.5 amp load for 5 seconds. Assuming my math is correct, does that mean it could only pull 720 watts from the pack for 5 seconds, and then 480 watts continuously?

 

The UPS itself is an APC SmartUPS SMT2200RM2U. The datasheet says its charger is rated for 164 watts, but it doesn't say what its target voltage is. (The pack is 48v nominal.)

 

I think if I embark on any adventures in DIY solar, it's not going to include this thing.

Edited November 9, 2023 by Needfuldoer
My math was not right, now it is. It must be a 4S2P battery because 12 x 2 != 48.

[leadeater]

10 minutes ago, houndtt said:

Hmm, there was a good reason why I changed my username though. When I started I had it as Michael. On your spreadsheet it listed me as houndtt which is my forum name. When I click my username in the client however I got to a stats page which showed a bunch of points and work units which was not from me (I assume because Michael is a popular name). So I checked that there was no houndtt and I changed my username to my forum name so that everything would be unique to me.

I thought this would match up on your end since you already knew my correct forum name and when I signed up and I don't think I provided a username so I assumed you matched based on my passkey.

Duplicate folding names isn't actually a problem, that's what the passkey is for. Anyway I'll check and make sure changing it won't break your starting points which would also break the daily points, if it's not a problem I'll change it.