Posts by Dataman

1) Questions and Answers : Issue Discussion : GPU Utilization and Resource Requirements (Message 1096)
Posted 19 Feb 2021 by Dataman
Post:


An option would be to do something similar to Einstein@Home where GPU utilization factor can be set in user preferences, instead of having to make our own `app_info.xml` file. In this way you offload the problem of resource scheduling to the BOINC client, for which it's quite well designed to do, and for free.

Agree!!! That is why I do not run GPU work here very often as I do not customize my config. files for individual projects. The manner in which Einstein does it makes it very easy to tune # wu's/GPU. My 2 cents.
Cheers
2) Questions and Answers : Issue Discussion : Quantum brain (Message 1073)
Posted 2 Feb 2021 by Dataman
Post:
Found this to be interesting.

https://www.nature.com/articles/s41565-020-00838-4
3) Message boards : Cafe : Nature Article: AI will change the world, so it’s time to change AI (Message 936)
Posted 14 Dec 2020 by Dataman
Post:
https://www.nature.com/articles/d41586-020-03412-z?utm_source=Nature+Briefing&utm_campaign=ad624b02ae-briefing-dy-20201214&utm_medium=email&utm_term=0_c9dfd39373-ad624b02ae-45627838
4) Questions and Answers : Unix/Linux : GPU support update 11/23 (Message 878)
Posted 23 Nov 2020 by Dataman
Post:
EUREKA! I have a GTX980Ti running on Ubuntu and everything looks great so far. Previously the wu's failed in the first 5 seconds but seem to run normally now. I will monitor to see if they validate. If so, I will add some other Linux GPU's.

My fingers are crossed!

EDIT: Completed and validated. WooHoo!
5) Message boards : Cafe : Geeking out on emerging technologies ... (Message 869)
Posted 20 Nov 2020 by Dataman
Post:
Interesting, thanks.

Can software make medical decisions as accurately as trained professionals can?


How about the legal profession? It would be relatively easy to build a library of every legal decision made, analyze a current case in milliseconds and make a recommendation. However, would society consent to being judged, convicted and sentenced by a machine?

One good thing, it would hasten the rapid extinction of an invasive hominid sub-species homo argumentis ... Lawyers! ;)

Cheers.
6) Questions and Answers : Issue Discussion : All my GPU applications have crushed. (Message 801)
Posted 11 Nov 2020 by Dataman
Post:
I did a check this morning on the GPU's I have running here and the results are quite dismal. While I have a 100% success rate on the Windows machines (I turned off the Linux GPU's), the GPU utilization rate is horrible. My RTX 2080Ti is <1% and twin GTX 1080Ti's are between 1-2%. Even my lowly GTX 750Ti is barely managing 5% utilization. Wasting 1 CPU thread to control a GPU running at <1% will not work for me considering the extra expense of running GPU's. I may, at some future time, try coding one to run multiple wu's/GPU but I doubt even that would get the utilization up to something acceptable. I have never tried running more than 4/GPU before and I do not know if there is some upper limit.

It appears you have moved GPU's into production. If so, mine would be better served running other projects. I like this project and will continue to run some CPU wu's.

Cheers!
7) Questions and Answers : Issue Discussion : All my GPU applications have crushed. (Message 784)
Posted 9 Nov 2020 by Dataman
Post:
GTX 750Ti [if it runs on this ancient card it will run on anything ;)]
I wouldn't write off a GTX 750 Ti altogether however. Even though it is arguably ancient technology, at 30$ a piece second-hand on Ebay and @60W TDP it still performs rather solid, and is a great solution for SFF cases or cases with bad airflow as the low TDP tends to keep the card on the cool end anyway. With the recent CUDA support that has been rolled out at Folding@Home on some cores, specific workloads such as the weekly sprint WUs finish considerably faster. It manages ~24 WUs a day and that equates to ~250k credits. On GPUGrid this card can also manage ~120k credits. I'd say this is still some science done at the end of the end while not being the most efficient card performance out there now. Compared to modern cards, that is of course nothing but I rather tend to look at projects that offer both a CPU and GPU app version for comparison and my GTX 750Ti always wins performance and efficiency-wise against the Xeon X5660 @95W that accompanies this CPU. Anyway, I just hope that the new RTX 30xx Ampere and new Radeon RX 6000 series cards will push prices of last generation cards further down. Still looking for a GPU upgrade myself but haven't figured out yet what offers the best value. RTX 2060/1660Ti cards seem rather affordable right now as do the lower end new Ampere cards. Don't know about the Radeon cards as I would likely miss CUDA for some projects.

Will run the first GPU WUs soon and I am already excited to see the results.




It's sloooooow. The only reason it has not been pitched into the recycle bin is that it is in an Alienware R2 with a wimpy, non-modular PSU. Upgrading the PSU to a bigger, modular one so I can upgrade the GPU has not made the top of the "to do" list. I rarely crunch with it but thought it would be worth testing for this project. It is working OK but takes nearly 2 hours.
Cheers.

@ Pianoman: I upgraded the driver on the Linux machine with the GTX 980Ti but have a 100% failure rate (as opposed to Win10 with a 100% success rate). I need to do more investigation. Anyone else having problems with Linux/GPU?
8) Questions and Answers : Issue Discussion : All my GPU applications have crushed. (Message 778)
Posted 9 Nov 2020 by Dataman
Post:
I am seeing success here. Only one problem with a Linux machine which is on my end (driver).

So far, I am running:

Windows:

1 x RTX 2080Ti
4 x GTX 1080Ti
2 x GTX 1080
1 x GTX 1070
1 x GTX 1060
1 x GTX 750Ti [if it runs on this ancient card it will run on anything ;) ]

Linux:

1 x GTX 980Ti (I need to install a new driver; will do later.)

Running multiple GPU's now appears to work. Project initiation time is >10 min (for me) but new work download time is nominal.

Good work, pianoman & Team.
9) Questions and Answers : Issue Discussion : Project Preferences for GPU (Message 716)
Posted 27 Oct 2020 by Dataman
Post:
I removed MLC and reinstalled it and it looks OK now. Looks like I will have to do that 24 more times. :(
10) Questions and Answers : Issue Discussion : Project Preferences for GPU (Message 708)
Posted 27 Oct 2020 by Dataman
Post:
Maybe you should try manually re-setting the prefs (as in say "edit prefs" and toggle them, then click save) the way you want them again?

Been there, done that ... got the T-shirt. No joy. I will wait and see what happens when you start sending out wu's. Should be apparent then.
11) Questions and Answers : Issue Discussion : Project Preferences for GPU (Message 706)
Posted 27 Oct 2020 by Dataman
Post:
No worries pianoman. Apparently it is still not working.

10/26/2020 4:49:02 PM | MLC@Home | URL https://www.mlcathome.org/mlcathome/; Computer ID 311; resource share 100
10/26/2020 4:49:02 PM | MLC@Home | Not using CPU: project preferences
10/26/2020 4:49:02 PM | MLC@Home | Not using NVIDIA GPU: project preferences

I rebooted the machine to make sure everything cleared. Checked the MLC preferences are still the same; CPU/No GPU/Yes. Started BOINC. Same result. Actually I cannot verify that it originally worked even before you made the first change as I just accidentally noticed these messages this morning when I rebooted a machine for another reason.

Cheers
12) Questions and Answers : Issue Discussion : Project Preferences for GPU (Message 702)
Posted 26 Oct 2020 by Dataman
Post:
I have my MLC Project Preferences set as:

Use CPU = No
Use NVIDIA GPU = Yes

On BOINC startup I get the following messages for MLC:

10/26/2020 7:07:34 AM | MLC@Home | URL https://www.mlcathome.org/mlcathome/; Computer ID 311; resource share 100
10/26/2020 7:07:34 AM | MLC@Home | Not using CPU: project preferences
10/26/2020 7:07:34 AM | MLC@Home | Not using NVIDIA GPU: project preferences

This is happening across multiple machines (Win10 & Ubuntu) set to accept MLC GPU wu's.
13) Questions and Answers : Unix/Linux : GPU update (Message 697)
Posted 25 Oct 2020 by Dataman
Post:
Will look at fixing the GPU option.


Fixed. Thanks!
14) Questions and Answers : Unix/Linux : GPU update (Message 691)
Posted 25 Oct 2020 by Dataman
Post:
Just to let you know there is progress. This is with a rand_automata/DS3 datafile. Want to get it into testing tonight or tomorrow.

"Use GPU's" should not default to "Yes". The option should default to opt-in not opt-out.
15) Message boards : News : Badges! (Message 642)
Posted 12 Oct 2020 by Dataman
Post:
Wow. Big jump from 1M to 500M.


More like a quantum leap. Maybe GPU's will warp space. :)
16) Message boards : News : Scheduled Server Maintenance (Message 632)
Posted 10 Oct 2020 by Dataman
Post:
Thanks for the advance notice.
17) Message boards : Cafe : What Are You Listening To? (Message 591)
Posted 5 Oct 2020 by Dataman
Post:
For some reason I was reminded of this ...

Billy Joel - Piano Man

https://www.youtube.com/watch?v=gxEPV4kolz0

Cheers
18) Message boards : Cafe : Motherboard / heatsink advice for AMD Ryzen chips (Message 587)
Posted 4 Oct 2020 by Dataman
Post:

Regardless of what cooler you use, and whether it's air or water, I suggest that instead of using any sort of thermal paste, you use this graphite cooling pad: https://www.amazon.com/Innovation-Cooling-Graphite-Thermal-Pad/dp/B07CKVW18G/ It comes in 30mm and 40mm sizes, cools better than paste, never dries out, and is reusable. Besides being better in general, it also makes swapping coolers for testing much easier!


Thanks for bringing that up, Michael. I too can recommend these for the same reasons you mentioned. Costs less than a tube of "goo" and the necessary removal and cleaning compounds; works great for me and one never needs to do it again.
19) Message boards : Cafe : Motherboard / heatsink advice for AMD Ryzen chips (Message 585)
Posted 4 Oct 2020 by Dataman
Post:

I recently read a lot about the bad quality of their boxed coolers and wanted to know what heatsink/fan combo you are running with. How hot do those chips run under full load?

My Threadrippers (1950x) are liquid cooled and are limited to 68C max at 100% CPU load. I would not recommend air cooling but that is just my personal preference.
20) Questions and Answers : Unix/Linux : GPU update (Message 573)
Posted 3 Oct 2020 by Dataman
Post:
I too would expect a MUCH larger reduction than a mere 40%. Using my MLC CPU averages across my 350 threads of ~ 2 hours, I would expect run times of <20 min on a GTX 1080Ti and <10 min on a RTX 2080Ti and half of that on the latest GTX/RTX 30x0 (for those who can afford the ridiculous price).

Unfortunately I have only 3 x GTX 970's on Linux (Ubuntu) machines and will run them when you are ready to test. The 15 x GTX10x0 & RTX2080Ti & the one wimpy GTX 750Ti are Win10 but will add them too when you are ready.

Best of luck!


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A project of the Cognition, Robotics, and Learning (CORAL) Lab at the University of Maryland, Baltimore County (UMBC)