Posts by Eric Driver

21) Message boards : Number crunching : Issues with GPU's (2 issues) (Message 3348)
Posted 13 Sep 2022 by Profile Eric Driver
Post:
Issue 1: neither of my intel GPU's are getting tasks (HD 520, HD 4600).
standard event log of requesting tasks for intel GPU, got 0 new tasks, delay of (-) seconds.
Issue 2: Project is not using one of my AMD GPU's correctly (AMD R5 240), Its a relatively slow GPU but it never goes past 7% usage with number Feilds tasks ultimately causing the task to eventually fail, while my AMD Rx 460 gets used at 98% consistently. My guess is that this specific GPU is not on the GPU table.


I'm not sure how well the intel GPUs will do, but it should give them work if they support openCL. Do you have beta apps enabled?

I would expect the older AMD card to not work well due to the computational load, which is what you are seeing. The GPU table is only for fine tuning some parameter settings; if your card is not in the table then it uses default settings.
22) Message boards : Science : Availability of source code (Message 3345)
Posted 10 Sep 2022 by Profile Eric Driver
Post:
I am not an expert in computational number theory, but upon reviewing a bit the present code, I think that there is not a lot of improvement we can do without algorithmical advance or changing GMP for the CPU code. For the algorithmic part, it is clear. For GMP, it is because most of the computation is arithmetic using GMP, which means that the speed mostly depends on how GMP is doing. However, GMP is a generic arbitrary precision library, meaning that there are some internal managements that are done to check which algorithm to apply. This in general gives an overhead, and probably also forbids any kind of vectorisation except those already in GMP.

One idea is, from the CUDA code we can see that there is a natural bound on numbers that are used in the computation. If they all fit in 128 bits, then gcc supports __int128. Otherwise, it might (!) help the speed by using or writing an emulated type in which the numbers fit, like the one used in the CUDA code. In this way, at least gcc would have more clues to vectorize (or not!).

fwjmath.


Thanks for the analysis. One thing I will point out is, the numbers grow to almost 1000 bits in size in the later passes through the loop.
23) Message boards : News : New badge type (Message 3335)
Posted 30 Aug 2022 by Profile Eric Driver
Post:
Please add the other sub-field badges. How many sub-fields are involved in this project. I currently have counts on Decic and Q(Sqrt[-10]). I have no counts on Septic.

Thanks

Lorenz H. Menke, Jr.


Septics was an old search from several years ago, so there are no more of those. After the current subfield, there are only 2 more left. I will add badges for those when we get there. Be patient.
24) Message boards : Number crunching : Certificate of Computation (Account) (Message 3323)
Posted 18 Aug 2022 by Profile Eric Driver
Post:
Hello

Information:

The Date in the Certificate of Computation (Account) is - 1 January 1970 - .
It should be the current Date Today (also).

I also see this right above the Certificate of Computation (Account) ..outside the frame:
Warning: time() expects exactly 0 parameters, 1 given in /home/boincadm/projects/NumberFields/html/user/cert1.php on line 27

This should be corrected.

Thank you in advance.


This should be fixed now. Thanks for letting me know.
25) Message boards : News : Future of the Project (Message 3319)
Posted 12 Aug 2022 by Profile Eric Driver
Post:
In worst case is it possible to organize the server at home. I think it should not be very powerful: i7/32GB/10TB.

I think our communitee can help with all expenses (hardware, electricity, new domain etc) if you organize donations.

Similar to Primegrid:
https://www.primegrid.com/donations.php


I don't have enough bandwidth at home to handle the load, which was the main advantage of ASU. Besides, my ISP blocks ports 80 and 443 (and others). I would have to purchase a high speed dedicated connection and last I checked they were over $150 per month.
26) Message boards : News : Future of the Project (Message 3317)
Posted 11 Aug 2022 by Profile Eric Driver
Post:
Thanks all for your comments. The problem is not the cost of the hardware, and I could even donate that myself to the University if it would help. I think the biggest issue is the server maintenance. I don't actually work for the University, so they need to get the IT department to do the install of any donated hardware (if they will even accept it), and that's a hassle for them. They had no problem doing it for a tenured professor, but now there is no one to fight that battle. If I was more of a people person and knew who's butt to kiss I might be able to make it happen, but that's not who I am. Anyways, I hope the hardware has several more years left in it, so this all becomes a mute point.

It sounds like the University owns the server. Is there a possibility that they might want to repurpose that server for something else sometime in the future and you lose the entire server?


The math department owns the server and they agreed to let it keep hosting the NumberFields project. But I guess they could always change their minds down the road.
27) Message boards : News : Future of the Project (Message 3314)
Posted 11 Aug 2022 by Profile Eric Driver
Post:
Thanks all for your comments. The problem is not the cost of the hardware, and I could even donate that myself to the University if it would help. I think the biggest issue is the server maintenance. I don't actually work for the University, so they need to get the IT department to do the install of any donated hardware (if they will even accept it), and that's a hassle for them. They had no problem doing it for a tenured professor, but now there is no one to fight that battle. If I was more of a people person and knew who's butt to kiss I might be able to make it happen, but that's not who I am. Anyways, I hope the hardware has several more years left in it, so this all becomes a mute point.
28) Message boards : News : Future of the Project (Message 3313)
Posted 11 Aug 2022 by Profile Eric Driver
Post:
I'm still looking forward to your future publications on current search. The cost of a publication may be way more than a new hard drive. So will we continue the project without the possibility to publish our results? Or better show the university that this project needs more funding by publishing our results and hopefully attract some grants. NFS@home said disk storage is cheap now. I don't want to see Numberfields@home being stopped by this.

We would need to complete the searches over the 3 remaining subfields to have something that's worthy of publication. But regardless of publication, all fields are uploaded to the LMF database, so the computations are not in vane.
29) Message boards : News : Future of the Project (Message 3308)
Posted 11 Aug 2022 by Profile Eric Driver
Post:
I'm very sorry to hear this!! Is there a way you can put up a donation link to fund a new hard driver etc now so when you need one the amount needed is at least than a complete shutdown?


I had this conversation with them a few years back regarding donations, and the University would not do it. I can't remember if it was against their rules or maybe it was a legal issue. I could try again. Or possibly move the project somewhere else and use GoFundMe to pay for the hosting.
30) Message boards : News : Future of the Project (Message 3304)
Posted 10 Aug 2022 by Profile Eric Driver
Post:
I've been procrastinating in sharing some news and I finally got around to doing it.

My old thesis advisor who has been backing this project retired in May. I don't actually work for the university, so this means the project has lost is primary benefactor.

The good news is that the university has allowed the project to continue. The bad news is that they will not be supporting any more hardware upgrades. This means when the current hardware fails the project will come to an end.

I'm hoping the current hardware can last several more years. One of the most critical parts is the hard drive, and we just got a new one about 1.5 years ago. Given that the previous hard drive lasted over 4 years, this is a positive.

This news has played into my reasoning on the order of the searches. Given that sf3 is practically guaranteed to be complete, I though it was prudent to use our finite time to first concentrate on sf7. The short term goal is to get sf7 to the same state that sf3 is currently in, which should take us into early next year. At that point, we can either spend the time to finish off sf3 and sf7, or continue on with sf6. Doing sf6 will allow us to find more fields in the finite time we have left, but finishing off sf3 and sf7 will allow us to say with 100% certainty that they are indeed complete. I am leaning towards finishing off sf3 and sf7, but that may change as time goes on.
31) Message boards : Science : Possible not to overclock for client (Message 3302)
Posted 28 Jul 2022 by Profile Eric Driver
Post:
Hi,
is it maybe possible not to overclock the calculating activity for clients?

There should be no reason why you can't overclock, other than overheating your system. With the right cooling you should be ok.
32) Message boards : News : New badge type (Message 3301)
Posted 28 Jul 2022 by Profile Eric Driver
Post:
It is interesting, when are you going to resume Search 3?

Probably not until early next year. We are getting more bang for the buck with sf7 at this point.
33) Message boards : News : New badge type (Message 3297)
Posted 13 Jul 2022 by Profile Eric Driver
Post:
The fields are rare, on average approximately 1 per 1000 WUs.
34) Message boards : News : New badge type (Message 3294)
Posted 13 Jul 2022 by Profile Eric Driver
Post:
Is the count that the badges are based on shown on the User page ??

I have the following counts on my page is one of them the one ??

Decic count 87
Septic count 11,258
ℚ(√-10) count 1


Yes, its the ℚ(√-10) count, otherwise known as "subfield 7".
35) Message boards : News : New badge type (Message 3291)
Posted 5 Jul 2022 by Profile Eric Driver
Post:
Cool! How many fields do you need for every color? 10 - 50 - 100?


That is correct, 10-50-100.
36) Message boards : News : New badge type (Message 3289)
Posted 4 Jul 2022 by Profile Eric Driver
Post:
The badges have now been implemented. The badge is a portrait of Galois, considered by many as the founder of field theory.

There are currently 3 levels of badges: bronze star, silver star, and gold star. Some more levels may be added at a later date.
37) Message boards : News : New badge type (Message 3288)
Posted 3 Jul 2022 by Profile Eric Driver
Post:
So, how do i know what my status is on sf7? (or any subfield) Will you also break out those stats on our account page?


The counts are implemented, I just need to add the software hooks to display them on the various web pages. Until I do so, you wont know your status.


The new field counts are now on the stats page and the account page (I believe that's all the pages that need it). I still need to implement the badges.
38) Message boards : News : New badge type (Message 3287)
Posted 2 Jul 2022 by Profile Eric Driver
Post:
So, how do i know what my status is on sf7? (or any subfield) Will you also break out those stats on our account page?


The counts are implemented, I just need to add the software hooks to display them on the various web pages. Until I do so, you wont know your status.
39) Message boards : Number crunching : Unable to add team admin (Message 3283)
Posted 2 Jul 2022 by Profile Eric Driver
Post:
If nothing else works, I can manually add the other team member as an admin for you. Just let me know.


Yes, I did everything correctly and I started again several times.
If you can do it manually, I would appreciate it :)


Ok, I added your teammate as an admin.
40) Message boards : News : New badge type (Message 3280)
Posted 1 Jul 2022 by Profile Eric Driver
Post:
To help increase interest in the project, I am creating a new badge based on fields counts, and tuned especially towards subfield 7. If this works well, I will also create separate badges for the other subfields.

I already put the hooks in to keep tract of the field counts for sf7. Now it's just a matter of creating the badge images, etc. Hopefully that should be done in the next several days.

Happy crunching!


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