Posts by Jeff Buck


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1) Message boards : Number crunching : Panic Mode On (92) Server Problems? (Message 1605966)
Posted 22 days ago by Profile Jeff BuckProject donor
I notice that the SSP seems to cough up this hairball,
Warning: number_format() expects parameter 1 to be double, string given in /disks/carolyn/b/home/boincadm/projects/sah/html/seti_boinc_html/sah_status.php on line 417

any time the "Results received in last hour" for AP drops to zero. Perhaps a "divide by zero" type of error that's now showing up as we start to hit bottom.
2) Message boards : Technical News : I was right... (Nov 24, 2014) (Message 1605947)
Posted 22 days ago by Profile Jeff BuckProject donor
Wahoo 6% of the total asked for in the Fund raiser at bitcoin Utopia we have now beat the last fund raiser wahoo $62 bucks

where still not got 100 users doing the cuda or cpu mining while the site is down come on guys 1 computer doing the fund raiser ?

Thanks to whom ever are the ones with the ASIC miners we mite be able to do it this time .

Have been mining a little bit but it doesn't pay 1.2 mill credits per WU... I'm wondering if it would be a good idea getting one of those ASIC mining machine things and how difficult it is getting it running. Checking Youtube vids it doesn't seem that hard...

You might be interested in this post from Bitcoin Utopia.

Average profitability for SHA-256 mining according to www.multipool.us has now dropped to 0.00002 BTC/GH/day => 60 Billion Credits ~ 1 BTC
(1.2 Millon divided by 0.00002 = 60 Billion)

With the recent drop of BTC vs. USD (it's now at 380 USD/BTC, has been at 440 24 hours ago) that's 155 Million Credits ~ 1 USD
(60 billion divided by 380 = 155 Million)

It's a couple months old, but I don't imagine it's that far off the current "credits to dollars" ratio, since Bitcoin seems to be down to ~$371/BTC at the moment. The Peercoin they seem to be mining now might be somewhat of an improvement. Still, you're probably looking at needing quite a few million credits in order to generate the equivalent of $1 for the project.

Edit: Well, that 155 Million figure might be low. I see the top 2 producers for Campaign 5, STE\/E [BlackOpsTeam] and Bryan, combined already have 11,932,800,000 credits which, divided by 155M should be about $77 (less the 10% BU cut, I suppose), just for those 2, but the project total looks to be less than $75 as I write this.
3) Message boards : Technical News : Status Update (Nov 19, 2014) (Message 1605944)
Posted 22 days ago by Profile Jeff BuckProject donor
Just an idea, don't know how local govt works in the USA, but I worked for local govt for a while here in the UK, and they leased quite a bit of hardware, and it eventually became redundant due to newer kit being leased.

Thing is when we wanted to return some of the leased kit to the provider, they couldn't be bothered with it, since it wasn't the latest and greatest and it cost time and dosh to pick it up.

So it got given away. I ended up with an old server that I scrapped for parts..

So I'm wondering if the same sort of situation applies in the USA, when some govt dept or large corporation upgrades their kit, what happens to the replaced stuff? Does it get returned or sold off, or just scrapped?

Perhaps someone local to S@H could do a bit of sleuthing around and see what 'might' be available? Same thing might also apply to software..

Regards,

Here's a couple of links to government surplus liquidations of mostly obsolete computer equipment:

http://www.govdeals.com/index.cfm?fa=Main.AdvSearchResultsNew&searchPg=Category&additionalParams=true&sortOption=ad&timing=BySimple&timingType=&category=29
http://www.publicsurplus.com/sms/browse/cataucs?catid=1

Not exactly giveaways, though, but auctions. Sometimes single items, sometimes entire pallets of stuff, most of it not particularly useful anymore. I used to pay attention to these, but haven't in a long time.
4) Message boards : Number crunching : web site error (Message 1605903)
Posted 22 days ago by Profile Jeff BuckProject donor
Looks clean from here now, too. I tried it both logged in and logged out, just in case there was some connection, but no problems encountered this evening.
5) Message boards : Number crunching : Panic Mode On (92) Server Problems? (Message 1605499)
Posted 23 days ago by Profile Jeff BuckProject donor
And for those whom have used the excuse of , it's better to turn your machines off and save some cash . I WILL BE EXPECTING THAT ONCE THE SITE IS GOING YOU ARE ALL GOING TO SEND THAT MONEY YOU SAVED TO SETI AS A DONATION .

That's right i'm calling you out on this .

It's hardly an "excuse". It's the most sensible approach for all those without ASIC mining hardware and is likely to benefit the project far more than BU.

My first installment (for 3 days of savings) can be found in Message 1602609. The next 7 days is covered here:
Your gift details… You gave to: SETI@home We received your gift of $39.00 via ********* on 11/25/2014. Your confirmation number is 142482.


...we can do better than 37 users doing cuda and 71 users doing cpu

That's preciously the kind of mining that is most likely to yield negative $$ for the project (vs. direct donations), unless the cruncher's electricity is really, really cheap.
6) Message boards : Number crunching : web site error (Message 1605475)
Posted 23 days ago by Profile Jeff BuckProject donor
I didn't run into any problems on the donation page itself this evening, but the Donation History page looks pretty ugly at the moment.

Notice: Undefined variable: totalarray in /disks/carolyn/b/home/boincadm/projects/sah/html/seti_boinc_html/donation_history.php on line 183 Notice: Undefined index: 112012 in /disks/carolyn/b/home/boincadm/projects/sah/html/seti_boinc_html/donation_history.php on line 183 Notice: Undefined variable: numarray in /disks/carolyn/b/home/boincadm/projects/sah/html/seti_boinc_html/donation_history.php on line 184 Notice: Undefined index: 112012 in /disks/carolyn/b/home/boincadm/projects/sah/html/seti_boinc_html/donation_history.php on line 184 Notice: Undefined index: 122012 in /disks/carolyn/b/home/boincadm/projects/sah/html/seti_boinc_html/donation_history.php on

That goes on for about 40 more lines.
7) Message boards : Number crunching : Seti fundraising via Bitcoin Utopia (Message 1605445)
Posted 23 days ago by Profile Jeff BuckProject donor
With that kind of processing rate. One of the specialized ASIC miners that runs ~100GH/s & uses about 100w mining Bitcoins for me would net about $5.94/yr after factoring electric costs.

Does that also account for the 10% rake that BU is taking off the top of the total mined (not the net), and any pool fees that aren't included in that 10%? :-)

Bitcoin utopia uses various coin types for their campaigns. Some are more cost effective than others from what I have read. With Bitcoin being one of the hardest/most costly to mine. It looks like the primary type for the SETI@home campaign is Peercoin.

Peercoin certainly looks like it might be more economical to mine but, as with just about everything in this murky cryptocurrency world, it's kind of hard to pin down anything concrete. A quick search turned up a Peercoin Mining & Profit calculator, but I have no way of knowing how plausible the estimates are or whether there's actually any way to tie those numbers to what goes on over at Bitcoin Utopia. It gives me a headache trying to make sense of the intricacy of it all! ;^)
8) Message boards : Technical News : I was right... (Nov 24, 2014) (Message 1605155)
Posted 24 days ago by Profile Jeff BuckProject donor
If you're looking for another use to which to put your computer, some of our crunchers encouraged me to create a SETI@home fundraising campaign at Bitcoin Utopia. It allows you to use BOINC to generate donations in cryptocurrencies like bitcoin SETI@home.

FWIW, unless a cruncher has ASIC mining hardware or really, really cheap electricity, it appears to me that using CPUs/GPUs for Bitcoin Utopia would benefit the project far less than simply saving the electricity and donating some or all of that savings directly to S@h.
9) Message boards : Number crunching : Seti fundraising via Bitcoin Utopia (Message 1605091)
Posted 24 days ago by Profile Jeff BuckProject donor
Does anyone know of a conversion from wu to bitcoin to dollars to Seti?

Although it doesn't directly answer your question, I found this message over in the Bitcoin Utopia forum:
It's possible to give some estimates using this Bitcoin Mining Calculator.

If you have a 1 GH/s bitcoin miner and you are running it 24/7, you are mining about 0.00038 bitcoins a month. That's about 0.14 US dollars a month.

I believe that only dedicated ASIC hardware would meet or exceed that 1 GH/s hashrate that he mentions. For GPUs and CPUs, there's a somewhat outdated chart in this Wiki. However, I think the first paragraph is about all most of us need to read:
Due to the rising hashrate of the bitcoin network caused by the introduction of ASICs to the market, GPU mining Bitcoins has become impracticable. The hashrate of most GPU units is below 1GH/s, and as of 2014, some single ASIC units are able to reach speeds of over 1,000GH/s while consuming far less power than used by a GPU.

So, my own choice is simply to save the electricity and dedicate a percentage of the money I'm saving during this outage directly to the project. As always, YMMV. ;^)
10) Message boards : Number crunching : Panic Mode On (92) Server Problems? (Message 1603693)
Posted 27 days ago by Profile Jeff BuckProject donor


Has anybody else noticed WUs like this in their pendings?


Yup, I've got about 14 v7 AP's awaiting validation since the 10th/11th of thiws month. I just assumed the validators were hiccuoing along with everything else ;-)

doubtless it'll sort itself out given time.

P.

Actually, the APs are a separate issue, due to the AP database problems they've been having for several weeks. I should have been more explicit in specifying that the WUs that apparently missed the validators on Monday were MBs.
11) Message boards : Number crunching : Panic Mode On (92) Server Problems? (Message 1603679)
Posted 27 days ago by Profile Jeff BuckProject donor
I was just looking through my pendings and noticed that there was apparently about a 2 hour period on Monday when either the validators or transitioners weren't doing their job. I've got quite a few WUs where there are no tasks "in progress", where the last host reported its task on 17 November between about 19:42 and 21:51 UTC, but apparently missed the validator, leaving the WU in "Completed, waiting for validation" status for both of us. Examples:

http://setiathome.berkeley.edu/workunit.php?wuid=1641206662
http://setiathome.berkeley.edu/workunit.php?wuid=1641182095
http://setiathome.berkeley.edu/workunit.php?wuid=1640583179

Apparently, these will have to wait for a "second chance" validation when the original deadline is reached.

I've also got at least one where the host which reported in that Monday window had a computation Error, which should have resulted in a _2 task being sent out, but it wasn't. To me, that doesn't seem like a validator issue, but perhaps a transitioner one? Here's that WU:

http://setiathome.berkeley.edu/workunit.php?wuid=1640765912

Has anybody else noticed WUs like this in their pendings?
12) Message boards : Number crunching : Seti fundraising via Bitcoin Utopia (Message 1602834)
Posted 29 days ago by Profile Jeff BuckProject donor
My home machine are on because they are doing other tasks rather than purpose built to run SETI@home. If I was paying as much per KW/h as you. I would probably let mine run idle rather than run other projects. Running SETI@home adds ~8-9 KW/h a day to my usage. I have found running Bitcoin Utopia adds ~6-7 KW/h a day.

Only my little old ThinkPad actually needs to run 24/7, and it only manages a couple of WUs per day on its single-core Pentium M. My daily driver only needs to be on about 14 or so hours a day, but I was running it 24/7 just to support S@h. Now, since it's out of work, it gets shut down before I go to bed. My other 4 active machines were cobbled together just for S@h.

My electric rates are tiered over the course of each month, and also have on-peak and off-peak periods over the course of each week. The lowest (Tier 1) rates are only about 37% of the highest (Tier 4) rates, but only about 14% of my usage gets that lowest rate, while about 55% is at the highest rate. I don't even run the crunch-only machines during the peak periods, because that would really jack up my costs!

In any event, I know what my rates are, and I know how much juice each machine uses, so it would definitely be possible for me to figure out what any payback would be from something like Bitcoin Utopia, if the production rate was available. However, I haven't seen anything to indicate what that might be. I suspect, though, that any crunchers who want to put cash in the projects offers, and who don't have very cheap electricity, would be better off making direct contributions.
13) Message boards : Number crunching : Seti fundraising via Bitcoin Utopia (Message 1602609)
Posted 29 days ago by Profile Jeff BuckProject donor
My machines started running out of work on Saturday and, since there are no other BOINC projects that I currently support, I shut them down as the WUs ran out. Checking my electric usage from Saturday through Monday, I can see that I've used 64.24 Kwh less than the same period in the previous week. At Tier 4 Off-Peak Winter rates, that translates into a $17.53 cent reduction in my electric cost for those 3 days.

Now, I suppose I could fire up those machines again to run Bitcoin Utopia, but I seriously doubt that 64.24 Kwh of usage would generate $17.53 in benefits for S@h. In fact, I'm going to hazard a guess that it wouldn't even generate 80% of that amount. (I could certainly be wrong about that, but that's why I was asking my original question.) Frankly, I'd rather save my electricity (and the environment) and turn some of my savings directly over to S@h. So, using my 80% guesstimate, I'll put my money where my mouth is:

Your gift details… You gave to: SETI@home We received your gift of $14.00 via xxxxxxxxx on 11/19/2014. Your confirmation number is 139610.
14) Message boards : Number crunching : Seti fundraising via Bitcoin Utopia (Message 1602393)
Posted 19 Nov 2014 by Profile Jeff BuckProject donor
Milkyway gained over $3,000 in fundraising from Bitcoin Utopia. This has potential to be significant for the funding Seti needs.

That doesn't actually answer my question. If that $3,000 required more than $3,000 in electricity to generate it, then it's a net loss to the project (versus direct contributions equivalent to the electric costs) and environmentally costly at the same time.

So, to figure out if it's advantageous or not, it seems to me that there needs to be a way to come up with some sort of cost / benefit ratio for this kind of approach. Is there?
15) Message boards : Number crunching : Seti fundraising via Bitcoin Utopia (Message 1602352)
Posted 19 Nov 2014 by Profile Jeff BuckProject donor
Just out of curiosity, how can you tell if the value of the coins you mine is greater than the cost of the electricity you use to mine them?
16) Message boards : Number crunching : Lunatics Windows Installer v0.43a Maintenance Release (Message 1601640)
Posted 16 Nov 2014 by Profile Jeff BuckProject donor
Even though the Lunatics MB GPU apps are actually the same as the stock MB GPU apps, you still need to select one of them in the Lunatics installer. Once an app_info.xml file is in place, the original stock apps go away.

The good news is that you don't need to start all over again. Just re-run the Lunatics installer and select the same CPU app as you did before, along with one of the GPU apps. The installer should simply stop BOINC and restart it again without your intervention, then download the files for the GPU app you selected.

The bad news is that S@h will probably run out of new tasks in the next several hours. Such is life!
17) Message boards : Number crunching : Lunatics Windows Installer v0.43a Maintenance Release (Message 1601496)
Posted 15 Nov 2014 by Profile Jeff BuckProject donor
If you have the time (and patience), take a look at a thread I started about a year ago, when I had just switched one of my machines over from stock to Lunatics: What, exactly, does APR measure, and is it meaningful?

I used 6-week intervals in order to get what I felt were fairly stable measurements. Later conversions of 3 more of my machines to Lunatics yielded similar results, with a CPU-only laptop showing significant improvement, while a machine that gets most of its productivity from MB GPU work shows essentially no improvement at all (due to the fact that stock and Lunatics is the same app for MB GPU processing).
18) Message boards : Number crunching : Panic Mode On (91) Server Problems? (Message 1598900)
Posted 9 Nov 2014 by Profile Jeff BuckProject donor

However the AP validators, assimilators & splitters still all remain offline.

Also MB results waiting DB purging is over 1.8 million results it has been hovering between 1.7 and 1.8 for a few days now. I think this is to do with some services still not running on the up load server

MB results waiting DB purging has averaged 1.55 million for the last year.

sah_purge

Thanks Richard, I was unaware it had been a round 1.5 million for a year

Since results are purged about 24 hours after validation, I suspect that multiplying the "Results received in last hour" number by 24 will usually give a rough approximation of the "Results waiting for db purging" figure. Of course, server outages would screw that up a bit.
19) Message boards : Number crunching : Panic Mode On (91) Server Problems? (Message 1598143)
Posted 7 Nov 2014 by Profile Jeff BuckProject donor
Doesn't seem likely, given that the servers run on UTC, but as Ford said to Arthur on Fintlewoodlwix, in an infinite universe, anything is possible.


Answer is 42

Well, the answer may be 42, but what was the base: decimal, hexadecimal, octal, ...?? It was a very advanced computer, after all. ;^)
20) Message boards : Number crunching : Why is this invalid (Message 1598142)
Posted 7 Nov 2014 by Profile Jeff BuckProject donor
All that Claggy said makes sense here.
Additional the upload server problem on 3rd Nov should also be taken into account. Eventually that caused some corrupted input for validation.

I don't see why it would.

If not corrupted, then more likely just lost or dropped result files when they recovered the server. I've had 5 of these invalids so far, myself, 3 on one machine and 2 on another, all reported on November 3.


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