Posts by Frizz

1) Message boards : Number crunching : Bitcoin Mining (Message 1259811)
Posted 13 Jul 2012 by Profile Frizz
Post:
Currency is basically worth whatever people agree it is worth. Nothing more, nothing less. The definition of "worth" and "people" are open to discussion, of course.


+1

Basically it's: "currency = trust".

Without trust, there's no currency.

When trust is gone, this happens (beer becomes pretty expensive *g*):



But what happened to the Zimbabwean dollar can also happen to Bitcoins. Or to the Euro. Or to the US dollar.

My personal bet is: Bitcoins will still be worth something - long after the US dollar has gone down the drain ...
2) Message boards : Number crunching : Bitcoin Mining (Message 1259120)
Posted 11 Jul 2012 by Profile Frizz
Post:
Bitcoin mining is a joke of a pyramid scheme, ...


And so is any currency. Even the Euro, and even more the USD.


3) Message boards : Number crunching : Astropulse: Blanking again :( (Message 1254679)
Posted 2 Jul 2012 by Profile Frizz
Post:
6 of the 11 AP units that just got validated have this
In ap_remove_radar.cpp: get_indices_to_randomize: num_ffts_forecast < 100.  Blanking too much RFI?
  percent blanked: 100.00


So 8 MB of downloaded data for 3 seconds of computation!

Please! Can we finally get rid of this **** blanking? It's an ongoing issue for years now.
4) Message boards : Number crunching : Astropulse / not running? (Message 1250651)
Posted 23 Jun 2012 by Profile Frizz
Post:
OK. Thanks for your replies.

I just updated my client & already got my first AP 6 WU. Problem: "Timed out - no response".

Sent:                 23 Jun 2012 | 21:41:33 UTC 	
Reported or deadline: 23 Jun 2012 | 21:45:50 UTC


How can this be?!?!

http://setiathome.berkeley.edu/results.php?hostid=6709833
5) Message boards : Number crunching : Astropulse / not running? (Message 1250607)
Posted 23 Jun 2012 by Profile Frizz
Post:
Hi I haven't been crunching for some tome. When I look at the Server Status page I see only 0's for Astropulse.

Can someone please give me an update what's going on with Astropulse?
6) Message boards : Number crunching : 62 AP_V5 Left In The Field (Message 1243502)
Posted 8 Jun 2012 by Profile Frizz
Post:
An AMD E350 is a silly processor to use on Boinc

Seems like my 10 years old AthlonXP 2000+ with the optimized app is about 1.5x faster. OK, that's per core, but anyway...

But the E350 includes an OpenCL capable GPU which could change that picture. 
                                                                   Joe


It crunches (OpenCL) Astropulse units twice as fast as my Intel ION did (at the same low power consumption).
7) Message boards : Number crunching : Different SandyBridge CPUs in what difference? (Message 1207379)
Posted 18 Mar 2012 by Profile Frizz
Post:
It is not hard to choose then. If I wanted 3 PCIe x16, I would take AsRock Z68 Extreme4 Gen3.


I switched to ASRock a few years ago and never had any problems with them (had 5 boards in total so far). Plus their customer support is awesome: You can email them and they really spend some time & try to find a solution / answer for your questions. Haven't had that level of support from any hardware vendor since the ... hmmm ... late 80's ? ;)
8) Message boards : News : Astropulse v6 has been released for linux and windows. (Message 1205802)
Posted 14 Mar 2012 by Profile Frizz
Post:
It'll take a while for the credit granted by this application to settle out to a reasonably constant value. ...


"a while" as in years?

For the "old" apps the credit system still seems to be a random number generator ...
9) Message boards : Number crunching : a thought about bandwidth (Message 1179399)
Posted 19 Dec 2011 by Profile Frizz
Post:
What we really need is increased runtimes. That would solve all of our problems.
10) Message boards : Number crunching : Astropulse - more info from the Seti gods please (Message 1172239)
Posted 19 Nov 2011 by Profile Frizz
Post:
Comprehensive list of promising Gaussian candidates -
http://seticlassic.ssl.berkeley.edu/Candidates/index.html


It says "Last Updated November 6, 2002".

That's what I mean with: "a little bit more public relations would be nice".
11) Message boards : Number crunching : Astropulse - more info from the Seti gods please (Message 1171922)
Posted 18 Nov 2011 by Profile Frizz
Post:
How much PR do you expect from four part time staff?


Enough to convince me to keep on crunching.

I am surprised that there are not more people here asking (themselves?) the same question.

imho S@H is too much of a black box.
12) Message boards : Number crunching : Astropulse - more info from the Seti gods please (Message 1171911)
Posted 18 Nov 2011 by Profile Frizz
Post:
I'm also curious, of course, but until the re-observations are complete and any findings peer reviewed I don't expect any public statements.


It always surprises me how much time, money & electricity the participants here are willing to spend on S@H - for so little, let's call it, "public relations".
13) Message boards : Number crunching : Astropulse - more info from the Seti gods please (Message 1171655)
Posted 17 Nov 2011 by Profile Frizz
Post:
I was just reading: "As of November 2011, the Einstein@Home project has discovered a total of 14 pulsars. Ten from Parkes Multibeam Survey data and four from Arecibo radio data."

What about Astropulse? It basically does the same pulsar search.

Why are "we" not detecting anything?

I little bit more information from the Seti team would be nice.
14) Message boards : Number crunching : Heater for winter needed? GTX560 Twin (768 Shaders!) (Message 1168315)
Posted 5 Nov 2011 by Profile Frizz
Post:

Estimated price: about 500US$


I thought you have EUROs in Greece? Or not anymore ...? >:}
15) Message boards : Number crunching : Dealing With Clogged Pipes (Message 1167490)
Posted 3 Nov 2011 by Profile Frizz
Post:
Maybe, until the fabled 1Gbps link to the lab is installed, the short term answer is to restrict AP to CPU only crunching.


That would be unwise - since crunching APs on GPU is way more (energy-)efficient. If it was up to me I would restrict AP crunching to GPU only :)

Joe had a good idea some time ago: A combined app, that transfers the Arecibo data only ONCE - and does BOTH, a MB and a AP search. Since the raw data for MB and AP is basically the same this should be possible.

But what we really need for the future is a more in depth search - where a WU takes 10 days instead of 1. AFAIK the Seti guys are already working on that ...
16) Message boards : Number crunching : ATI HD 6670 (Message 1166914)
Posted 1 Nov 2011 by Profile Frizz
Post:
If "earning" points is what you are after then maybe you should start Bitcoin mining. Because with 1.000.000 BOINC points you can by less than with 1 Zimbabwe dollar ;)

In the end it all comes down to personal choice: If you want to help proving that which can not be proven by sheer compute power (Collatz conjecture) then yes, Collatz is the right project for you ;)
17) Message boards : Number crunching : ATI HD 6670 (Message 1166425)
Posted 30 Oct 2011 by Profile Frizz
Post:

Anyway, GPUz shows three different GPU temps., so I am wondering if it is capable of running 3 different WUs concurrently.


No, that has nothing to do with that. To figure out the optimum number of WUs to run in parallel is trial & error.



I'm new to gpu computing, and I am learning that different projects seem to handle this differently. Lunatics/seti seems to handle multiple WUs but also occupies CPU time, Collatz only runs one, but leaves CPUs free to crunch independantly.


Thats partly because all newer AMD Catalyst drivers suck (and use 100% CPU, when it should be <5%). Partly because Lunatics apps can not run entirely on the GPU (yet). For example for Astropulse the blanking stuff needs to be done on the CPU (for now).

As for your original question: It's best to figure out your RAC by yourself. To do so, download the Test Tools from Lunatics download section (knabench/apbench). Then use those tools to do an offline run of a MB and/or AP unit.

For example, if you can finish one AP unit in 2 hours, you can finish 12 per day. On average you get ~750 points for each AP unit. 12 * 750 -> 9000 RAC

I'd be curious what your results will be. Could you please post them here?
18) Message boards : Number crunching : Despair, desperation, desolation. (Message 1166273)
Posted 29 Oct 2011 by Profile Frizz
Post:
New tapes - and the result creation rate is at 0.0405/sec for AP? Something must be screwed up there ...
19) Message boards : Number crunching : Where will all the AP's go? (Message 1164980)
Posted 24 Oct 2011 by Profile Frizz
Post:
I'd be interested if there is some progress on the AP search.

Einstein@home (re-)detects one pulsar after the other - and we? Are there any presentable results yet?

A more transparent and open information policy would be desirable. Methinks.
20) Message boards : Number crunching : Does it make sense to crunch Astropulse? (Message 1164624)
Posted 22 Oct 2011 by Profile Frizz
Post:
I now see a steady increase of "Results returned and awaiting validation" on the Status page.

Did the Seti Gods fix the ap_validate3 problem simply by hard coding the status to "Running" / green? ;)


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