Posts by Crunch3r
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1) Message boards : News : SSL Certificate Replaced (Message 23235)
Posted 442 days ago by Profile Crunch3r
Client has yet to add Collatz project, hence no project data folder.

Event log shows:

07/11/2016 19:32:03 | | Fetching configuration file from https://boinc.thesonntags.com/collatz/get_project_config.php
07/11/2016 19:32:19 | | Project communication failed: attempting access to reference site
07/11/2016 19:32:21 | | Internet access OK - project servers may be temporarily down.

However, get_project_config.php is available (xml file).

Any idea's?

Thanks


The only way to attach atm is using http://boinc.thesonntags.com/collatz/ something's broken with the ssl url...
2) Message boards : News : SSL Certificate Replaced (Message 23160)
Posted 451 days ago by Profile Crunch3r
I'd recommend https://letsencrypt.org/ it's free and cert renewal can be automated.

I'm using it myself and all browsers accept it.
3) Message boards : Number crunching : Optimizing Collatz Sieve (Message 23092)
Posted 466 days ago by Profile Crunch3r
verbose=1
kernels_per_reduction=48
sleep=1
threads=8
lut_size=17
reduce_CPU=0
sieve_size=30
cache_sieve=1


that's the one i use. my gtx 1080 does a wu in ~45 sec.
4) Message boards : Number crunching : Many errors on GTX 1060 6GB driver 372.90 (Message 23016)
Posted 485 days ago by Profile Crunch3r
Many errors on GTX 1060 6GB driver 372.90.
https://boinc.thesonntags.com/collatz/results.php?userid=38628



Did you install the latest Visual Stidio 2012 RT libs ?
https://www.microsoft.com/en-us/download/details.aspx?id=30679
5) Message boards : Number crunching : WTF ?!? (Message 22578)
Posted 586 days ago by Profile Crunch3r
Detaching from a project removes the entire project folder and since Collatz offers more nuance optimization options the consequences of detaching/reattaching should have been better communicated. We live and learn. Hopefully you can quickly find some optimizations in optimizing collatz sieve thread : http://boinc.thesonntags.com/collatz/forum_thread.php?id=1273

I had previously posted my config to that thread, so I simply copied it back to the project folder.



Thanks for your reply, but that's besides the point.(Sorry)
The real question is why BAM blocked any new work request and why i had to resort to detaching from BAM at all to get new work.

I wonder if this is related to that SSL URL crap that's been going on before.
6) Message boards : Number crunching : WTF ?!? (Message 22576)
Posted 586 days ago by Profile Crunch3r
Getting home after a few days, i've notice that all of my machines got no WUs at all and manually requesting work didn't get me anywhere... So i started digging for clues and enabled work_fetch_debug and figured out that BOINCstats BAM was causing it. I don't know why but workfetch got blocked by bam....

Anyway, so there's this new thing regarding the bad url (SSL shit an so on)and i thought that detaching from BAM would solve the problem and it did. Clients are getting work now.

GREAT i thought...However somehow that deleted my config files and i'm now more than pissed that i have to tune every GPU in very client once again.

SO... WHAT HAPPENED HERE ???
7) Message boards : Number crunching : nVidia Pascal X80 (Message 22125)
Posted 673 days ago by Profile Crunch3r
How Accurate Are These Specs?

Now that we’ve gotten the specs out of the way there are a few red flags that I should direct your attention towards. The first being that the source of these specs is claiming that the GTX 1080 Ti will feature 8GB of GDDR5 and a 512bit memory interface. All the while the Pascal based Titan, which is based on the very same GP100 GPU, will feature an entirely different memory interface and an entirely different memory standard.

Any person with basic knowledge of chip design will tell you that this will NOT happen. Each GPU will only feature one memory standard, either GDDR5/X or HBM/2, not both. You will not see a GPU with two completely different memory interfaces supporting two completely different memory technologies. It will only support one or the other.

The “Alleged” Memory Specs For The GTX 1080 Don’t Make A Whole Lot Of Sense Either

There’s another red flag here and that this source is claiming that Nvidia will be using GDDR5, rather than GDDR5X for its GP104 powered GTX 1080. Not only that but that it’s also allegedly configured with a 384bit memory interface and 6GB of memory.

For starts it’s unlikely that we’ll see Nvidia use GDDR5 rather than GDDR5X – which offers double the bandwidth – in its high end graphics cards. Secondly, benchlife, a source which we hold in a much higher regard for its impeccable accuracy over the years claims that the GTX 1080 will be configured with 8GB of memory rather than six. Which, credibility aside, is a much more believable figure to begin with.

Considering that GDDR5X will not only offer twice the bandwidth of GDDR5 but also twice the capacity. Eight gigabytes of GDDR5X would require a 256bit memory interface and would deliver 448 GB/s of memory bandwidth. That amount of bandwidth is enough to keep a GPU with 33% more performance than the GTX TItan X happily fed. Even if benchlife had never leaked these memory specs, 8GB of memory is 100% what we would’ve bet on. It simply makes perfect sense for this type of chip and its time to market.


Both of these redflags will prompt us to label the “confidential” table above as very questionable at best.

8) Message boards : Number crunching : WUs completing too quickly & getting too few WUs (Message 21697)
Posted 805 days ago by Profile Crunch3r
Where do they sell those at?


It's Mikey.. so my guess would be "la la land".
9) Message boards : News : Collatz Sieve v1.21 Released for Linux and OS X (Message 21232)
Posted 870 days ago by Profile Crunch3r
Not validating.

intel: http://boinc.thesonntags.com/collatz/result.php?resultid=21808924

nvidia: http://boinc.thesonntags.com/collatz/result.php?resultid=21811346



Of course not... those are 1.20... not the new 1.21 ;)

Collatz Conjecture Sieve 1.20 OS X
10) Message boards : Number crunching : Optimizing Collatz Sieve (Message 21013)
Posted 893 days ago by Profile Crunch3r
fwiw,

1.07 is a major blow performace wise (40% performace drop compared to 1.04)
.
Before the release i was able to circumvent that degrading performance of 1.05 by using the 1.04 ocl app (nvidia) instead.

However it seems that the old (and way faster 1.04) app can't handle new WUs, at least for me they all error out.

It seems to be impossible to get 1.07 upto the performace of 1.04... i've tried the old config parameters and it's not even close.

The new sieve_size parameter doesn't help either.

Besides all that, is there a specific reason why NVIDIA gpus seem to be performing way better using the sieve app compared to AMD ?
11) Message boards : News : Switching To CreditNew (Message 19108)
Posted 1372 days ago by Profile Crunch3r
For a while I thought it was really April Fool message. The recent credits have indeed taken a plunge.

Right now GPUGRID is providing good credit.


Credits are down because RAC is based on 'recent average credit' and since recently the project was down and NO credits were given for that day or two.



That makes no sence at all...


Credits are down because RAC is based on 'recent average credit'


So RAC (which is Recent Average Credit) ... is based on itself... ok......that blows my mind !!!



Anyway... credits are lower than they used to be. I don't know why, maybe Jon can come up with an answer that actually makes sense.
12) Message boards : Unix/Linux : Collatz on GPUs with Linux (Message 19066)
Posted 1379 days ago by Profile Crunch3r
It's quite obvious what's going wrong here. You don't have the proper graphics drivers installed on your machines and that's why boinc can't detect any usable machinesb (hence no work for your GPUs).

Download and install the drivers from AMD/Nvidia.

That'll fix the problem.
13) Message boards : News : Variable Sized Wokunits & New CPU Applications (Message 18985)
Posted 1392 days ago by Profile Crunch3r


I'm thinking 4 choices:
1. tiny = 6,442,450,944 numbers
2. mini = 16 times larger than tiny or 103,079,215,104
3. standard = 128 times larger than tiny or 824,633,720,832 numbers
4. automatic = same as today where CPUs get tiny to below mini and GPUs get mini to standard. This would be the default so people are not forced to create settings



I'd go a bit further ...

1. tiny = 6,442,450,944 numbers
2. mini = 16 times larger than tiny or 103,079,215,104
3. standard = 128 times larger than tiny or 824,633,720,832 numbers
4. large = 256 times larger
5 xl = 512 times larger
6. automatic
14) Message boards : News : Variable Sized Wokunits & New CPU Applications (Message 18931)
Posted 1396 days ago by Profile Crunch3r
It would be nice if we could pick a size. My Android has been running the 3 smallest units randomly. It would be nice if I could set it to run one size consistently so I could better monitor the unit.


I'm in favour of that too. It's kind of annoying to run WUs that only take a few sec. on a GPU... despite getting lager ones on a phone, which makes no sense at all.
15) Message boards : Number crunching : Optimizing Collatz v6.xx OpenCL and CUDA Applications (Message 18867)
Posted 1408 days ago by Profile Crunch3r

Please show me where did I go wrong?
All I want is stability and maximum output. Like it was in November/December 2013.
Sorry for my bad English
Thanks!


You're not doing anything wrong. It's simply that collatz ATM grants lower credtis than it did before the "nuclear meltdown". In other words, you're not the only one "suffering" / "bleeding credits".

Anyway, it seems though, that the situation is very slowly improving and were getting back to credit levels we were used to. I'm guessing it'll take another 4 weeks to be back where we left before the whole mess went down.
16) Message boards : Number crunching : Optimizing Collatz v6.xx OpenCL and CUDA Applications (Message 18842)
Posted 1413 days ago by Profile Crunch3r

Where are these files located on a Ubuntu 12.04 system?


open a terminal and type:

sudo find / -name "boinc.thesonntags.com_collatz"


that'll show you where the project diretory is located... (basic linux knowledge)

anyway...

use an editor that you're familiar with.
17) Message boards : Number crunching : Optimizing Collatz v6.xx OpenCL and CUDA Applications (Message 17594)
Posted 1574 days ago by Profile Crunch3r
Did anyone figure out which settings are best for a 5870 and a 6950 ?

TIA
18) Message boards : Cafe : Team Recruitment thread (Message 17593)
Posted 1574 days ago by Profile Crunch3r

BOINC UNITED - an International Team participating in BOINC volunteer computing projects.

If you are supporting science then BOINC UNITED is for you!


BOINC UNITED is a unique, international TEAM open to all that are interested.

Be part of something special!

Combining our knowledge, having inspirational talks with our Members and helping out the scientific community by participating in various BOINC Projects.

Please make sure to visit us at our BOINC UNITED Homepage and our BOINC UNITED Forum!

Make sure to join us here at the project to be part of something special.

We can help cure diseases, study global warming, discover pulsars, map the milkyway galaxy and do many other types of very important scientific research that helps making the world a better place for all of us.

Together we can make a difference!



Visit us at:
19) Message boards : Windows : I have 32-bit fp GPU, is it good for collatz? (Message 13827)
Posted 2103 days ago by Profile Crunch3r


Saul I was NOT yelling at you...


Writing in Caps is considered like Shouting/Yelling almost anywhere ;)

http://email.about.com/od/netiquettetips/qt/Writing-In-All-Caps-Is-Like-Shouting.htm

So i do understand Saul's point.
20) Message boards : Windows : I have 32-bit fp GPU, is it good for collatz? (Message 13826)
Posted 2103 days ago by Profile Crunch3r
A yes or no would do.


It doesn't matter since collatz uses integers...

Besides all that there are no such thing as 32 bit or 64 bit WU(there are 64 and 32 bit APPs though... that's a difference. Although that only matters if your crunching on CPU). All WUs are the same regardless of GPU or CPU type. The only difference is the length (mini collatz or regular collatz WU)

Hope that helps.


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