BOINC effort for CRUS - Page 7

VBCurtis · 2015-04-05, 20:01

Rebirther-
If I sieve R28 from 500k up, how high are you/BOINC willing to test? I'm thinking 750 or 800k would be enough chance to find a prime to make a sieve worthwhile for me to build, with the leftover sieve posted for someone to take on afterward.

The R37 sieve 250-500k is at 19T now, stopping at 28T in about 2 weeks.

rebirther · 2015-04-05, 20:35

Quote:

Originally Posted by VBCurtis

Rebirther-
If I sieve R28 from 500k up, how high are you/BOINC willing to test? I'm thinking 750 or 800k would be enough chance to find a prime to make a sieve worthwhile for me to build, with the leftover sieve posted for someone to take on afterward.

The R37 sieve 250-500k is at 19T now, stopping at 28T in about 2 weeks.

I always need the runtimes on a based CPU to know where I can put it in. Small runtimes up to 30min are good.

VBCurtis · 2015-04-06, 03:01

Quote:

Originally Posted by rebirther

I always need the runtimes on a based CPU to know where I can put it in. Small runtimes up to 30min are good.

For base 37, 30 minutes is around 400k on my haswell-i7; so 500k will be a bit longer than 40 min (extrapolating from my tests with 100k to 200k candidates on the previous base-37 sieve).

MyDogBuster can tell us exactly what time base 28 @500k took, but it should scale with the square of the base (?) and thus be about 60% the time of base 37. If my estimates are correct, that's around 25 min for 500k, 50 min for 700k on a haswell. If you aim for 30 min or less, you won't test enough of base 28 for me to build a sieve for you.
Ian, can you confirm testing time?

VBCurtis · 2015-04-14, 21:13

Attached is the R37 sieve from 250k to 500k, sieved to 27T.

MyDogBuster · 2015-04-15, 18:46

Quote:

MyDogBuster can tell us exactly what time base 28 @500k took, but it should scale with the square of the base (?) and thus be about 60% the time of base 37. If my estimates are correct, that's around 25 min for 500k, 50 min for 700k on a haswell. If you aim for 30 min or less, you won't test enough of base 28 for me to build a sieve for you.
Ian, can you confirm testing time?

About 29 minutes on a Haswell.

paleseptember · 2015-05-07, 12:04

Just popping to say that I saw the SRBase project on the BAM! list of projects, thought it looked interesting. And then thought it looked really quite familiar, saw Gary's name, and realised that the project was actually part of CRUS! Very exciting!

I never was much good with running manual projects (I want to tinker too much :P) so I'm pleased to be able to contribute via the BOINC client. Admittedly, I'm running seven year-old desktop hardware (recently updated from decade-old desktop hardware!), so my contributions might be a little underwhelming. I'm hoping to upgrade to something from this decade at some point.

(I may have lost, oh, about an hour this evening catching up, or trying to catch up, on the status of the project!)

paleseptember · 2015-06-17, 06:21

SRBase BOINC appears down....

http://isup.me/srbase.myfirewall.org/ is showing down, forums time out, can't return results.

Not sure how to contact Rebirther outside of this forum....

rebirther · 2015-06-17, 06:36

Quote:

Originally Posted by paleseptember

SRBase BOINC appears down....

http://isup.me/srbase.myfirewall.org/ is showing down, forums time out, can't return results.

Not sure how to contact Rebirther outside of this forum....

My cable provider is down, sorry. I have stopped the server. I dont know when its fixed.

paleseptember · 2015-06-17, 09:54

Quote:

Originally Posted by rebirther

My cable provider is down, sorry. I have stopped the server. I dont know when its fixed.

No problems, thanks for the update! My secondary project is PrimeGrid. When SRBase is back up, I'll swap back.

rebirther · 2015-06-17, 14:25

Quote:

Originally Posted by paleseptember

No problems, thanks for the update! My secondary project is PrimeGrid. When SRBase is back up, I'll swap back.

The server is back online.

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2015-04-05, 20:01	#67
VBCurtis "Curtis" Feb 2005 Riverside, CA 2×3×19×41 Posts	Rebirther- If I sieve R28 from 500k up, how high are you/BOINC willing to test? I'm thinking 750 or 800k would be enough chance to find a prime to make a sieve worthwhile for me to build, with the leftover sieve posted for someone to take on afterward. The R37 sieve 250-500k is at 19T now, stopping at 28T in about 2 weeks.

2015-05-07, 12:04	#72
paleseptember Jun 2008 Wollongong, .au 3·61 Posts	Just popping to say that I saw the SRBase project on the BAM! list of projects, thought it looked interesting. And then thought it looked really quite familiar, saw Gary's name, and realised that the project was actually part of CRUS! Very exciting! I never was much good with running manual projects (I want to tinker too much :P) so I'm pleased to be able to contribute via the BOINC client. Admittedly, I'm running seven year-old desktop hardware (recently updated from decade-old desktop hardware!), so my contributions might be a little underwhelming. I'm hoping to upgrade to something from this decade at some point. (I may have lost, oh, about an hour this evening catching up, or trying to catch up, on the status of the project!)

2015-06-17, 06:21	#73
paleseptember Jun 2008 Wollongong, .au 3×61 Posts	SRBase BOINC appears down.... http://isup.me/srbase.myfirewall.org/ is showing down, forums time out, can't return results. Not sure how to contact Rebirther outside of this forum....