Primegrid Challenge Series

[Chuck]

Ok, so we wish to play with ??? I will warn you in advance not to stand down-wind of me after Ripchen !!!!!!!

FYI, the first part of the app is working. I've got it at 128 bit precision even on an AMD. The only piece I have to decide/determine is where to slice the FPDP to Fixed Point. Once done, if successful on both platforms will give us the speed AND PRECISION we need for all. At that point, I will ask the 'Heavy Guns' to give it a solid test drive to make sure there are no false positives/ fatal round-off errors. We've done it before, but I have to use a new implementation and cannot simply use the one I know. So it's time for a little 'magic' to make it different enough to be GPL-able.

How long have we been waiting for such an app anyway?

[LAURENU2]

How long have we been waiting for such an app anyway?

I do not know but that is a good Question I will pass that one on to the people that would Know

[Chuck]

Lauren,
If you wish to ask, please do... I've got the core routines in Integer / Fixed point form now... only question is WHERE to slice it for safe Fixed Point representation to a normally Floating Point / Complex FFT problem.

Please have anyone / them / you email me directly. ALL input welcome, especially from the 'masters'.

Do you agree that having reliable 128 bit math base in integer / fixed point is of benefit even without the use of SSE / SIMD ?

[Chuck]

Have 9 up and running..... avg complete cpu time 41 hrs estimated. Will update when first WU reports

[Bigred]

Six of us on the board with Bok in the lead at #113.

Team is at #23.

[mattozan]

I flushed some completed WUs and jumped up to #92. But now it will be at least a couple more days before I produce anythings else... A big factor in this challenge will be how many WUs you can finish on the last day...

[uBronan]

Well yes thats what i was reading but even though i got enough units finished i only saw myself drop on the ranks even though i was in front of you at the begin.
Since that day it went from 193 downwards to 260+ non of the newly finished units has been added to the challenge while the boinc points keep coming in.
Yesterday for instance i got another 3 units rewarded but nothing added again on the challenge.
Ofcourse i know not to be a fast cruncher but when units got finished you expect to see change
Within 3 hours another freaking long unit will end after about 70 hours on the q6600.

[mattozan]

I've got three WUs that should finish in a couple more hours, and eight more that should finish in a couple more days. Then that'll be it for me. All the rest won't meet the contest deadline.

Here in California our first storm of the season is moving in, bringing the first rain we've seen since June. As the temperature drops I might bring my GPU rig back out of the closet. I definitely will do for the Winter Solstice PPS Sieve Challenge, at the very least.

[Bok]

I've got 10 more wu's that will finish within the challenge time, to date all the points I have so far are from the single core i7 2600@4Ghz.. not bad at all

[Bigred]

I've got 10 more wu's that will finish within the challenge time, to date all the points I have so far are from the single core i7 2600@4Ghz.. not bad at all

Makes my eight quads look a little dated.

[mattozan]

I've got 10 more wu's that will finish within the challenge time, to date all the points I have so far are from the single core i7 2600@4Ghz.. not bad at all

I've just got one more in me. Timing wasn't on my side in this one.

[Bigred]

Ok, so we wish to play with ??? I will warn you in advance not to stand down-wind of me after Ripchen !!!!!!!

It is not the Ripchen that makes you do that. It is the sauerkraut that is traditionaly served with it.

[Chuck]

Oh, I agree totally, but if you take Rippchen and soak it properly in the saurkraut as is done very often, the two are a 'potent' combination. We also agree on that ?

[Bigred]

The next challenge starts on 26 August. It is for PPS LLR which means it is CPU only. Anybody going to help?

[LAURENU2]

I guess I can help
Go Team Go

[Bok]

I think I'm home that week so I'll do some..

[mattozan]

Yep, I'll pile on it.

[Chuck]

gang,
ordered 2920qm w/ 8G (quad channel mem ddr3) + gt 580 + hd3000 dual gpus .. i7 @3.4G -> 3.9G Turbo... sony L series.

amd chips good for cpu sieve (22 hr for pps). c2d v2 2.4ghz in 24 hrs, c2d did llr in 48hr woodall. L has 2tib hd + 24" 1920x1080p + xfer of 2x500GB hd from old laptop. gpu will help nice w/sieve + help team

cuda compliant w/ 1G ram + tuner /capture + tons of new stuff.

linux faster than w7 pro 64 .. ready to setup & xfer s/w when it gets here tomorrow

am sick w/ bad flu.

for laughs look in os discussion and see graphic/cartoon i posted about how we probably feel about our machines sometimes.

graphic name is BB-3.jpg

talk to you all in a few days

C

[uBronan]

lol my old x3 720 (3.2 Ghz) 40+ hours on a unit and beats my quad 6600 (3.2 Ghz)with ease with 55+ hours
Funny is that most units start with a estimate of 70+ hours on the amd but end much faster
While the q6600 estimates at start 50+ hours and ends more near the 60 hours

[LAURENU2]

The next challenge starts on 26 August. It is for PPS LLR which means it is CPU only. Anybody going to help?

Does anybody know the start time for Chicago?

[Chuck]

EDT is GMT/UTC - 4 (summer time), EST is GMT/UTC - 5 (winter time)
CDT is GMT/UTC - 5 (summer time), CST is GMT/UTC - 6 (winter time)

All other adjust accordingly. Example... .In Summer, GMT 'midnight' occurs at Chicago 7:00pm.

That help everyone?


C.

[Bigred]

EDT is GMT/UTC - 4 (summer time), EST is GMT/UTC - 5 (winter time)
CDT is GMT/UTC - 5 (summer time), CST is GMT/UTC - 6 (winter time)

All other adjust accordingly. Example... .In Summer, GMT 'midnight' occurs at Chicago 7:00pm.

That help everyone?


C.

Chuck that is way too complicated for Lauren. It would actualy require him to do some math.

Keep it simple. Chicago is on CDT and the challenge starts at 1800 UTC. That would be 1800 minus 5 hours which would make it 1300 CDT. Just to make it really simple, Lauren start them right after lunch.

[uBronan]

You guys have too much machines, and too powerfull ones
Poor little me can't keep up, and suddenly not getting new woodall units on one machine.
I have to look into it why it does not get me some, setting it to 10 days work cache did not solve it.
And i allready killed the boinc debts as well, but the most weird is that it only happens on primegrid all other projects just do function normal

[LAURENU2]

The next challenge starts on 26 August. It is for PPS LLR which means it is CPU only. Anybody going to help?

I forgot to ask how long does this challenge run?

[Bok]

2 days. Hopefully I'll not lose power with the impending hurricane...

[Chuck]

Same here. We could also lose it, but some time after you do. I will keep eyes open on your location and decide whether to 'run for da hills' or not based on what you get. Most likely, we will just lose a few telephone poles (power, dsl, cable, etc...... you know, nothing major.... LOL).

Hope you fair well through the storm. I have family out on the Cape and more right in V.B. We're all hoping for a more 'easterly route'

Take care of yourself & fam.





C.

[Bigred]

I forgot to ask how long does this challenge run?

Hey Lauren. Lunchtime is over.

[LAURENU2]

Hey Lauren. Lunchtime is over.

I came home and turned them on about 2:00 pm
Then I went back to work. Later when I came back I saw the nodes had no work
Found out I was working a Old project
updated my account and all my nodes, all is working now

You know me I am stupid on details and I am a slow starter but I get up to speed fast

[Chuck]

Gang,
Lost LLR machine.... new LLR machine here in 2 days.... hope a Core i7 @ 3.4 will do the job & help catch back up. Sorry for failure, as accident.
Currently running using backup machine (much slower)

[uBronan]

lol such weirdness suddenly got for 10 more days work, i forgot to set it back to 2 days work
Has any of you a clue why i do not see points awarded for the challenge while i finished some more units.
My rank keeps dropping for several days, even though minimal 4 or 5 units got finsihed and validated
On the boinc credits all seem fine and added normally

[Bok]

I thought it would be the other way around. They often switch off the validator whilst running the challenges, so you get points for the challenge, but the BOINC points come later..