Formula-BOINC Sprint #14 14th-17th Sept 2017

News and Announcements about BOINC, the Team and its Members (including Members birthdays, etc). This section can be used to note progress made (or hoped for) on specific projects. Team Crunchathons are announced here too.
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Formula-BOINC Sprint #14 14th-17th Sept 2017

Postby UBT - Timbo » Sun Aug 27, 2017 11:49 pm

Hi all

The next Sprint is from 14th-17th September, with the announcement of which is the chosen project, taking place on 13th Sept at 16:00 (UTC) which is 5pm BST.

This is the list of projects it could be:
BURP
Citizen Science Grid
Cosmology@home
DENIS@Home
Enigma@home
FiND@Home
GPUGrid (GPU)
Leiden Classical
PRIMABOINCA
PrimeGrid (GPU)
SRBase
The dDM-Project
TN-Grid
Universe@Home
VGTU@home
Wanless Mersenne +2
Yafu < chosen project

So, please put this in your diary so you know which project to crunch, if you want to participate ;-)

regards
Tim

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Re: Formula-BOINC Sprint #14 14th-17th Sept 2017

Postby UBT - Timbo » Wed Sep 13, 2017 12:08 pm

Hi all

Reminder:

The next FB Sprint project will be announced in just under 5 hours time (at 5pm BST).

Hopefully it will be one where we can compete against other teams and earn ourselves a few more points :-)

regards
Tim

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Re: Formula-BOINC Sprint #14 14th-17th Sept 2017

Postby Woodles » Wed Sep 13, 2017 3:54 pm

Hi Tim,

Ready and waiting and hoping for a project I already crunch :)

Mark

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Re: Formula-BOINC Sprint #14 14th-17th Sept 2017

Postby Woodles » Wed Sep 13, 2017 5:02 pm

"Sprint on project Yafu
from 09/14/2017 16:00 (UTC) to 09/17/2017 15:59 (UTC)"

Not as much swapping over as there could be :D

The drawback is that each host is limited to only two tasks so there's not going to be much of a surge when the sprint officially starts :(

Mark
Last edited by Woodles on Wed Sep 13, 2017 5:10 pm, edited 1 time in total.

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Re: Formula-BOINC Sprint #14 14th-17th Sept 2017

Postby UBT - Chris Suddick » Wed Sep 13, 2017 5:09 pm

OK, so how does one connect to Yafu? I've created an account and upgraded to the latest BOINC manager but there is no Yafu listed.

Chris.

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Re: Formula-BOINC Sprint #14 14th-17th Sept 2017

Postby Woodles » Wed Sep 13, 2017 5:14 pm

Hi Chris,

Manually enter "http://yafu.myfirewall.org/yafu/" into the Project URL box

Mark

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Re: Formula-BOINC Sprint #14 14th-17th Sept 2017

Postby UBT - Chris Suddick » Wed Sep 13, 2017 5:21 pm

Thanks, Mark. All going now.

Chris.

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Re: Formula-BOINC Sprint #14 14th-17th Sept 2017

Postby UBT - Chris Suddick » Wed Sep 13, 2017 5:23 pm

The first 2 tasks I got completed in 2 & 3 seconds scoring a massive 0.17 points! Fortunately the next two are scheduled to take about 10 hours between them.

Chris.

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Re: Formula-BOINC Sprint #14 14th-17th Sept 2017

Postby UBT - Timbo » Wed Sep 13, 2017 5:31 pm

Woodles wrote:"Sprint on project Yafu
from 09/14/2017 16:00 (UTC) to 09/17/2017 15:59 (UTC)"

Not as much swapping over as there could be :D

The drawback is that each host is limited to only two tasks so there's not going to be much of a surge when the sprint officially starts :(

Mark


Hi Mark

Not going to be many "pre-Sprint" tasks being completed before the official start - which is fair in one sense as every team starts at the same time.

But doesn't help those teams who plan ahead and improve their chances by having some extra tasks completed and ready to upload once the Sprint officially starts ;-)

Also: The YAFU tasks can utilise as many free CPU's as you have available for EACH task....I've just got one WU and it's now using all 6 currently available CPU's.

regards
Tim

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Re: Formula-BOINC Sprint #14 14th-17th Sept 2017

Postby Woodles » Wed Sep 13, 2017 5:32 pm

Hi Chris,

You can use the preferences on the website to determine which tasks you get.

For your processor, you get more points per day running the '4t' tasks ... and I've had them take anything from 2 to 80,000 seconds on a 4GHz i7!

Mark

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Re: Formula-BOINC Sprint #14 14th-17th Sept 2017

Postby Woodles » Wed Sep 13, 2017 5:37 pm

UBT - Timbo wrote:Not going to be many "pre-Sprint" tasks being completed before the official start - which is fair in one sense as every team starts at the same time.

But doesn't help those teams who plan ahead and improve their chances by having some extra tasks completed and ready to upload once the Sprint officially starts ;-)

Hi Tim,

Fortunately in our case it's not that big a problem as we need the points for the marathon anyway :D

UBT - Timbo wrote:Also: The YAFU tasks can utilise as many free CPU's as you have available for EACH task....I've just got one WU and it's now using all 6 currently available CPU's.

There are four(?) different types of Yafu tasks and the 'un-restricted' multithread ones are the worst for credits (http://www.ukboincteam.org.uk/newforum/viewtopic.php?f=1&t=5982&p=114354&hilit=yafu#p114354)

The dedicated 4t (four thread) ones return about the same as a six thread mt one and leave you two cores free for something else :)

Mark

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Re: Formula-BOINC Sprint #14 14th-17th Sept 2017

Postby UBT - Mikee » Wed Sep 13, 2017 7:23 pm

Hi

Well that's a surprise! I've currently got 2 that have been running for 20 hours, no idea when they'll finish - could be another 10 mins or 10 hours - they're going to be worth several thousand when done. As I can't get any more, I'll suspend them until tomorrow.

Mike
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Re: Formula-BOINC Sprint #14 14th-17th Sept 2017

Postby UBT - Timbo » Thu Sep 14, 2017 5:56 pm

Hi Mark

Did you accidentally upload about 176,000 worth of YAFU credits a bit early, this afternoon...?

Or were you thinking of goading a few other teams ? hehehehehe

regards
Tim

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Re: Formula-BOINC Sprint #14 14th-17th Sept 2017

Postby Woodles » Thu Sep 14, 2017 6:21 pm

Hi Tim,

It appears that I did :oops: (It was just one WU :D)

As I couldn't find a way of building up a cache, I just left everything running and the time was just wrong, a few hours later would have been better.

Still, we're straight into fourth place with your better timed 10 credits :lol:

Mark

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Re: Formula-BOINC Sprint #14 14th-17th Sept 2017

Postby UBT - Timbo » Thu Sep 14, 2017 11:30 pm

Hi Mark

No probs ;-)

...and I got 7 more the following hour too :-)

Mind you, I also uploaded (before the sprint started) 531-credits worth...but that was because I wasn't sure if my old 32-bit Win XP Pro machine was capable, as some projects now only allows Win 7 (or later) or even only 64 bit tasks...

Anyways, I'm sure we'll do OK this time around :-)

regards
Tim

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Re: Formula-BOINC Sprint #14 14th-17th Sept 2017

Postby UBT - Timbo » Fri Sep 15, 2017 12:32 am

Hi all,

More interesting stuff on Yafu:

1) The Yafu admin, yoyo, doesn't think there'll be enough "yafu" and "yafu small" tasks available for the Sprint, so if you are involved with the Sprint, make sure you allow the 4t, 8t and even 16t tasks in the yafu preferences section (on the website).

https://yafu.myfirewall.org/yafu/forum_thread.php?id=272#1053

2) By configuring the cc_config.xml file (if running ONLY Yafu, it seems), you can get more threads running (compared to the default) by increasing the following parameter:

Code: Select all

<ncpus>128</ncpus>


This was the example for an 80-core Xeon which was set to run 2 tasks with 64 threads in each

https://yafu.myfirewall.org/yafu/forum_thread.php?id=265#1034

So, for my 32-core Xeon, I've set <ncpus> to 48 and I now have 100% CPU utilisation, whereas before, it was lower. I'll see what effect (positive or otherwise) this has had in the morning :-)

But thus far, CPU temps have not gone up significantly.

This might be useful info for some ;-)

regards
Tim

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Re: Formula-BOINC Sprint #14 14th-17th Sept 2017

Postby Woodles » Fri Sep 15, 2017 8:45 am

UBT - Timbo wrote:...and I got 7 more the following hour too :-)

Hi Tim,

Congratulations, so you were personally responsible for our top five placing for the first two hours! :D

UBT - Timbo wrote:Mind you, I also uploaded (before the sprint started) 531-credits worth...but that was because I wasn't sure if my old 32-bit Win XP Pro machine was capable, as some projects now only allows Win 7 (or later) or even only 64 bit tasks...

Good to hear that even older machines can still be useful.

UBT - Timbo wrote:Anyways, I'm sure we'll do OK this time around :-)

Doing alright at the moment, fourth place for twelve points, USA on one point and 3DNow! yet to join in.

At least with a maximum of two tasks per host and no building up a cache there's unlikely to be a surprise waiting on the last day as team X uploads three days worth of work in an hour and shoots past us.

Mark

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Re: Formula-BOINC Sprint #14 14th-17th Sept 2017

Postby Woodles » Fri Sep 15, 2017 8:52 am

UBT - Timbo wrote:1) The Yafu admin, yoyo, doesn't think there'll be enough "yafu" and "yafu small" tasks available for the Sprint, so if you are involved with the Sprint, make sure you allow the 4t, 8t and even 16t tasks in the yafu preferences section (on the website).

Hi All,

The "yafu small" tasks are designed for Android 'phones and tablets and are very easy, finish quickly but score poorly. The Yafu tasks are multithreaded but don't scale very well and a 4 core Yafu is very much inferior to a 4t task. If possible, run the 16t tasks (see Tims earlier post for running these on less than 16 core CPUs), they score a lot more points per second than the other tasks. A note though, despite being specifically labelled as 16t, they'll take as many cores as you have available upto 64 per task. They can be controlled by an app_config file if needed but they score better with a lot of cores.

UBT - Timbo wrote:2) By configuring the cc_config.xml file (if running ONLY Yafu, it seems), you can get more threads running (compared to the default) by increasing the following parameter:

Code: Select all

<ncpus>128</ncpus>


This was the example for an 80-core Xeon which was set to run 2 tasks with 64 threads in each

https://yafu.myfirewall.org/yafu/forum_thread.php?id=265#1034

So, for my 32-core Xeon, I've set <ncpus> to 48 and I now have 100% CPU utilisation, whereas before, it was lower. I'll see what effect (positive or otherwise) this has had in the morning :-)

But thus far, CPU temps have not gone up significantly.

This might be useful info for some ;-)

I'll be interested to see how this worked out, the 16t tasks score significantly better than the 8t tasks and I have a few i7s that may suddenly find another eight cores if this turned out well :D

Additionally, the Linux tasks generally score much better than the equivalent Windows tasks on the same machine for those of you with dual boot systems.

Mark

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Re: Formula-BOINC Sprint #14 14th-17th Sept 2017

Postby UBT - Chris Suddick » Fri Sep 15, 2017 9:24 am

I'm beginning to wonder if this thing will ever finish. When the current task started it was scheduled for about 6 hours. It is currently on about 30 hours with 5m55s remaining (down 12s on an hour ago). It had better be worth it when it finally does finish.

I've seen paint dry faster. Yawn.

Chris.

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Re: Formula-BOINC Sprint #14 14th-17th Sept 2017

Postby Woodles » Fri Sep 15, 2017 9:36 am

The time remaining is very inaccurate Chris, out of thirty six 4t tasks, I've had six take over 30 hours (one took 49 hours!)

So long as it's using CPU then stick with it, there should be a few thousand credits coming your way :)

Mark


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