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Mike.Gibson
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England
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Re: Work unit availibility.

Have some smaller units as well and your cache will fill up. There are plenty of units available - just not on demand. With 50/50 you will fill up your arp cache within a day. It is reporting the other units that brings you the other arp units.

Mike
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Jim1348
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Re: Work unit availibility.

There are plenty of units available - just not on demand. With 50/50 you will fill up your arp cache within a day. It is reporting the other units that brings you the other arp units.

Insofar as I know, there is no "Server status page" on WCG showing how many they have ready to send. I have been having some problems the last day or so also; only one of three machines is up to quota.

I usually don't try to get work units on projects that are short, preferring to use my resources where most needed.
Do you know how I can check how many they have available?
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Former Member
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Re: Work unit availibility.

It was recently stated by uplinger that the circulation was upped to 6000, which I interpret as grid blocks. Quorum 2, that's 12,000. Since the participation rate is, ahem, the daily validation averages just over half of that. https://www.worldcommunitygrid.org/stat/viewP...&numRecordsPerPage=30

When the new number came out, I decreased cache from 4 to 3 and it gets quite quickly refilled when a result is reported (20 minutes upload from here plus 2 minutes forced back off). Today, I'm reducing from 3 to 2. Not that it makes any difference to the returned/validated, just that this cuts the time my machine is returning a result from 72 hours or so to 48 or less, given they take about 22 hours to crunch, 1 at the time. So from now 1 will be waiting on the other to do the computing about 1 day minus about 20 minutes before starting.

PS He was contemplating to increase it further, but for now is sticking to the randomized distribution i.e. no hard timing. 6 threads on OPN1 ensures the server is quizzed about 60 times a day and that seems to be enough to hit on a arp1 filled slot. Best I can do to get 1 thread do rainfall prediction 24/7.
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[Edit 1 times, last edit by Former Member at Jun 29, 2020 7:14:57 AM]
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KerSamson
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Switzerland
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Re: Work unit availibility.

Hi Lavaflow,
20 minutes upload

Until 3 weeks ago, it was the same upload duration for me because of ADSL and I looked not to have several machines concurrently reporting completed ARP1 WUs.
In the mean time, I was lucky enough to receive a Fibre Optic connection (after waiting many years) and the reporting now takes less than 20 sec.
I hope for you that you will experience a similar improvement, especially because of ARP1.
Cheers,
Yves
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Mike.Gibson
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Re: Work unit availibility.

Yves, you are lucky with the fibre optics. My road is due to get fibre optics later this year. The nearest point at the moment is 500 m away.

Just to confirm what has been said before, there are now plenty of arp units. It is just that they are not available at all times. They are released randomly, which is why you need to run short duration projects alongside arp in order to update often enough to get those units when they are released. That also helps to keep the crunching time for arp units down to a minimum.

The optimal settings for arp would normally be to use app_config to restrict your arp crunching to half your available cores/threads and your arp cache to twice that. That way your machine would also be classified as 'reliable' and get re-sends which would only have 3.5 days to be crunched.

You can use the other half of your threads to crunch opn and/or mcm which are much shorter and readily available. There are also capacity issues with mip and availability issues with hstb.

Mike
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KerSamson
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Re: Work unit availibility.

Hi Mike,
I had ADSL since Spring 2003 (I was one of the first in the village). FO was promised "until end of next year" since at least 2014.
Last April, during the lockdown, I experienced a 10 days ADSL outage which was really annoying for university lecture (my daughter) and for home office (me).
Finally, I had the good surprise to receive a call end of May asking for an FO installation appointment. It seems that I am one of the first in our street. However the rest of village had mostly a better ADSL connection and has been connected to FO earlier this year.
Hopefully, you will be soon connected to FO too.

Cheers,
Yves
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[Jun 30, 2020 8:19:34 AM]   Link   Report threatening or abusive post: please login first  Go to top 
Mike.Gibson
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Re: Work unit availibility.

The whole of my telephone exchange area has been readied for Fibre Optic. They just need to sort out a few local problems (most already done) and then they will draw the new cables through the existing ducts all over.

Mike
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Former Member
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Re: Work unit availibility.

Haven't received an ARP work unit since 16:00 UTC (almost 8 hours ago). Usually get about 8 per hour. Is something "stuck"?
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Former Member
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Re: Work unit availability.

Haven't received an ARP work unit since 16:00 UTC (almost 8 hours ago). Usually get about 8 per hour. Is something "stuck"?

And so Murphy meets member. Reduced the queue from 3 to 2 given the greater availability, but number 2 is now 12 hours into computing and no new one waiting to start during the 20 minute upload and report phase... That's heading for an idle thread as it is set for exclusive ARP1.
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[Edit 1 times, last edit by Former Member at Jul 1, 2020 6:00:53 PM]
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adrianxw
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Denmark
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Re: Work unit availibility.

I always have several projects on my machines, if there is no work from one, it runs another. You can adjust the project priorities to get a system to crunch what you want it to crunch. I have no arp work on either of my machines here at this time. Maybe a few of the numerous "waiting for validation" ones will clear.
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[Edit 1 times, last edit by adrianxw at Jul 1, 2020 7:48:45 AM]
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