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World Community Grid Forums
Category: Completed Research
Forum: AfricanClimate@Home
Thread: sending (large) upload files. |
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Thread Status: Active Total posts in this thread: 32
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
I read in the FAQ that the 10 people that het the same workunit too exactly the same computations but will only give a piece of the result file that is why there need to be 10 people doing the same workunit. But I don't mind sending 100 mb and I think a lot of people don't. If you should add in boinc that I can limit my upload speed to 50Kb/s I think a lot of people with cable or xdsl internet do not mind.
So not ten people will crunch the same workunit, less power and less pollution to the atmosphere and/or the computer time can than be used for other projects. Just make a thickbox in the my grid page saying: "I don't mind to upload great chuncks of data (100 MB)"  |
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Sekerob
Ace Cruncher Joined: Jul 24, 2005 Post Count: 20043 Status: Offline |
Have you been looking over my shoulder on my notepad? You did read that it took 1 member 40 minutes just to get 13mb *pre-compressed* back home I suppose. Note sure how resilient the system is on mid transmission interruption.
----------------------------------------At any rate, it's all very novel thus any suggestion or feedback on the experience is welcome. With initially only 82 original work units, start had to be made somewhere without over-complicating the distribution system (it really is if one group only would want 1/10th and the other the works and the different quorums it would require). Coming BOINC has bittorrent features. If the work units were more similar, which they are not, it could be like a group of people uploading and the servers calling from this pool. Whenever the unit on server side is complete, it could send a message to the clients to remove the result.
WCG
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
I'd be happy to have a much larger upload as well. It just depends on the user's ISP contract (monthly limits?) and typical upload speed to the WCG server, which will be different for everyone.
If boinc introduces Bittorrent features they'd be unlikely to work easily on my home PCs (very unforgiving firewall, not to mention the usual NAT router). How many typical users know how to open ports on a router, and how many would bother? |
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retsof
Former Community Advisor USA Joined: Jul 31, 2005 Post Count: 6824 Status: Offline Project Badges: 
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Send the work to Japan. Today's internet "wish-we-had" article says that Japanese internet speeds are 8 to 17 times faster than CABLE MODEMS in the United States, about 100 megabits/second. That's available to everyone. Since WWII trashed everything, they wired the country with newer copper, and recently put fiber all over the place.
----------------------------------------Population density is higher, so they can do it with short loops to the telephone exchanges with knock-your-socks-off DSL. What they get is full screen TV instead of the wallet sized grainy video that we see here.
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Ingleside
Veteran Cruncher Norway Joined: Nov 19, 2005 Post Count: 974 Status: Offline Project Badges: 
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If you should add in boinc that I can limit my upload speed to 50Kb/s I think a lot of people with cable or xdsl internet do not mind. Limiting upload/download-speeds is already included in BOINC, but if my recollection isn't too fuzzy it don't work in v5.2.x or v5.4x.  "I make so many mistakes. But then just think of all the mistakes I don't make, although I might." |
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Ingleside
Veteran Cruncher Norway Joined: Nov 19, 2005 Post Count: 974 Status: Offline Project Badges:
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Have you been looking over my shoulder on my notepad? You did read that it took 1 member 40 minutes just to get 13mb *pre-compressed* back home I suppose. Note sure how resilient the system is on mid transmission interruption. Well, I've never had any problems with CPDN-uploads, if they've interrupted in the middle, they've just continued from wherether they left-off, without any issues. My recollection is a little fussy, but isn't atleast one of the Seasonal Attribution-uploads over 15 MB? In any case, never had any problems with these either. Well, there is one bug that AFAIK still haven't been fixed, if upload-server is out of disk-space, the full upload will happen before you'll get the error "disk full", and client must re-do the whole upload... "I make so many mistakes. But then just think of all the mistakes I don't make, although I might." |
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Sekerob
Ace Cruncher Joined: Jul 24, 2005 Post Count: 20043 Status: Offline |
There's a traffic volume limit on the way, that will balance the types of work, so that you will be able to crunch whenever you want to crunch, yet not exceed that up or download restriction. Good for those on limiting contract. Early on had one that allowed only 1.4gb per month. DUmeter reports i've used 652mb down and 52mb up so far this month (2.5 days) and that's just measured on 1 machine.
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WCG
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
There's a traffic volume limit on the way, that will balance the types of work, so that you will be able to crunch whenever you want to crunch, yet not exceed that up or download restriction. Good for those on limiting contract. Early on had one that allowed only 1.4gb per month. DUmeter reports i've used 652mb down and 52mb up so far this month (2.5 days) and that's just measured on 1 machine. Nowadays there are no down- or upload restrictions in my country (netherlands) by most of the ISP's. If you have you really should go to another ISP and also if you are paying more then 20 euro's a month you should get a cd-rom in less then 15 minutes. Still waiting for fiberglass here. At school they have and in a city in the neighbourhood. I don't like the idea of bittorrent because of the routing poblems stated earlier with the nat configuration. I lot of people will not get that working. And if you have more as 1 computer on your router it will also not work. If WCG has problems with there up- and downspeed there might be a possibility to set up a server at my university to up- and download data. it should not be too hard I think to set up some extra servers in stead of the bittorrent idea. |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Here in the UK the majority of ISPs do have strict monthly limits, this is due to the fact that there is only one big supplier (BT openReach) which charges the ISPs by the gigabyte. Aren't monopolies wonderful?
 I'm on one of the few ISPs with both no limit, and also static IPs (very handy for webserver). On the other hand, they're expensive... |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
This only applies to DSL. Cable is unlimited. But there's a monopoly there, too....
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