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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 |
Follow-up;
A friend of mine has said to me, Another thing is the new WCG AfricanClimate@Homeproject's redundant calculation policy: To our point of view it is an enormous waste of electricity to just redundantly compute the same work units because one does not trust upload capacities of the volunteers. Why not split the 100 MB results in small 5 MB packets and upload these sequentially? Compression and checksumming allows for simple and reliable reconstruction of the entire result data set on the server side. A new work unit can even be processed while remaining chunks of previous results are being transferred. You may also consider giving a special extra file transfer credit to encourage people's participation. Just some ideas... thanks, suguruhirahara |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
I got a suggestion too. What about giving points for uploading, as well as crunching? It will maybe encourage members with good internet-capacity to join this project.
Another suggestion is to give more information about what projects that demand more resources of any kind. All we got today, is minimum requirements for joining a project, and I think most of us choose projects by interests only. I don't really care how my computer is used, as long as it is helping any important project, and would switch project if it was more efficient for another project. |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
In Argentina we had an attempt to limit ADSL transfers, but we users united and boicotted the company, and thus it's still without monthly limits.
The only problem might come from the fact that our ADSL has a very big A, for example, my conection is 2.5 Mbps download, 256 Kbps upload. |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
is there any way of avoiding so many copies to be distributed? Is it the first priority?
thanks, suguruhirahara |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Hello suguruhirahara,
We are experimenting with our first project that requires large uploads. After a while we will know more. This gives us a chance to see how many members have problems with uploads of various sizes. Lawrence |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Hello suguruhirahara, We are experimenting with our first project that requires large uploads. After a while we will know more. This gives us a chance to see how many members have problems with uploads of various sizes. Lawrence Once AC@H resumes, perhaps we should start a new thread: What was your WU upload time? give your bandwidth speed test results, and how long it took you to upload the completed WU. |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Hello suguruhirahara, We are experimenting with our first project that requires large uploads. After a while we will know more. This gives us a chance to see how many members have problems with uploads of various sizes. Lawrence I see, thanks. Please keep up the nice work :) suguruhirahara |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Is the problem that ten units have to crunch same task been fixed?(hope you understand what I am trying to say)
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Sekerob
Ace Cruncher Joined: Jul 24, 2005 Post Count: 20043 Status: Offline |
If you consider it a problem, No., 10 replicas each sending 1/10th of the result back it's how it works.
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Does all ten have to crunch the same unit before returnng the result? If yes, then it is a problem. I don't see any point of using my cpu for the same task as nine others, then it is better to spend it somewhere else. I have no limits at upload, and have no problem uploading a unit within the time it takes to crunch the next one.
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