any tips on installing in a cyber cafe?

gravywavy
gravywavy
Joined: 22 Jan 05
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RE: With 1GHz - 1.5GHz

Message 13651 in response to message 13649

Quote:

With 1GHz - 1.5GHz machines you would get a crunch time of 12-18H / WU, right? Do you think a download time of 1 - 1.5H / data set would be unreasonable if your connect to settings allows for it, considering that crunch time? Now lets run some numbers. Lets say you set the limit to 8Kbit / sec. 3600 sec / H = 3.6 MB / H. A 6MB data set then would take 1H 40min to download (14MB = 4H). Considering worst case scenario, how big percentage of the bandwidth would 64Kbit/sec be?

On reflection, I am more concerned about the uploads. The eight machines share a single ASDL (2M in, 256k out). In normal use, the packets out are simply asking for websites and acknowledging inbound data packets. Get several E@H clients all sending at once, fill up the outbound link, and nobody can click on a web page for a few moments.

~~gravywavy

Sharky T
Sharky T
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RE: On reflection, I am

Message 13652 in response to message 13651

Quote:
On reflection, I am more concerned about the uploads. The eight machines share a single ASDL (2M in, 256k out). In normal use, the packets out are simply asking for websites and acknowledging inbound data packets. Get several E@H clients all sending at once, fill up the outbound link, and nobody can click on a web page for a few moments.

You could use "Use network only between the hours of" option in General prefs
and set the times just before the shop opens or closes(or do research when there's least activity ;).
I guess they don't run the machines all night.

But this line is added to the option : "Enforced by versions 4.46 and greater".
*Edit:Doh,Saw that Kilcock already mensioned this option. :P


gravywavy
gravywavy
Joined: 22 Jan 05
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RE: I guess they don't run

Message 13653 in response to message 13652

Quote:

I guess they don't run the machines all night.

yes, Sharky, and it is worse than that: Turned on when first user sits at that box, once on, stay on all day; turned off at closing time.

What I'd really like is a 'don't use network while machine in use' option (ie, carry on crunching but don't use net), but don't seriously expect the BOINC crew to add an option just for me... Combined with a traffic limit of 1/8th of the upload band, there would always be proportional bandwidth for the other machines.

I guess if I go for 1/16th then that is half the uplink taken in the rare worst case, and still allows 16k in the up channel, which does make transfers possible. No doubt some dial up users have a similar setting if they want to surf as well as upload.

Unless anyone has a better idea, I've talked myself into no scheduled restrictions on net activity, and limit to 16k bandwidth. Better Einstein be delayed than sacked.

~~gravywavy

Kilcock
Kilcock
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Maybe there are third party

Maybe there are third party solutions.
eg. M'soft has Bits to use idle bandwidth for automatic update downloads. It can be used by and for other purposes as well, but I don't know if and how to implement it.

Ziran
Ziran
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I think you have come to a

I think you have come to a good conclusion on how to do this. Don't forget that BOINC set the bandwidth restrictions in Kbytes/sec, not Kbits/sec. So i guess you decided to set the restrictions to 16 Kbytes/sec down and 2 Kbytes/sec up. That would give you an download speed of 57.6Mbyte/H and upload of 7.2 Mbytes/H. That would mean that you would download a 6Mbyte data set in 6.25 min. I wouldn't consider that slow. Cant remember how big the result file is, but i guess it would be under one meg, so you would upload it in under 10 min. With a crunch time of about 2 days on these machines, what connect to time are you considering?

Then you're really interested in a subject, there is no way to avoid it. You have to read the Manual.

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