Core_21 traffic query

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Core_21 traffic query

Postby billford » Fri Nov 20, 2015 9:26 am

Absolutely nothing to do with the current instability problems :wink:

It occurred to me that some of these WUs (eg P9625-43) are pretty big, up around 50MB, and it wouldn't surprise me if bigger ones are on the way.

A reasonably quick GPU can process one of these in around 3 hours or less, in the worst case that's about 12GB download per GPU per month... even with three rigs that wouldn't be a problem for me but could be for some with limited bandwidth from their ISP.

Possibly a case for resurrecting the max-packet-size flag to it's (I assume) original function? I appreciate that this might (depending on flag/card type/client version interactions) currently clash with some Core_15 users, so maybe for when Core_15 goes EOL?
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Re: Core_21 traffic query

Postby toTOW » Fri Nov 20, 2015 3:04 pm

I agree with your idea of resurrecting "max-packet-size" setting.

I'm also thinking about people with unlimited but slow connections, that might not be able to complete the download/upload of the WU before the server timeout occurs (15 minutes typical, 30 on servers with big DL/UL WUs).
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Re: Core_21 traffic query

Postby Nathan_P » Fri Nov 20, 2015 4:35 pm

Good idea, especially when people are stuffing 2-3 gpu's in a rig, even a generous data allowance would soon get chewed up.
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Re: Core_21 traffic query

Postby ChristianVirtual » Fri Nov 20, 2015 7:52 pm

Similar to here: https://www.reddit.com/r/foldingathome/ ... partially/
Though not data-driven but restricting on runtime ... Competing for a parameter :P
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Re: Core_21 traffic query

Postby billford » Fri Nov 20, 2015 8:08 pm

ChristianVirtual wrote:Competing for a parameter :P


That was my thought- same request, different motives :lol:
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Re: Core_21 traffic query

Postby toTOW » Sat Nov 21, 2015 11:24 am

max-packet-size has always been set up based on data transfer sizes ... so it's not competing, it's the historical meaning of the parameter :D
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Re: Core_21 traffic query

Postby MARSTG » Fri Nov 18, 2016 1:04 am

I have a question on the same subject : how much is in general the size of a core 18 or 21 WU? I think I have seen in a log something like 14.5 MB for the download of a Core 18 WU but how much is the upload? I am not on a slow connection but on one tethering from cellphone and I would like to get an informed answer to see how much I can fold.
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Re: Core_21 traffic query

Postby bruce » Sat Nov 19, 2016 5:40 am

The concept of max-packet-size originated when uploads and downloads were limited by 5kb modems. Folding has generally completed a huge number of studies which could reasonably be managed by the commonly used settings of SMALL/NORMAL/BIG. Most current research studies now involve much bigger proteins but they're also being handled by much faster computers and certainly much faster up-/down-load speeds.

We need some new settings on both the client and the server, and unfortunately until those settings are adjusted, max-packet-size is effectively unsupported.

The reddit request makes sense to me, but it's up to the Pande Group to figure out the best way to respond, and discussing it here isn't an effective way to facilitate the best response from them.
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