The trouble is, there are too many networking variables to easily boil down to
a single parameter.
NIC to router - WiFi (802.11n) is pretty good these days.Router to internet -
depends on locationInternet to project server - I think the example Charles was
thinking of was GPUGrid in Barcelona, which went through a bad connectivity
patch last year, but is communicating properly again now. Doesn't affect their
reliance on high-performance GPUs, which is a different question.
I've just run speedtest on my six year old Windows 7 laptop, and got 48.34
Mbits download and 9.28 Mbits upload over WiFi - that's very close to my home
broadband connection of 50.33 Mbps / 9.765 Mbps. But the results might be very
different in my local cafe / pub / seminar room / public hotspot. We can't
equate connection *type* with connection *speed*.
On Thursday, 30 March 2017, 13:28, David Wallom
<[email protected]> wrote:
Hi Charles,
With the increasing prevalence of mobile computing devices then having the
system (scheduler) doing the test is not really scalable as people move their
devices.
It would be much easier if the clients did this. My Mac for example is able to
tell me the latest network bandwidth if has for any of its interfaces.
David
________________________________________
From: boinc_dev [[email protected]] on behalf of Charles
Elliott [[email protected]]
Sent: 30 March 2017 13:10
To: 'Nicolás Alvarez'; Andy Bowery
Cc: [email protected]
Subject: Re: [boinc_dev] An additional preference to prevent downloading when
on WiFi, to enable downloading only on when connected to cable
Boinc could just download a test file from the Oxford website 5 times and
average the times. If the average was above a limit deemed the minimum
acceptable speed, the user would be permitted to proceed. OW, the Oxford
website would post a very polite, very detailed, and very well written message
to Boinc/the user explaining why a high bandwidth connection is necessary for
the user's progress and enjoyment of Oxford's project.
One of the Boinc GPU projects, as I recall in Spain, does this now WRT the
capacity of the user's GPU(s). It is no fun for, or use to, anyone if the user
processes a work unit on an older GPU, the GPU overheats, and the WU fails 3/4
of the way through. It is annoying though.
Charles Elliott
-----Original Message-----
From: boinc_dev [mailto:[email protected]] On Behalf Of
Nicolás Alvarez
Sent: Wednesday, March 29, 2017 3:40 PM
To: Andy Bowery
Cc: BOINC Developers Mailing List [[email protected]]
Subject: Re: [boinc_dev] An additional preference to prevent downloading when
on WiFi, to enable downloading only on when connected to cable
2017-03-29 14:45 GMT-03:00 Andy Bowery <[email protected]>:
> Hi,
>
> We would be interested in an additional BOINC preference, a tickbox on the
> 'Network' tab, with something like 'Download only when connected to a high
> bandwidth connection'. Ticking the box of this preference would prevent
> download of the application and supporting files when the machine (for
> example: a laptop) was connected only to WiFi and not connected to a higher
> bandwidth networking cable. Would it be possible for this to be scheduled to
> be added as an item to be included in a later release?
>
> With regards,
>
What does "high bandwidth connection" mean, how could BOINC know if it's
connected to one?
--
Nicolás
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