[Difx-users] Next DiFX workshop fragment -- date and zoom

[Greg Lindahl]

I added a bunch of notes to the Wiki page about questions -- Walter and
Mark, you especially should look over the Q&A.

Also, whoever asked the very first question relating a tale of woe about
switch port routing timeouts leading to network flooding, I believe I have
filled in the correct details of the problem. Of course, I was thinking so
hard about the problem that I failed to record the name of the person
speaking!

One open question that it would be nice to have a discussion about is
"what's the right thing to do about missing data?" It's complicated because
there are a lot of moving parts -- digitizer -> recorder -> etransfer? ->
difx. In these etransfer talks we had discussion and questions about how to
prevent missing data from causing difx to pause when not wanted. It would
be nice to write down what difx does, and have tests that enforce that difx
continues to behave the same way.

On Thu, Feb 18, 2021 at 4:47 PM Walter Brisken via Difx-users <
difx-users at listmgr.nrao.edu> wrote:

>
> Hi all,
>
>
> We recorded today'z zoom miniworkshop.  It can be found at:
>
>
> https://nrao-edu.zoom.us/rec/share/ePzsAN7VyOpmfpUQtrVvCSEjJWZhox3pGA-BiwNXB03pJgWq8MDIOim-nRLDgR1e.Gg_LH_7WBf6LKNB6
>
> Also Adam has started a page for the mini-workshop:
>
>
> https://www.atnf.csiro.au/vlbi/dokuwiki/doku.php/difx/meetings/2020miniworkshop4
>
>
> We did not come to a conclusion on where/when the next mini-workshop will
> be, but there was enthusiasm to have a meeting to go over the "usual
> things" as noted in the email below.  We're looking for a volunteer to
> host the meeting and help set a date/time.
>
>
>         -Walter
>
>
>
>
> -------------------------
> Walter Brisken
> NRAO
> Deputy Assistant Director for VLBA Development
> (505)-234-5912 (cell)
> (575)-835-7133 (office; not useful during COVID times)
>
> On Thu, 11 Feb 2021, Walter Brisken wrote:
>
> >
> > Hi all,
> >
> > Those who entered time on the Doodle poll generally showed good
> availability.
> > Since creating the poll I got two immovable constraints on Feb 17, so
> lets go
> > with Feb 18.  Since I don't anticipate a super long meeting, lets
> convene at
> > Feb 18 2200 UTC at the zoom coordinates below. We can go longer than an
> hour
> > as long as folks remain available.
> >
> > I haven't received any additional input on the agenda so I suggest we go
> with
> > that listed below, but feel free to come with a small topic of your own.
> >
> > Also, consider if you'd like to host the following workshop fragment or
> have
> > topics for the next one.  Before the series ends we should probably
> arrange
> > to have some of the standard topics covered, such as updates from those
> > running DiFX, discussion of the todo list, release planning, and of
> course
> > the group photo.  I'm not sure how to handle doc-a-thon and hack-a-thon
> > sessions...
> >
> >
> > Topic: DiFX Users/Developers Workshop
> > Time: Feb 18, 2021 03:00 PM US/Mountain  (2200 UTC)
> >
> > Join Zoom Meeting
> > https://nrao-edu.zoom.us/j/91250213445
> >
> > Meeting ID: 912 5021 3445
> > One tap mobile
> > +12532158782,,91250213445# US (Tacoma)
> > +13462487799,,91250213445# US (Houston)
> >
> > Dial by your location
> >         +1 253 215 8782 US (Tacoma)
> >         +1 346 248 7799 US (Houston)
> >         +1 669 900 6833 US (San Jose)
> >         +1 301 715 8592 US (Washington DC)
> >         +1 312 626 6799 US (Chicago)
> >         +1 646 876 9923 US (New York)
> > Meeting ID: 912 5021 3445
> > Find your local number: https://nrao-edu.zoom.us/u/ayQ8rAf6b
> >
> > Note: we will record the meeting for those that cannot attend "in
> person".
> >
> >       Hope to see you next week,
> >
> >       Walter
> >
> >
> > -------------------------
> > Walter Brisken
> > NRAO
> > Deputy Assistant Director for VLBA Development
> > (505)-234-5912 (cell)
> > (575)-835-7133 (office; not useful during COVID times)
> >
> > On Fri, 29 Jan 2021, Walter Brisken wrote:
> >
> >>
> >>  Hi all,
> >>
> >>  I will be hosting what will be the fourth (I think) fragment of thie
> >>  Pandemic DiFX Workshop Miniseries.  At yesterday's meeting we generally
> >>  focused on mid February in the 2100-2300 UTC time range.  To find a
> slot
> >>  of maximum appeal, please note your availability at:
> >>
> >>  https://doodle.com/poll/w6qb8u7rtfbzf28p
> >>
> >>  Main topics will be:
> >>
> >>  1. (short topic) Some changes to error codes in vdifio and discussion
> on
> >>  whether similar changes should be propagated to other bits of code.
> >>
> >>  2. Updates on eVLBI.  JIVE and VLBA will report on recent activity.
> Other
> >>  groups undertaking eVLBI activities are welcome to contribute as well.
> >>
> >>  3. Other small topics are welcome.  Just let me know.
> >>
> >>  Please respond to the Doodle Poll by Feb 10.
> >>
> >>   Cheers,
> >>
> >>   Walter
> >>
> >>  -------------------------
> >>  Walter Brisken
> >>  NRAO
> >>  Deputy Assistant Director for VLBA Development
> >>  (505)-234-5912 (cell)
> >>  (575)-835-7133 (office; not useful during COVID times)
> >>
> >>
> >
> >
>
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>


-- 
Greg Lindahl
Software Architect, Event Horizon Telescope
Smithsonian Astrophysical Observatory
60 Garden Street | MS 66 | Cambridge, MA 02138
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