AG Scheduling and Questions...
Rick Stevens
stevens at mcs.anl.gov
Mon Nov 8 13:51:21 CST 1999
There has been some confusion about AG scheduling for the SC99... I'll try
to shed some light on some related
issues..
I Believe that a number of groups are planning on using the AG to transmit
a variety of activities going on in booths and to connect one or more
remote sites to AG events that are happening in Booths..
I think there will be 4 or 5 booths on the show floor with full AG
capabilities (fully AG compliant nodes), with
perhaps a few dozen groups with less than AG compliant nodes).. One of the
key points for the AG nodes
that are compliant is they should be able to support a richer software
capability than those that are not, and with higher quality (audio in
particular)...
Argonne has been rushing to develop some new software for the AG that will
support multiple AG sessions simultaneously on different "channels".. This
concept we call "Virtual Venues". Further announcements about how to get
the software and access to the web site for it use will be made later today
and over the next few days (it is in alpha type release, but it relies on
the node being fully AG capable).. in a nutshell we have developed a
virtual collection of linked meeting rooms that can be used to host a
particular AG session.. you can sign up to reserve them by name of the
location and time slot. Then either automatically or manually (depending on
how well the new software is working) You will be allocated the mcast and
related resources to support the scheduled session and automatically
"teleported to the reserved venue". This means that two or more unrelated
events can be going on the AG at the same time each using a disjoint set of
AG nodes. It also means that other sites that want to participate in a
particular AG event can look on the schedule and see which Virtual Venue is
being used for each event and wether they are open for additional
participation. All of this means the following..
EACH AG node needs to have TWO TYPES of SCHEDULES.. one schedule is the
event to virtual venue mapping, and the other schedule is which virtual
venue a node will be at at a particular time, indicating a which particular
AG node is participating in which venue at a given time. We will be
posting the ANL booth AG schedule on the AG website and welcome others to
sign up to participate in those events and also to generate your own
events. I know that PACS has already scheduled some events, and we would
like to get these posted on the Virtual Venue schedule ASAP. Other events
are welcome to. One such set of Demos is the QoS demos that we are
planning between ANL Booth, NCSA Booth (we hope), LBNL Booth etc.)
We are posting on the AG web site the Virtual Venue schedule which needs to
be filled in by the various groups that are sponsoring AG events that they
want to advertise to the AG universe.. Each booth and other AG sites needs
to figure out which specific events (and which virtual venue) they will
tune in to at what time and which they are originating/hosting and which
they are just participating in..
Sorry for so much dense text.. I think that an AG session on Thursday this
week would be a good time to
try out this new Virtual Venue capabilities and help refine the schedules..
--Rick
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