All,
we had the last telecon related to the sc demo today, so I am posting a
summary of issues since they will have to be resolved on this list now.
Please let me know if I forgot about something (practically a given ;-) or
correct me if I misrepresented something.
Fist some loose ends pertaining to the demo:
1) Qian and Tom are trying to make the IDL visualization work with data
that is actually produced by efit (as opposed to the slightly "fake"
approach we are using now). Qian will get an account on the Argonne sc
machines, and will try to resolve it. If necessary she can also reproduce
the problem on Tom's workstation so this can be worked on even after the sc
machines are shipped if necessary.
2) Tom will add a check for write status to the netlogger writes
3) Qian will install efit on the Argonne sc cluster so we have a backup if
the network goes down.
4) Chris will make some animations of the visualization of the data
produced by efit and they will be accessible via a webpage. They require no
special hardware or software beyond what comes with Windows to run. Chris
will also send some explanations and images to David to produce a handout
for the visualization part. Kate and Mary will meet with David on Sunday
and get updated on what Fusion scientists want from visualization, and the
ground breaking achievements this collaboratory will produce so they can
later convincingly pretend to know something about it.
The place to change default settings for the netlogger, database and efit
is /home/twf/fusion/fusionDemo/config/envsyms (Tom, if I ever ask you
again, which no doubt will happen, feel free to bounce this email to me
;-). Or they can be changed at command line.
We also discussed some things that we see as accomplishments/interesting
things about this demo. Here is a summary. Feel free to add/delete/disagree.
1. development
- development comprised globus extensions to MDSplus and a couple of 10
line shell scripts
- took ~ 2 weeks
- by application scientists
- expert in application-specific software but with no previous exposure to
globus
2. what this software represents
- a real first step towards creating a fusion grid; the software will no
doubt evolve, but on the existing base (as opposed to being replaced)
- the components developed to gridify efit will be reused to gridify other
Fusion applications, efit was a proof of concept
- this is not a throwaway prototype
3. value added
- the most important thing added over what MDSplus already had was secure
environment
4. what made all this possible
- the Fusion community was ready for grids (had the foresight, approach,
software, expertise, need...) so that the port to grids was an extension of
an existing approach rather than a revolution
- we have the right grid abstractions to do this kind of thing (
non-invasive, but right amount of functionality)
5. technical aspects
- port to Globus 2.0 was relatively easy
Did I omit anything?
__________________________
Dr. Kate Keahey
Math & Computer Science Div.
Argonne National Laboratory
Argonne, IL 60439, USA
(630) 252-1673
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This archive was generated by hypermail 2.1.1 : Fri Feb 08 2002 - 13:34:29 PST