Hard to tell not knowing what's causing the bug! We'll just have to wait and see :-)
-tom
Kate Keahey wrote:
> Tom,
>
> Many thanks! What changes will need to be made to the demo after you fix
> the bug? I asked Charles to set up the credentials and the gridmapfile.
>
> At 08:39 PM 11/2/2001 -0500, Thomas W. Fredian wrote:
> >Here is the current status of the work.
> >
> >1) The IDL visualization problem with the data being written by efit is a very
> >obscure bug. It appears that some of the data is getting corrupted somehow
> >which is causing some of the computations done in the IDL animation code
> >to get into an infinite compute loop. I believe I will be able to work on this
> >without
> >the sc computers next week. In the mean time we do have a working demo which
> >is reading from the datafiles that don't have this problem.
> >
> >2) I've added the checking for the status in the netlogger calls and
> >re-establish
> >the connection to the NetLogger if the writes fail and re-attempt the writes.
> >
> >3) Qian has installed the efit program on the sc cluster and it works fine!
> >I've set it up to run from my account for the demo. IMPORTANT>> Apparently,
> >the sc cluster is not recognizing the scdemo credentials. There is no map
> >for the
> >scdemo credential to my account in the gridmap file. <<IMPORTANT
> >
> >Mary,
> >
> > I've put an scemo-idl.tgz in diesel.lbl.gov:~twf which has the NetLogger
> >instrumented controller. On natasha you will need to:
> ># cd /usr/local/fusionDemo/idl
> ># tar zxf scdemo-id.tgz
> >
> >If you want to run the controller with the NetLogger you'll need to add a
> >line to
> ># echo 'netlogger_server terra.mcs.anl.gov:14835' >>
> >/usr/local/fusionDemo/config/envsyms
> >
> >-tom
> >
> >Kate Keahey wrote:
> >
> > > 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
> > >
> > >
> > ===============================================================================
> > >
> > > This message was sent to the SciDAC National Fusion Collaboratory (NFC)
> > > workers list nfc-sc01. Visit the Collaboratory at
> > > <http://www.fusiongrid.org/>.
> > >
> > > To unsubscribe from this list, please send a message to
> > > majordomo@fusion.gat.com with the following text in the *body* of the
> > > message: unsubscribe nfc-sc01
> > >
> > > David P. Schissel: <schissel@fusion.gat.com>
> > <http://fusion.gat.com/~schissel/>
>
> __________________________
> Dr. Kate Keahey
> Math & Computer Science Div.
> Argonne National Laboratory
> Argonne, IL 60439, USA
> (630) 252-1673
===============================================================================
This message was sent to the SciDAC National Fusion Collaboratory (NFC)
workers list nfc-sc01. Visit the Collaboratory at
<http://www.fusiongrid.org/>.
To unsubscribe from this list, please send a message to
majordomo@fusion.gat.com with the following text in the *body* of the
message: unsubscribe nfc-sc01
David P. Schissel: <schissel@fusion.gat.com> <http://fusion.gat.com/~schissel/>
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