GridPP Meeting, Cambridge, 15 Feb 2002

1
UCL Testbed 1 status report

• Paul Mealor

2
Machines
Imperial RB
RAL country GIIS
3
Installation

• Used the Kickstart mechanism from Andy McNab
• Started with a very early version of Globus and
  EDG software
• Upgrading machines (somewhat slowly) to V1.0.0
  (or V1.1.0 when lists become available)

4
Job submission

• Submitting jobs to the RB at IC
• Simple jobs successfully run, submitted to a CE
  at IC from one of the three TB1 machines at UCL
• Teething problems
• Cant get the results back!
• This may be because of version differences
• Uses the EDG software

5
Job submission

• Using the RB at IC to submit jobs (cont)
• Work ongoing
• progress is good so far
• will hopefully be able to register CEs at UCL
  with the RB

6
Job submission

• Also tried Globus job submission system
• RAL and Bristol
• Not so much success
• Not concentrating on this anyway, as Globus
  system does not include sandboxes c.

7
Job submission

• Other tests
• Java GRAM interface (Janice Drohan)
• Still under development
• Attempts to interact with Globus 2 gatekeeper
• Successfully submits jobs to our local CE

8
Globus MDS

• Machines successfully registering to the UCL GIIS
• GIIS successfully registering to the RAL country
  GIIS.
• When it was up, the Datagrid GIIS at CERN showed
  metadata from UCL!

9
Ftree MDS

• Machine metadata successfully cached by UCL GIIS
• GIIS has appeared at the Ftree country GIIS at RAL

10
CE

• Installed up to the point of telling it where PBS
  was to be found
• MDS produces some errors in the tree which look
  sensible
• PBS is being installed as we speak

11
SE

• No luck yet
• Original version of TB1 we installed didnt
  really work
• SE will probably be the last machine to be
  reinstalled

12
MDS

• Other checks
• Java info-system browser (Janice Drohan)
• Looked at various GRISs and GIISs (at UCL, RAL,
  CERN)
• Some problems since most recent version of TB1
  installed at UCL
• Extra EDG info seems to confuse queries
• Globus has mds-vo-namelocal,ogrid naming
  context
• EDG ogrid naming context has
  mds-vo-namelocal below it

13
MDS
14
END