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Basic foilset Summary of DATORR Users Group

Given by Piyush Mehrotra at Second DATORR Meeting Sandia National Laboratory on February 15-16 1999. Foils prepared February 20 1999
Outside Index Summary of Material

DATORR had general meeting followed by separate meetings of subgroups concerning the two DATORR Interfaces
  • Resource to Middleware(Services)
  • Users or Middleware to Client
This foilset describes the second interface

Table of Contents for full HTML of Summary of DATORR Users Group

Denote Foils where HTML is sufficient
1 User/Application view of Architecture Piyush Mehrotra ICASE Group Leader DATORR Meeting Sandia February 15-16 99
2 Definitions
3 Definitions
4 Definitions
5 User scenario
6 User scenario (contd.)
7 User scenario (contd.)
8 User scenario (contd.)

Outside Index Summary of Material

HTML version of Basic Foils prepared February 20 1999

Foil 1 User/Application view of Architecture Piyush Mehrotra ICASE Group Leader DATORR Meeting Sandia February 15-16 99

From Summary of DATORR Users Group Second DATORR Meeting Sandia National Laboratory -- February 15-16 1999. *
Full HTML Index
HTML version of Basic Foils prepared February 20 1999

Foil 2 Definitions

From Summary of DATORR Users Group Second DATORR Meeting Sandia National Laboratory -- February 15-16 1999. *
Full HTML Index
Resource
  • compute engines -- workstations to supercomputers
  • visualization hardware
  • networks
  • storage,
  • databases,
  • instruments (wind tunnels, telescopes)
  • codes, libraries,
  • licenses, ...
  • represented by "resource object"
HTML version of Basic Foils prepared February 20 1999

Foil 3 Definitions

From Summary of DATORR Users Group Second DATORR Meeting Sandia National Laboratory -- February 15-16 1999. *
Full HTML Index
Users
  • administrators/super users
  • developers
  • end users -- single users (collaborative groups may have architectural implications)
User workspace - desktop
  • personal environment
  • real and virtual resources
  • user (logical) view of the global set of resources
HTML version of Basic Foils prepared February 20 1999

Foil 4 Definitions

From Summary of DATORR Users Group Second DATORR Meeting Sandia National Laboratory -- February 15-16 1999. *
Full HTML Index
Task is a
  • a simple task: a set of resources (data sources and sinks) + an action to be performed on them, or
  • a compound set of tasks + resources
  • dependencies
  • represented by "task object" which may have properties, e.g., a context
Job is an instantiation of a task object
  • represented by "job object"?
HTML version of Basic Foils prepared February 20 1999

Foil 5 User scenario

From Summary of DATORR Users Group Second DATORR Meeting Sandia National Laboratory -- February 15-16 1999. *
Full HTML Index
Login (to the gateway?)
  • authorization/authentication (at multiple levels)
  • one id
  • generates a "user object"
Managing and monitoring the user workspace
  • reporting status info of various resources in the workspace
    • on demand
    • at user defined events
HTML version of Basic Foils prepared February 20 1999

Foil 6 User scenario (contd.)

From Summary of DATORR Users Group Second DATORR Meeting Sandia National Laboratory -- February 15-16 1999. *
Full HTML Index
Task construction
  • access to environment for:
    • submodules
    • loading and saving of predefined tasks
  • user interface issues
  • generates a "task object"
HTML version of Basic Foils prepared February 20 1999

Foil 7 User scenario (contd.)

From Summary of DATORR Users Group Second DATORR Meeting Sandia National Laboratory -- February 15-16 1999. *
Full HTML Index
Task submission
  • resource request
    • task object + constraints
    • "syntax" of constraints has to be flexible; extensible
    • "match making" model: find match between the task request and the job resource space which is a subset of the user workspace of the real and virtual resources
    • needs to support negotiation in the match making process
HTML version of Basic Foils prepared February 20 1999

Foil 8 User scenario (contd.)

From Summary of DATORR Users Group Second DATORR Meeting Sandia National Laboratory -- February 15-16 1999. *
Full HTML Index
Job Management
  • monitoring the execution status
    • job status info
  • job suspension/killing/check pointing
  • monitoring data
  • steering
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