1. 2012 DiFX Users Meeting, Sydney John Spitzak Purpose: Provide a User Interface for specific needs of USNO o Run and organize repetitive DiFX jobs (daily “Intensives”, weekly R4’s, etc.) o Monitor health of correlator components o Non-expert operation Provide a general purpose tool for the DiFX community USNO DiFX GUI What it Does: Given a.vex file and some data (Mark5 module or file), produces DiFX output o Replace command line operation Monitors hardware (processors, Mark5’s, modules) Monitors all running jobs Implements hardware controls (reboot, reset, etc.)

2. 2012 DiFX Users Meeting, Sydney John Spitzak Operational Specifics DiFX Communication: mk5daemon Processor Node UDP Multicast Network mk5daemon Processor Node mk5daemon “Head” Node mk5daemon Processor Node mk5daemon Mark5 Unit mk5daemon Mark5 Unit guiServer USNO GUI Any Compute Device w/Java TCP

3. 2012 DiFX Users Meeting, Sydney John Spitzak Operational Specifics DiFX Communication: mk5daemon Processor Node UDP Multicast Network mk5daemon Processor Node mk5daemon “Head” Node mk5daemon Processor Node mk5daemon Mark5 Unit mk5daemon Mark5 Unit guiServer USNO GUI Any Compute Device w/Java TCP USNO GUI Any Compute Device w/Java USNO GUI Any Compute Device w/Java USNO GUI Any Compute Device w/Java

4. 2012 DiFX Users Meeting, Sydney John Spitzak GUI Top Level:

5. 2012 DiFX Users Meeting, Sydney John Spitzak New directory New.vex file destination.vex file source Create a New Experiment:

6. 2012 DiFX Users Meeting, Sydney John Spitzak Edit.vex file content.v2d “Setup” parameters.v2d “Antenna” items Create a New Experiment:

7. 2012 DiFX Users Meeting, Sydney John Spitzak Select scans by time or individually Up-to-date EOP View/Edit.v2d Create a New Experiment:

8. 2012 DiFX Users Meeting, Sydney John Spitzak Jobs Ready to Run:

9. 2012 DiFX Users Meeting, Sydney John Spitzak.input and.calc editors Choose processors Running a Job -.machines and.threads:

10. 2012 DiFX Users Meeting, Sydney John Spitzak Running a Job – Feedback from mk5daemon:

11. 2012 DiFX Users Meeting, Sydney John Spitzak More Fun Things It Can Do: Passive Monitor, Database

12. 2012 DiFX Users Meeting, Sydney John Spitzak More Fun Things It Can Do: Hardware Controls

13. 2012 DiFX Users Meeting, Sydney John Spitzak More Fun Things It Can Do: Mark5 Modules

14. 2012 DiFX Users Meeting, Sydney John Spitzak More Fun Things It Can Do: Versions, etc.

15. 2012 DiFX Users Meeting, Sydney John Spitzak Work In Progress: Make Database Work Job Scheduler (Real) Data Feedback o Restart where? o Plots (difx_monitor?) Documentation o Some good, some weak, most missing o Tutorials (completely absent) Security o Encode commands based on password o No passwords saved in setup file o Optional if you trust your network Chase What Everyone Else Is Doing

16. 2012 DiFX Users Meeting, Sydney John Spitzak Where To Get It: Under DiFX SVN Source Tree applications/gui/trunk guiServer is C++ (needs to be compiled): …/guiServer/src/guiServer [PORT#] GUI Itself is Java “.jar” File: java –jar …/gui/dist/gui.jar Documentation is HTML: …/doc/intro.html