glast large area telescope isoc review 15 february 2006
DESCRIPTION
Gamma-ray Large Area Space Telescope. GLAST Large Area Telescope ISOC Review 15 February 2006 FSW Activities, Organization, and Resource Needs Jana Thayer Stanford Linear Accelerator Center [email protected] (650) 926-4596. Outline. Introduction to FSW Main Responsibilities - PowerPoint PPT PresentationTRANSCRIPT
GLAST Large Area TelescopeGLAST Large Area Telescope
ISOC Review15 February 2006
FSW Activities, Organization, and Resource Needs
Jana ThayerStanford Linear Accelerator Center
[email protected](650) 926-4596
Gamma-ray Large Gamma-ray Large Area Space Area Space TelescopeTelescope
15 Feb 2006 ISOC Review - FSW 2
OutlineOutline
• Introduction to FSW• Main Responsibilities• Activities Over Time• Organization• Resource Needs
– People– Space and facilities– Things
• Summary
15 Feb 2006 ISOC Review - FSW 3
Introduction to Flight Software (FSW)Introduction to Flight Software (FSW)
• The LAT flight software code base includes all on-board software
• The flight software team – – Develops, maintains, and tests the software that configures
the instrument and supports instrument housekeeping and data acquisition by the LAT
– Provides the means for configuring the instrument for data collection, retrieving event data from detectors on the instrument, and storing that data for transmission to the ground for subsequent analysis by investigators
– Develops and maintains the infrastructure that is used to develop and test the on-board software
15 Feb 2006 ISOC Review - FSW 4
FSW – Major ResponsibilitiesFSW – Major Responsibilities
• Develop, test, and maintain flight software
– Develop new on-board filters
– Develop diagnostic code in response to problems
– Validate parameters and software for upload
– Perform regression testing/validate new code
• Develop and maintain software tools for the development, testing, and documentation of the on-board flight software
• Maintain the tools that track LAT Configuration
– Software versions
– Uploaded data files, parameters
• Maintain the Dataflow lab
– Maintain all flight spares, EGSE, and teststands including Testbed
– Develop this space into a facility for troubleshooting, verification/validation, and running operational scenarios
• Maintain and develop documentation
– Procedures, User’s Manuals, Technical Documents, Website, etc.
• Monitor the dataflow system and help resolve instrument anomalies
15 Feb 2006 ISOC Review - FSW 5
FSW Activities - BreakdownFSW Activities - Breakdown
Code TestIT/
InfrastructureMaintenance
Networks
Tools
Flight Code Base
Build Regression
New Code
Hardware RPM
JIRA
Filter Development
Operational Scenarios
(ATS)
Other
Diagnostics
GRB Response
Development
Documentation
Internal Tools
CMX
FMX
perl Doxygen
gccpython
FES Dataset Preparation/
Tracking
ISOC FSW
Other
Flight Build
Construction
Release Management
Dataflow Lab
Testbed/Teststands
Hardware
FSW Version Control
Other
MCR
Dataflow Lab
SLAC Linux
Environment
SLAC Windows
Environment
SNITZ
SLAC
Computer Management
Account Management
Operations
LAT Configuration
Version Control
Instrument Monitoring
FSW Web Site
VxWorks
FSW Scientist/SW Developer
MTech/ETech
Tech Writer ISOC
SLAC/SCCS
Configuration Manager
Operational Scenarios
15 Feb 2006 ISOC Review - FSW 6
FSW Activities – PresentFSW Activities – Present
• Current Activities
– Finish code development• GRB response• FMX (tool for tracking LAT Configuration)
– FQT (Flight Qualification Testing)• Regression testing FSW builds• Formal testing of build containing full functionality
– I&T support • Adding functionality to existing code base• Troubleshooting/debugging
• Current staffing
– SLAC staff • 1 FSW lead • 6 SW developer/physicist + 1 FSW Test• 1 Tech Writer/Web developer
– External Contributors• 2 SW developers (NRL)• 2 FES/filter (OSU)• 1 Configuration Management (GSFC)
15 Feb 2006 ISOC Review - FSW 7
FSW Activities – FutureFSW Activities – Future
• Future Activities– Support I&T and system testing at NRL– Maintain code base and retain the ability to grow the flight software
• Filter development• GRB Response development• Creation of diagnostic code to debug problems and spy on state
of LAT – Maintain internal software tools– Validation/Verification of new software uploads, parameters, and
procedures– Interface with other ISOC groups to –
• Monitor dataflow system: trigger, filter, background rates, etc.• Define new instrument configurations• Troubleshoot/resolve instrument anomalies
• Future steady-state staffing plan– 4 – 5 SW developer/physicists
• Contribute to FSW and PVO– Some SLAC staff will have moved from GLAST to other projects
• Some support available
15 Feb 2006 ISOC Review - FSW 8
Retaining KnowledgeRetaining Knowledge
• On-board software functionality:– Primary and secondary boot process/rad750 processor– Collection and transmission of LAT housekeeping data– Configuration of the instrument for data acquisition– Calibration of the instrument– Physics event filtering, characterization, and delivery– Communication between the Spacecraft and the LAT– Telemetry and telecommand services– Spacecraft attitude/time management– Thermal control– Core processes and functions: multi-CPU communications, inter-task
communications, software watchdog, etc.• Test software:
– Regression testing of builds– Front-End Simulators (FES)
• Software tools:– CMX– FMX
• Hardware:– Testbed, 1x4 grid, EGSE– FES
15 Feb 2006 ISOC Review - FSW 9
FTE EstimatesFTE Estimates
FSW FTEs per year
0
2
4
6
8
10
12
FY2006 FY2007 FY2008 FY2009 FY2010 FY2011 FY2012
# F
TE
s
FSW group is changing composition over the years as experienced people move on and less experienced people come in. Information must be transferred from one set of people to another, but time needs to be allotted to allow new people to learn.
15 Feb 2006 ISOC Review - FSW 10
FTE JustificationFTE Justification
• Skill set of people necessary for maintaining FSW in the future– Real-time programming, VxWorks– Experience with commissioning and operating a particle physics
detector– C/C++, python, perl, unix/linux– Configuration Management– Ability to work within existing FSW framework– Understanding of trigger and dataflow system
FSW group contains many people with in-depth knowledge about the operation of the T&DF system and the instrument
• To fully utilize members of FSW over the length of the mission:– Re-task code developers to monitoring of instrument
• Trigger and dataflow system• Filter• Background rates
– Contribute to calibrations and defining new instrument configurations
15 Feb 2006 ISOC Review - FSW 11
Summary of staff needsSummary of staff needs
• People (included in previous FTE Estimate)– 1.0 FTE: SW developer/physicist
• Now: Support I&T and system test• Launch: Resolve instrument anomalies (quickly)• Future: Retain core FSW knowledge
– Need overlap between the incoming and outgoing staff
– 1.0 FTE: SW developer• Maintain existing software tools• Develop new tools that help all ISOC groups interface to
LAT configuration information• Act as “Configuration Manager” for FSW and HW
– 0.5 FTE: Lab Technician• Custodian to dataflow lab • Maintenance of hardware infrastructure
15 Feb 2006 ISOC Review - FSW 12
Existing Equipment/Lab SpaceExisting Equipment/Lab Space
TestbedFESRack
Pwr Rack
Uber Test
Stand
Multi-crateTest
Stand
Bench
Dalek
GASU Test
Stand
Bldg 84
Room B101
15 Feb 2006 ISOC Review - FSW 13
LAT TestbedLAT Testbed
• Provides a full Trigger and Dataflow system with flight-like interfaces and hardware
• Front-end Simulator (FES) ingests Monte Carlo data– Dataflow integrity and throughput– Filter
15 Feb 2006 ISOC Review - FSW 14
Hardware InfrastructureHardware Infrastructure
• Existing hardware:– LAT Testbed and FES (Front End Simulator)– VSC (Virtual Spacecraft) – SIIS (Spacecraft Simulator)– Test stands (trigger and dataflow system)– EGSE and flight spares in Building 33
• LAT Testbed and test stand usage– Commissioning of LAT Dataflow System– Code development/debugging by FSW, FSW test, I&T, ISOC– Testing flight software functionality at the system level– Running operational scenarios– Regression testing of new FSW builds
15 Feb 2006 ISOC Review - FSW 15
Incoming EquipmentIncoming Equipment
• ISOC FSW will maintain the existing equipment• ISOC FSW will inherit flight spares and all useful EGSE from I&T
– 1x4 grid• 2 Trackers (flight spare + non-flight)• 4 CAL units (3 flight spares + 1 EM)• 4 flight TEMs• GASU and other support electronics
– LAT Power Rack/LAT Control Rack– Mobile Computing Racks– SIIS (Spacecraft to Instrument Interface Simulator)– Mini-LAT with muon telescope– Miscellaneous EGSE
• GASUs• PDUs• VME crates• Spare parts and miscellaneous
15 Feb 2006 ISOC Review - FSW 16
New and Improved Dataflow LabNew and Improved Dataflow Lab
TestbedFESRack
Power FeedRack
VSC Rack
Uber teststand
Multi-crate
teststand
Test Stand
DebugBench
MCR MCR
1x4 grid
Mini-LAT
Power Rack
VSC Rack
SIIS
Power Rack
VSC Rack
TPG
Table
Table
TableTable
Table
Dalek
Table
B101 B105
B136
Existing Lab Space
Existing Equipment
New Lab Space
New Equipment
B138
15 Feb 2006 ISOC Review - FSW 17
Infrastructure Changes to B101Infrastructure Changes to B101
• To accommodate the flight units, install– Install Nitrogen (keep 1x4 grid clean and dry)– Install Oxygen sensor for safety– Maintain temperature at 22C ± 5C – Maintain humidity at 30% - 50%– Monitor and archive humidity and temperature
• Changes to existing lab space– Install double doors to new lab space in B105
• Additions to existing lab space– Additional air conditioning– Additional power feeds and outlets– Bus bars installed (facility ground)– UPS providing 10 min @ 7500W– Storage solution for spares
15 Feb 2006 ISOC Review - FSW 18
New Lab SpaceNew Lab Space
MCR MCR
1x4 grid
Power Rack
VSC Rack
SIIS
Power Rack
VSC Rack
TPG
Table
Table
Table
• B105/B136 – Today: cubicle/office area– Future: lab space and
workstations to interface to hardware test stands in B101
• B138 – Today: storage area
(not GLAST)– Future: GLAST storage
• Both rooms brought up to the same standard as B101– Tile– Paint– Air conditioning– Power feeds– ~10 Ethernet drops
B105
B136
B138
15 Feb 2006 ISOC Review - FSW 19
Other Resource NeedsOther Resource Needs
• Things– Software licenses (i.e., VxWorks)– Software– Computers (Suns, laptops)– DSL for core staff (on call)– Travel
• GSFC• NRL, I&T support• NRL staff
– Conferences, meetings• Collaboration support
– Filter development– Parameters for optimizing instrument performance
• SLAC support– Networking– Windows environment– Unix/linux environment
• ISOC support– Configuration Management– Account management/computer maintenance
15 Feb 2006 ISOC Review - FSW 20
SummarySummary
• FSW activities will evolve over time from primarily code development to operations and instrument monitoring
• Resources needs– 3 FTEs to maintain FSW activity level through FY2009 and
beyond– Upgraded/additional lab space – Collaboration support for filter development– SLAC support for networking
• Concerns– Retaining knowledge of core FSW for length of mission– Maintenance of VxWorks license (by SLAC or FSW?)