2nd Generation AO Real Time Computer

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2nd Generation AO Real Time Computer
OPTICON AO-JRA1 Kick-Off
Adaptive Optics Platform
Top-Level Requirement Status and Plans

• Enrico Fedrigo, Rob Donaldson

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Goal

• The high number of actuators as well as the very
  high bandwidth (1-1.5 kHz) required by XAO and
  high order MCAO systems lead to the redesign of a
  scalable and reconfigurable AO real time
  Platform. Extensive use of off-the-shelf computer
  and I/O modules will be favoured for this
  development to ensure very high maintainability
  and flexibility (different type of AO systems).
  The major difficulty will be to make the best use
  of the multiprocessing capability and to optimise
  a very high I/O data rate. The JRP will conduct
  the preliminary design, prototyping and final
  design of the whole AO real time platform
  including the DM drive electronics. CCD
  controller interface will also be designed in
  collaboration with the detector JRP.
• source OPTICON JRA1 Proposal

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AO Platform

• Achieve the goal through standardization.
• Exploit commonality of current AO systems (more
  of 80 of the
• code does the same thing) to build an
  INFRASTRUCTURE.
• Use the power of standards
• Improve maintainability
• Foster innovation
• Optimize resources

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AO Platform Guidelines
Power PC G4/G5 CPU Altivec DSP Engine PMC-PCI-X
internal bus VME64 main external
bus Multiprocessor Boards

• Common Hardware
• Select COTS that can achieve all the objectives
  of the AO Platform through scalability
  (modularity)
• Reduce hardware development to the minimum
  (ideally to zero)
• Guarantee sustainable evolution (follow the
  market)
• Common Software
• Create the infrastructure (80 of the code) with
  the form of a toolkit
• Produce drivers and objects to control all the
  certified hardware
• Maintain and evolve the framework
• Define Interfaces
• Define all input/output interfaces in all the
  required varieties (sensors/actuators)
• Define and support the hardware that implements
  them
• Reuse and apply experience in
• building VLT standards
• operating and maintaining instruments

VxWorks HP-UX Development Environment G compiler
StarFabric/RapidIO FibreChannel Parallel Digital
I/O
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AO-Platform Expansions
FPGA

• Standard reference design exists (WindRiver)
• Standard COTS hardware available
• Standard drivers (WindRiver)
• Fit into the AO Platform philosophy
• Applications to well-known processes
• Input machinery (pixel de-scrambling, flat
  fielding )
• Statistical machinery (Modal decomposition, PSD,
  )

See Durham Presentation
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AO Platform

• Architecture and Scalability

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Matrix structure

• The AO platform serves several projects but does
  not end with them

Input
Output
Prototypes
Implementation
Platform
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Specifications

• Inputs the AO-RTC Platform grows around real
  projects

Planet Finder
MUSE
AO RTC Platform
Others?
HAWK-I
OWL
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Required Inputs for WP3.1

• Main Specifications
• Type of sensor, of sub-apertures,
  pixel/sub-aperture
• Detector specs CCD pixel size, frame rate,
  read-out time, bits/pixel, of outputs,
  windowing
• Deformable mirror specs of actuators
• System frequency
• Acquisition algorithm (pixel acquisition,
  pre-processing and slope computation)
• Control Algorithm
• Calibration functions
• Additional Specifications
• Diagnostic/Debug/Development functions
• Simulation at all levels. Simulation of failures.
• User-accessible functions (commands)
• Real-time display, real time data recording
• Test functions, real time input simulation
• Offloading and other specific functions

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Specifications Planet Finder

• Example only not finalized yet
• Input
• Detector 256x256 array
• Frame rate 2.0KHz
• Case 1
• 1 Shack-Hartmann
• Geometry 44x44 sub-apertures (1500 active, 3000
  slopes)
• Sub-aperture 4x4 pixel area
• Case 2
• 1 Pyramid
• Geometry 44x44 sub-apertures (1500 active, 3000
  slopes)
• Sub-aperture 2x2 pixel area
• Output
• Single conjugated system 1 Deformable Mirror
• Number of total DM Actuators 1300
• Control
• Real-Time Computer update rate 2.0KHz

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Specifications MUSE

• Input
• 4 Shack-Hartmann wavefront sensors
• Geometry 32x32 sub-apertures
• Detector 256x256 array
• Sub-aperture 6x6 pixel area
• Frame rate 700 Hz (goal 1.0KHz)
• Add-on quad-cell tip/tilt sensor
• Add-on IR tip/tilt sensor embedded into a larger
  IR detector
• Output
• One Deformable mirror
• Case 1 Adaptive secondary with 1300 actuators
  (TT included)
• Case 2 Piezoelectric deformable mirror (33x33
  actuators, 855 active) separate tip-tilt mirror
• Control
• Real-Time Computer update rate 700 Hz (goal 1.0
  KHz)

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Concepts for Planet Finder
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Concept for MUSE
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AO Platform Deliverables

• Hardware Compatibility List
• Certified CPU boards, I/O add-ons, auxiliary
  board
• Software toolkit
• Complete framework with all drivers and object to
  manage devices
• Working framework with acquisition, control,
  calibration and diagnostic modules
• Mathematical libraries optimized for AltiVec and
  objects to create the control algorithm
• Complete Documentation
• Concentrate on the glue the control algorithm

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Durham Deliverables

• FPGA module integrated into the platform
• Hardware specifications for compatible modules
• Integrated development environment
• Integrated run-time environment
• Modules to support AO-Platform communication
  protocols (RapidIO / Starfabric / Parallel
  Digital IO)
• Application modules
• Software objects integrated into the Platform
  framework

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Schedule
M1
M2
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Resources

• JRA1 Resources for WP 3.1
• Coordination
• Internal checkpoints and documentation review
• Regular meetings every 6 months
• Common hardware and development environment

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Status

• Roadmap verified with industry
• Partners (so far) Dy4 Systems, Mercury
  Computers, Transtech
• Main parameters defined (specifications)
• First cut conceptual design ready
• First generation hardware identified
• 3FTE from EC candidate identified
• Issues
• Board-to-board communication latency
• First prototype to tackle this issue

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Technologies
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Technologies CPUs
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Technologies Boards
Today
Tomorrow
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Technologies Interconnection
Motorola
Intel
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Thats all folks!