Sandia National LabsSAR ATR Hour

for the SLAAC Fall ‘99 Retreat

Intro/Module Performance Goals: Brian BrayFOA: Scott HemmertSLD: Steve CragoCDI: Mike WirthlinWrap-up (Good/Bad/Future): Brian Bray

Sandia National Labs

Current Challenge Problem Modules• FOA (Focus of Attention)

– adaptive rank order quantization and multi-level morphology– quad uP:~2 Mpixels/sec ACS goal: ~10 Mpixels/sec*

• SLD (Second Level Detection)– for in-the-clear scenarios– adaptive attenuation estimation with binary template matching– quad uP: ~16000 templates/sec ACS goal: ~80000 templates/sec

• CDI (Contamination Distribution Indexer)– for camouflage, concealment and deception (CC&D) scenarios– epsilon-contaminated mixtures model (~10X more compute intensive than

SLD)– initial ACS goal is just the 2X not the 1X templates (90% of compute)– quad uP: ~1600 templates/sec Inital ACS goal: ~16000 templates/sec

End ACS goal: (2X and 1X templates at ~80000 templates/sec)

microprocessor = PowerPC 750 @ 400Mhz*Mpixel in downsampled space

Sandia National Labs

The Good

• ACS CDI Performance

• JHDL

• BYU students and faculty

• Virtex parts– on-chip memory

– large amounts of logic

Sandia National Labs

The Bad

• We are behind

• Need an embedded Virtex based ACS board

• ACS parts with large penalty for large precision and FP operations

• What is the third generation ACS part?

Sandia National Labs

The Future (As I See It)

• Bigger second generation ACS parts and better tools will come– third generation will not be here in near term

• what will it be??? – Virtex-like with RISC core, I$, D$ and DRAM interface?– Will it be an improvement to compute tasks or just system on a chip applications

• PCI accelerator cards with multiprocessor workstation based groundstations– will reduce the need for embedded VME hardware

– Annapolis Microsystems PCI• WildSTAR is a significant improvement over WildForce

– SLAAC PCI?• When compared to the WildSTAR, what design features can a SLAAC PCI Virtex board

provide to overcome not being COTS and available now?

• Daughtercards for embedded VME multicomputers– CSPI, Mercury

• many Mercury only shops for embedded VME multicomputers

Sandia National Labs

Mercury Compatible ACS Node

Race SeriesPowerPCCN ASIC

SDRAM

PowerPC L2$

Race SeriesPowerPCCN ASIC

SDRAM

PowerPC L2$

Race SeriesPowerPCCN ASIC

SDRAM

Virtex SRAM

Virtex Virtex

SRAMS

RA

M

SR

AM

SR

AM

SR

AM

CLK Gen

Boot EEPROM

64

64

6464 6464

Mercury’s PPC Daughtercard ACS DaughtercardCan SLAAC get accessto these chips andenough info to write SW drivers?

Can this bus be runat a lower clock ratethan 83.3Mhz?

How do others goabout designingMercury compatibledaughtercards?