The COBRA-ABS High-Level Synthesis System for Multi-FPGA Custom Computing Machines

A. A. Duncan, David Cyril Hendry

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)


This paper describes the column oriented butted regular architecture-algorithmic behavioral synthesis (COBRA-ABS) high-level synthesis tool which has been designed to synthesize DSP algorithms, specified in C, onto multi-field programmable gate array (FFGA) custom computing machines (FCCMs). COBRA-ABS performs synthesis using a new simulated annealing-based methodology, which maps the specified behavior into a four-dimensional (4-D) space and then optimizes the implied architecture. COBRA-ABS synthesizes custom very long instruction word (VLIW) style architectures partitioned across the FPGAs of the FCCM and has been used to compile C algorithms down to FPGA configuration bit-streams, This paper describes the tool and synthesis concepts and presents simulation results from a number of synthesized fast Fourier transform (FFT) related algorithms.

Original languageEnglish
Pages (from-to)218-223
Number of pages5
JournalIEEE Transactions on Very Large Scale Integration Systems
Issue number1
Publication statusPublished - Feb 2001


  • allocation
  • compiler
  • custom computing
  • DSP synthesis
  • FCCM
  • field programmable gate array (FPGA) synthesis
  • high-level synthesis
  • partitioning
  • scheduling
  • simulated annealing
  • VLIW


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