A Systolic Architecture for Fast Dense Matrix Inversion

  • Authors:
  • A. El-Amawy

  • Affiliations:
  • Louisiana State Univ., Baton Rouge

  • Venue:
  • IEEE Transactions on Computers
  • Year:
  • 1989

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Abstract

An array that inverts an n*n dense matrix in 5n-1 time units, including I/O time, is presented. The inversion algorithm consists of three phases and assumes that Gaussian elimination without pivoting can be applied. The array, which consists of 2n/sup 2/-n simple processing elements, implements and overlaps the execution of all three phases without any need for intermediate I/O or reconfiguration. An efficient data-steering technique which is well suited for feedback recurrences is utilized.