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RECONFIGURABLE MULTI-PRECISION INTEGER DOT-PRODUCT HARDWARE ACCELERATOR FOR MACHINE-LEARNING APPLICATIONS

  • US 20190042252A1
  • Filed: 09/29/2018
  • Published: 02/07/2019
  • Est. Priority Date: 09/29/2018
  • Status: Active Grant
First Claim
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1. A configurable integrated circuit to compute vector dot products between a first N-bit vector and a second N-bit vector in a plurality of precision modes, the circuit comprising:

  • M slices, each slice to calculate the vector dot products between a corresponding segment of the first and the second N-bit vectors, each slice to output a plurality of intermediary multiplier results for a first precision mode;

    a plurality of adder trees to sum up the plurality of intermediate multiplier results from the M slices, each of the plurality of adder trees to produce a respective adder out result; and

    an accumulator to merge the adder out result from a first adder tree with the adder out result from a second adder tree to produce a vector dot product of the first and the second N-bit vector for a second precision mode, wherein the second precision mode is of higher precision than the first precision mode.

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