Symmetric Random Butterfly Transform (SRBT) Based Preconditioner

Research output: NRELPresentation


Summary of work using Symmetric Random Butterfly Transformation (SRBT) in conjunction with Incomplete LDL T factorization as a preconditioner for FGMRES solver as a way of solving linear systems arising from interior point methods applied to power system problems. These linear systems have proven difficult to parallelize and this represents a possible route forward.
Original languageAmerican English
Number of pages12
StatePublished - 2023

Publication series

NamePresented at the Exascale Computing Project (ECP) Community Birds-of-a-Feather (BOF) Days, 14-16 February 2023

NREL Publication Number

  • NREL/PR-2C00-85309


  • interior point optimization
  • numerical linear algebra
  • optimal power flow


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