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DTSTAMP:20260422T000713Z
LOCATION:710
DTSTART;TZID=America/Denver:20231113T115000
DTEND;TZID=America/Denver:20231113T121000
UID:submissions.supercomputing.org_SC23_sess445_ws_scalah109@linklings.com
SUMMARY:Parallel Symbolic Cholesky Factorization
DESCRIPTION:Tobias Ribizel (Karlsruhe Institute of Technology (KIT)) and H
 artwig Anzt (University of Tennessee, Innovative Computing Laboratory (ICL
 ); Karlsruhe Institute of Technology (KIT))\n\nWe present a hybrid sequent
 ial/parallel symbolic Cholesky factorization algorithm that computes the s
 parsity pattern of the symbolic factors in parallel. We evaluate the perfo
 rmance on a large subset of the SuiteSparse matrix collection and multicor
 e CPUs as well as flagship GPUs by AMD and NVIDIA, achieving speedups of a
 n order of magnitude compared to a state-of-the-art sequential symbolic Ch
 olesky factorization.\n\nTag: Algorithms, Heterogeneous Computing, Large S
 cale Systems\n\nRegistration Category: Workshop Reg Pass\n\nSession Chairs
 : Vassil Alexandrov (Hartree Centre, STFC); Jack Dongarra (University of T
 ennessee, Knoxville; Oak Ridge National Laboratory (ORNL)); Christian Enge
 lmann (Oak Ridge National Laboratory (ORNL)); Al Geist (Oak Ridge National
  Laboratory (ORNL)); and Dieter A. Kranzlmueller (Ludwig-Maxmilians-Univer
 sität München, Leibniz Supercomputing Centre (LRZ))\n\n
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