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DTSTART:19700308T020000
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BEGIN:VEVENT
DTSTAMP:20210402T160551Z
LOCATION:Track 8
DTSTART;TZID=America/New_York:20201111T153500
DTEND;TZID=America/New_York:20201111T154000
UID:submissions.supercomputing.org_SC20_sess198_ws_whpc102@linklings.com
SUMMARY:STRUMPACK - High-Performance Scalable Software Library Based on Lo
 w-Rank Approximations
DESCRIPTION:Workshop\n\nSTRUMPACK - High-Performance Scalable Software Lib
 rary Based on Low-Rank Approximations\n\nClaus\n\nDuring this lightning ta
 lk, I am excited to share my HPC work on the high-performance scalable sof
 tware library STRUMPACK. This open-source software, developed by researche
 rs at Lawrence Berkeley National Laboratory, leverages hierarchical and no
 n-hierarchical matrices, using low-rank approximations, to get low complex
 ity solvers and efficient preconditioners for large sparse systems. The be
 nefit of this software is that it is effective for solving a variety of di
 scretized partial differential equations. The software package provides a 
 parallel and fully algebraic preconditioner based on an approximate sparse
  factorization using rankstructured matrix compression. \n\nMy work is bas
 ed on improving the package even further by expanding the efficiency to a 
 variety of applications. We recently integrated the so-called Hierarchical
  Off-Diagonal Butterfly compression method to compress some of the larger 
 matrix sub-blocks of the system.  Block low-rank (BLR) is another matrix f
 ormat that has been useful for the compression of sub-blocks for a variety
  of large sparse systems. The BLR compression method is especially efficie
 nt for medium-sized matrix sub-blocks.  Therefore, we are currently workin
 g on an implementation to combine both methods, Hierarchical  Off-Diagonal
  compression for large sub-blocks and BLR compression for medium-sized sub
 -block. The compression of small sub-blocks doesn’t pay off.  The STRUMPAC
 K software is constantly tested on several supercomputers to benefit a var
 iety of users with access to different resources.\n\nTag: Education, Train
 ing and Outreach, Professional Development, Workforce Development\n\nRegis
 tration Category: Workshop Reg Pass
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