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Title: Optimizing Tpetra%3CU%2B2019%3Es sparse matrix-matrix multiplication routine.

Technical Report ·
DOI:https://doi.org/10.2172/1029781· OSTI ID:1029781

Over the course of the last year, a sparse matrix-matrix multiplication routine has been developed for the Tpetra package. This routine is based on the same algorithm that is used in EpetraExt with heavy modifications. Since it achieved a working state, several major optimizations have been made in an effort to speed up the routine. This report will discuss the optimizations made to the routine, its current state, and where future work needs to be done.

Research Organization:
Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC04-94AL85000
OSTI ID:
1029781
Report Number(s):
SAND2011-6036; TRN: US201201%%191
Country of Publication:
United States
Language:
English