Matches in SemOpenAlex for { <https://semopenalex.org/work/W1598936701> ?p ?o ?g. }
Showing items 1 to 93 of
93
with 100 items per page.
- W1598936701 abstract "The Conjugate Gradient (CG) algorithm is perhaps the best-known iterative technique to solve sparse linear systems that are symmetric and positive definite. In previous work, we investigated the effects of various ordering and partitioning strategies on the performance of CG using different programming paradigms and architectures. This paper makes several extensions to our prior research. First, we present a hybrid(MPI+OpenMP) implementation of the CG algorithm on the IBM SP and show that the hybrid paradigm increases programming complexity with little performance gains compared to a pure MPI implementation. For ill-conditioned linear systems, it is often necessary to use a preconditioning technique. We present MPI results for ILU(0) preconditioned CG (PCG) using the BlockSolve95 library, and show that the initial ordering of the input matrix dramatically affect PCG's performance. Finally, a multithreaded version of the PCG is developed on the Cray (Tera) MTA. Unlike the message-passing version, this implementation did not require the complexities of special orderings or graph dependency analysis. However, only limited scalability was achieved due to the lack of available thread level parallelism." @default.
- W1598936701 created "2016-06-24" @default.
- W1598936701 creator A5006616066 @default.
- W1598936701 creator A5027091310 @default.
- W1598936701 creator A5033402901 @default.
- W1598936701 creator A5057199457 @default.
- W1598936701 date "2000-11-18" @default.
- W1598936701 modified "2023-09-28" @default.
- W1598936701 title "Ordering schemes for sparse matrices using modern programming paradigms" @default.
- W1598936701 hasPublicationYear "2000" @default.
- W1598936701 type Work @default.
- W1598936701 sameAs 1598936701 @default.
- W1598936701 citedByCount "1" @default.
- W1598936701 crossrefType "journal-article" @default.
- W1598936701 hasAuthorship W1598936701A5006616066 @default.
- W1598936701 hasAuthorship W1598936701A5027091310 @default.
- W1598936701 hasAuthorship W1598936701A5033402901 @default.
- W1598936701 hasAuthorship W1598936701A5057199457 @default.
- W1598936701 hasConcept C111919701 @default.
- W1598936701 hasConcept C11413529 @default.
- W1598936701 hasConcept C121332964 @default.
- W1598936701 hasConcept C123213974 @default.
- W1598936701 hasConcept C132525143 @default.
- W1598936701 hasConcept C138101251 @default.
- W1598936701 hasConcept C139352143 @default.
- W1598936701 hasConcept C158693339 @default.
- W1598936701 hasConcept C16311509 @default.
- W1598936701 hasConcept C163716315 @default.
- W1598936701 hasConcept C173608175 @default.
- W1598936701 hasConcept C199360897 @default.
- W1598936701 hasConcept C2524010 @default.
- W1598936701 hasConcept C2775904623 @default.
- W1598936701 hasConcept C33923547 @default.
- W1598936701 hasConcept C41008148 @default.
- W1598936701 hasConcept C42355184 @default.
- W1598936701 hasConcept C48044578 @default.
- W1598936701 hasConcept C56372850 @default.
- W1598936701 hasConcept C62520636 @default.
- W1598936701 hasConcept C80444323 @default.
- W1598936701 hasConcept C81184566 @default.
- W1598936701 hasConcept C83283714 @default.
- W1598936701 hasConcept C854659 @default.
- W1598936701 hasConceptScore W1598936701C111919701 @default.
- W1598936701 hasConceptScore W1598936701C11413529 @default.
- W1598936701 hasConceptScore W1598936701C121332964 @default.
- W1598936701 hasConceptScore W1598936701C123213974 @default.
- W1598936701 hasConceptScore W1598936701C132525143 @default.
- W1598936701 hasConceptScore W1598936701C138101251 @default.
- W1598936701 hasConceptScore W1598936701C139352143 @default.
- W1598936701 hasConceptScore W1598936701C158693339 @default.
- W1598936701 hasConceptScore W1598936701C16311509 @default.
- W1598936701 hasConceptScore W1598936701C163716315 @default.
- W1598936701 hasConceptScore W1598936701C173608175 @default.
- W1598936701 hasConceptScore W1598936701C199360897 @default.
- W1598936701 hasConceptScore W1598936701C2524010 @default.
- W1598936701 hasConceptScore W1598936701C2775904623 @default.
- W1598936701 hasConceptScore W1598936701C33923547 @default.
- W1598936701 hasConceptScore W1598936701C41008148 @default.
- W1598936701 hasConceptScore W1598936701C42355184 @default.
- W1598936701 hasConceptScore W1598936701C48044578 @default.
- W1598936701 hasConceptScore W1598936701C56372850 @default.
- W1598936701 hasConceptScore W1598936701C62520636 @default.
- W1598936701 hasConceptScore W1598936701C80444323 @default.
- W1598936701 hasConceptScore W1598936701C81184566 @default.
- W1598936701 hasConceptScore W1598936701C83283714 @default.
- W1598936701 hasConceptScore W1598936701C854659 @default.
- W1598936701 hasLocation W15989367011 @default.
- W1598936701 hasOpenAccess W1598936701 @default.
- W1598936701 hasPrimaryLocation W15989367011 @default.
- W1598936701 hasRelatedWork W1490629501 @default.
- W1598936701 hasRelatedWork W1523430416 @default.
- W1598936701 hasRelatedWork W1588430211 @default.
- W1598936701 hasRelatedWork W1961164518 @default.
- W1598936701 hasRelatedWork W1971343078 @default.
- W1598936701 hasRelatedWork W2005061189 @default.
- W1598936701 hasRelatedWork W2009196736 @default.
- W1598936701 hasRelatedWork W2023924583 @default.
- W1598936701 hasRelatedWork W2100936239 @default.
- W1598936701 hasRelatedWork W2120610962 @default.
- W1598936701 hasRelatedWork W2170111021 @default.
- W1598936701 hasRelatedWork W2170802276 @default.
- W1598936701 hasRelatedWork W2604152328 @default.
- W1598936701 hasRelatedWork W2767655920 @default.
- W1598936701 hasRelatedWork W2790691034 @default.
- W1598936701 hasRelatedWork W2965979058 @default.
- W1598936701 hasRelatedWork W3051669108 @default.
- W1598936701 hasRelatedWork W3119799675 @default.
- W1598936701 hasRelatedWork W3160040224 @default.
- W1598936701 hasRelatedWork W948471287 @default.
- W1598936701 isParatext "false" @default.
- W1598936701 isRetracted "false" @default.
- W1598936701 magId "1598936701" @default.
- W1598936701 workType "article" @default.