Effect of inverted index partitioning schemes on performance of query processing in parallel text retrieval systems
Author
Cambazoğlu, B. Barla
Çatal, A.
Aykanat, Cevdet
Date
2006-11Source Title
21th International Symposium on Computer and Information Sciences – ISCIS 2006
Print ISSN
0302-9743
Publisher
Springer
Pages
717 - 725
Language
English
Type
Conference PaperItem Usage Stats
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Abstract
Shared-nothing, parallel text retrieval systems require an inverted index, representing a document collection, to be partitioned among a number of processors. In general, the index can be partitioned based on either the terms or documents in the collection, and the way the partitioning is done greatly affects the query processing performance of the parallel system. In this work, we investigate the effect of these two index partitioning schemes on query processing. We conduct experiments on a 32-node PC cluster, considering the case where index is completely stored in disk. Performance results are reported for a large (30 GB) document collection using an MPI-based parallel query processing implementation. © Springer-Verlag Berlin Heidelberg 2006.
Keywords
Data processingInformation retrieval
Magnetic disk storage
Parallel processing systems
Program processors
Query languages
Text processing
Document collection
Index partitioning schemes
Inverted index partitioning
Parallel text retrieval systems
Indexing (of information)