Towards Very Large Scale Digital Library Building in Greenstone Using Parallel Processing
- Cite this paper as:
- Thompson J., Bainbridge D., Suleman H. (2011) Towards Very Large Scale Digital Library Building in Greenstone Using Parallel Processing. In: Xing C., Crestani F., Rauber A. (eds) Digital Libraries: For Cultural Heritage, Knowledge Dissemination, and Future Creation. ICADL 2011. Lecture Notes in Computer Science, vol 7008. Springer, Berlin, Heidelberg
As very large digital library collections become more commonplace, software tools must adapt appropriately. This paper reports on an evolution of the Greenstone Digital Library software to support parallel processing during the collection building phase. A series of experiments were conducted to first establish a basic speed-up factor, and then deconstruct the parallelisation process to understand the execution profile of the application. Several bottlenecks were identified and resolved to further improve the performance. The adaptation of Greenstone confirms that the build phase is indeed a suitable candidate for parallelisation; and suggests that parallelisation of processing is a new avenue for exploration in emerging digital library architectures.
KeywordsGreenstone VLDL Parallel Processing Open MPI
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