{"id":{"repo_id":"mit","oai_identifier":"oai:dspace.mit.edu:1721.1/147902"},"canonical_url":"https://search.dev.ndltd.org/etd/mit/oai:dspace.mit.edu:1721.1/147902","repository":{"repo_id":"mit","name":"MIT","base_url":"https://dspace.mit.edu/oai/request"},"display":{"title":"Parallel and Distributed Just-in-Time Shell Script Compilation","abstract":"In the past several years, the shell has received renewed interest from the research community. This thesis describes the work I did to advance the performance and capabilities of the current state-of-the-art shell-script parallelization systems. In the first half of this thesis, I focus on my contributions to PaSh-JIT, a JIT compiler for parallelizing POSIX shell scripts. In the second half, I explore the design and implementation of Distributed-PaSh, a shell that can utilize distributed computing resources and easily interface with distributed storage systems to efficiently execute data-processing pipelines. Distributed-PaSh analyzes the dataflow graph of a given script to create highly parallel data pipelines and execute those pipelines in a distributed cluster while giving special attention to data locality and movement. Distributed-PaSh achieves higher performance than single machine sequential and parallel shells.","abstract_html":"In the past several years, the shell has received renewed interest from the research community. This thesis describes the work I did to advance the performance and capabilities of the current state-of-the-art shell-script parallelization systems. In the first half of this thesis, I focus on my contributions to PaSh-JIT, a JIT compiler for parallelizing POSIX shell scripts. In the second half, I explore the design and implementation of Distributed-PaSh, a shell that can utilize distributed computing resources and easily interface with distributed storage systems to efficiently execute data-processing pipelines. 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