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    Crystal Scheme A Language for Massively Parallel Machines

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    Massively parallel computers are built out of thousands conventional but powerful processors with independent memories. Very simple topologies mainly based on physical neighbourhood link these processors. The paper discusses extensions to the Scheme language in order to master such machines. Allowing arguments of functions to be concurrently evaluated introduces parallelism. Migration across the different processors is achieved through a remote evaluation mechanism. First-class continuations offering some semantical problems with respect to concurrency, we propose a neat semantics for them and then show how to build, in the language itself, advanced concurrent constructs such as futures. Eventually we comment some simulations, with various topologies and migration policies, which enables to appreciate our previous linguistical choices and confirms the viability of the model. Massively parallel computers [Hewitt 80, Dally et al. 89, Germain et al. 90] are large ensembles comprising thou...

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    Title : Crystal Scheme A Language for Massively Parallel Machines
    Abstract : Massively parallel computers are built out of thousands conventional but powerful processors with independent memories. Very simple topologies mainly based on physical neighbourhood link these processors. The paper discusses extensions to the Scheme language in order to master such machines. Allowing arguments of functions to be concurrently evaluated introduces parallelism. Migration across the different processors is achieved through a remote evaluation mechanism. First-class continuations offering some semantical problems with respect to concurrency, we propose a neat semantics for them and then show how to build, in the language itself, advanced concurrent constructs such as futures. Eventually we comment some simulations, with various topologies and migration policies, which enables to appreciate our previous linguistical choices and confirms the viability of the model. Massively parallel computers [Hewitt 80, Dally et al. 89, Germain et al. 90] are large ensembles comprising thou...
    Subject : unspecified
    Area : Computer Science
    Language : English
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    Url : http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.40.6613&rep=rep1&type=pdf
    Doi : 10.1.1.40.6613

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