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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
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"http://www.w3.org/TR/1999/REC-html401-19991224/loose.dtd">
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<html lang="en">
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<head>
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<title>Compute Model: Handling Very Long Computations</title>
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<meta name="generator" content="BBEdit 6.1.2">
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</head>
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<body>
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<h2>Compute Model: Handling Very Long Computations</h2>
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<title>Compute Model: handling very long computations</title>
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<h2>Compute model: handling very long computations</h2>
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<p>
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Some applications have very long (multi-month) computations that
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generate large amounts of local state, and therefore are most
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efficiently done on a single host.
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</p>
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Some applications have very long (multi-month) computations
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that generate large amounts of local state,
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and therefore are most efficiently done on a single host.
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<p>
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To accommodate such applications, BOINC allows workunits and results
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to be linked together into <b>sequences</b>. Each workunit and result
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may have a predecessor and a successor.
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</p>
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To accommodate such applications, BOINC allows workunits and results
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to be linked together into <b>sequences</b>.
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Each workunit and result may have a predecessor and a successor.
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<p>
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If a result A has a predecessor B, the scheduling server will
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dispatch A only to the host that has handled (or is currently handling)
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B. If result A times out, then the scheduling server will dispatch B to
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any eligible host.
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</p>
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</body>
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</html>
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If a result A has a predecessor B,
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the scheduling server will dispatch A only
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to the host that has handled (or is currently handling) B.
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If result A times out,
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then the scheduling server will dispatch B to any eligible host.
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