mirror of https://github.com/BOINC/boinc.git
26 lines
750 B
PHP
26 lines
750 B
PHP
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The work_req element of a scheduler RPC request
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is in units of 'normalized CPU seconds'.
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A request of X normalized CPU seconds
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is asking for enough work to keep one CPU
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busy for X seconds of wall-clock time.
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In deciding how much work this is,
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the scheduler must take into account:
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1) the project's resource share fraction;
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2) the host's on-fraction
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3) the host's active-fraction.
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For example, suppose a host has a 1 GFLOP/sec CPU,
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the project's resource share fraction is 0.5,
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the host's on-fraction is 0.8
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and the host's active-fraction is 0.9.
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Then the expected processing rate per CPU is
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1*0.5*0.8*0.9 GFLOP/sec = 0.36 GFLOP/sec
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Suppose the host requests 1000 seconds of work.
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Then the scheduler should send it at least 360 GFLOPs of work.
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