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Various Task Manage Speedups #373

Merged
merged 10 commits into from
Mar 25, 2020
Merged

Various Task Manage Speedups #373

merged 10 commits into from
Mar 25, 2020

Commits on Mar 18, 2020

  1. Pipeline: do not add children of tasks already added

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  2. Pipeline: solve stack overflow in addChildren

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  3. Task: find cycles in a collection of tasks all at once. 

    When a task returns a list of tasks via getTasks, we currently check for
cyclical dependencies on each task independently.  If they are all
connected in the DAG, then this is really slow!  This avoids that
by finding the strongly connected components jointly across the new *to
be added* tasks.
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  4. small performance optimizations on dense dags

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  5. TaskManager: exponential reduction in sleep time if we can do anything, 

    otherwise linear increase
    @nh13
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  6. No need to check for cycles before executing a task, as it was checked 

    when added.
    @nh13
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  7. Warn if a single step in execution takes longer than 30 seconds

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    nh13 committed Mar 18, 2020
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  8. Optimize GraphNode 

    also change a info to a debug in TaskManager
    @nh13
    nh13 committed Mar 18, 2020
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  9. update based on review

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    nh13 committed Mar 18, 2020
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Commits on Mar 25, 2020

  1. ResourceSet bug when subsetting resources and some performance optimi… 

    …zations (#374)

* ResourceSet bug fix

If the minimum to subset to is fractional, with a different fractional
value than the maximum, it could be missed.

Also added a small performance optimization.

* Task Manager optimizations

* A few NaiveScheduler simplifications
    @nh13
    nh13 authored Mar 25, 2020
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