Marshall Schor created UIMA-5893:
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Summary: Experiment to schedule multiple threads together at
barrier points in pipeline
Key: UIMA-5893
URL: https://issues.apache.org/jira/browse/UIMA-5893
Project: UIMA
Issue Type: Brainstorming
Components: Core Java Framework
Reporter: Marshall Schor
Assignee: Marshall Schor
This Jira covers experimental, disabled code done as an experiment to explore
performance implications of putting in barriers in a UIMA pipeline, so that
multiple threads would wait at the barrier until a bunch of them had arrived,
and then they would be released together. The intuition motivating this was
that in highly multi-threaded machines, running the same annotators together,
might improve locality-of-reference for l1/l2/l3 memory caches, potentially
speeding up execution.
After one set of experiments which failed to show improvement (for possibly
many reasons, not yet investigated), this code is disabled, but kept in the
project in case of future interest.
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