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https://issues.apache.org/jira/browse/GIRAPH-1165?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16243070#comment-16243070
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ASF GitHub Bot commented on GIRAPH-1165:
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GitHub user majakabiljo opened a pull request:
https://github.com/apache/giraph/pull/54
GIRAPH-1165: Skip iterating through vertices in supersteps with just …
…global logic
Summary: Some supersteps don't do anything with vertices but just do global
worker or master computation or perform aggregation. Not iterating through
vertices in these cases can save time.
Test Plan: Ran some jobs with supersteps which only do global computation
and verified computation is skipped and we save a few seconds per these
supersteps
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/majakabiljo/giraph no_op
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/giraph/pull/54.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #54
----
commit 0b0d31e74110d2d41a17076907ba602531a34f16
Author: Maja Kabiljo <majakabi...@fb.com>
Date: 2017-11-07T23:04:42Z
GIRAPH-1165: Skip iterating through vertices in supersteps with just global
logic
Summary: Some supersteps don't do anything with vertices but just do global
worker or master computation or perform aggregation. Not iterating through
vertices in these cases can save time.
Test Plan: Ran some jobs with supersteps which only do global computation
and verified computation is skipped and we save a few seconds per these
supersteps
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> Skip iterating through vertices in supersteps with just global logic
> --------------------------------------------------------------------
>
> Key: GIRAPH-1165
> URL: https://issues.apache.org/jira/browse/GIRAPH-1165
> Project: Giraph
> Issue Type: Improvement
> Reporter: Maja Kabiljo
> Assignee: Maja Kabiljo
> Priority: Minor
>
> Some supersteps don't do anything with vertices but just do global worker or
> master computation or perform aggregation. Not iterating through vertices in
> these cases can save time (some time is still spent in zookeeper barrier but
> that can be addressed separately).
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