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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (GIRAPH-192) Move aggregators to a separate sub-package
Date Thu, 21 Jun 2012 16:27:45 GMT

    [ https://issues.apache.org/jira/browse/GIRAPH-192?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13398541#comment-13398541
] 

Hudson commented on GIRAPH-192:
-------------------------------

Integrated in Giraph-trunk-Commit #120 (See [https://builds.apache.org/job/Giraph-trunk-Commit/120/])
    GIRAPH-192. Move aggregators to a separate sub-package. Contributed by Jan van der Lugt.
(Revision 1352585)

     Result = SUCCESS
jghoman : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1352585
Files : 
* /giraph/trunk/CHANGELOG
* /giraph/trunk/src/main/java/org/apache/giraph/aggregators
* /giraph/trunk/src/main/java/org/apache/giraph/aggregators/BooleanAndAggregator.java
* /giraph/trunk/src/main/java/org/apache/giraph/aggregators/BooleanOrAggregator.java
* /giraph/trunk/src/main/java/org/apache/giraph/aggregators/BooleanOverwriteAggregator.java
* /giraph/trunk/src/main/java/org/apache/giraph/aggregators/DoubleAverageAggregator.java
* /giraph/trunk/src/main/java/org/apache/giraph/aggregators/DoubleMaxAggregator.java
* /giraph/trunk/src/main/java/org/apache/giraph/aggregators/DoubleMinAggregator.java
* /giraph/trunk/src/main/java/org/apache/giraph/aggregators/DoubleOverwriteAggregator.java
* /giraph/trunk/src/main/java/org/apache/giraph/aggregators/DoubleProductAggregator.java
* /giraph/trunk/src/main/java/org/apache/giraph/aggregators/DoubleSumAggregator.java
* /giraph/trunk/src/main/java/org/apache/giraph/aggregators/FloatAverageAggregator.java
* /giraph/trunk/src/main/java/org/apache/giraph/aggregators/FloatMaxAggregator.java
* /giraph/trunk/src/main/java/org/apache/giraph/aggregators/FloatMinAggregator.java
* /giraph/trunk/src/main/java/org/apache/giraph/aggregators/FloatOverwriteAggregator.java
* /giraph/trunk/src/main/java/org/apache/giraph/aggregators/FloatProductAggregator.java
* /giraph/trunk/src/main/java/org/apache/giraph/aggregators/FloatSumAggregator.java
* /giraph/trunk/src/main/java/org/apache/giraph/aggregators/IntMaxAggregator.java
* /giraph/trunk/src/main/java/org/apache/giraph/aggregators/IntMinAggregator.java
* /giraph/trunk/src/main/java/org/apache/giraph/aggregators/IntOverwriteAggregator.java
* /giraph/trunk/src/main/java/org/apache/giraph/aggregators/IntProductAggregator.java
* /giraph/trunk/src/main/java/org/apache/giraph/aggregators/IntSumAggregator.java
* /giraph/trunk/src/main/java/org/apache/giraph/aggregators/LongMaxAggregator.java
* /giraph/trunk/src/main/java/org/apache/giraph/aggregators/LongMinAggregator.java
* /giraph/trunk/src/main/java/org/apache/giraph/aggregators/LongOverwriteAggregator.java
* /giraph/trunk/src/main/java/org/apache/giraph/aggregators/LongProductAggregator.java
* /giraph/trunk/src/main/java/org/apache/giraph/aggregators/LongSumAggregator.java
* /giraph/trunk/src/main/java/org/apache/giraph/aggregators/package-info.java
* /giraph/trunk/src/main/java/org/apache/giraph/benchmark/RandomMessageBenchmark.java
* /giraph/trunk/src/main/java/org/apache/giraph/examples/LongSumAggregator.java
* /giraph/trunk/src/main/java/org/apache/giraph/examples/MaxAggregator.java
* /giraph/trunk/src/main/java/org/apache/giraph/examples/MinAggregator.java
* /giraph/trunk/src/main/java/org/apache/giraph/examples/SimpleCheckpointVertex.java
* /giraph/trunk/src/main/java/org/apache/giraph/examples/SimplePageRankVertex.java
* /giraph/trunk/src/main/java/org/apache/giraph/examples/SumAggregator.java
* /giraph/trunk/src/main/java/org/apache/giraph/examples/VerifyMessage.java
* /giraph/trunk/src/test/java/org/apache/giraph/TestBspBasic.java
* /giraph/trunk/src/test/java/org/apache/giraph/aggregators
* /giraph/trunk/src/test/java/org/apache/giraph/aggregators/TestBooleanAggregators.java
* /giraph/trunk/src/test/java/org/apache/giraph/aggregators/TestDoubleAggregators.java
* /giraph/trunk/src/test/java/org/apache/giraph/aggregators/TestFloatAggregators.java
* /giraph/trunk/src/test/java/org/apache/giraph/aggregators/TestIntAggregators.java
* /giraph/trunk/src/test/java/org/apache/giraph/aggregators/TestLongAggregators.java

                
> Move aggregators to a separate sub-package
> ------------------------------------------
>
>                 Key: GIRAPH-192
>                 URL: https://issues.apache.org/jira/browse/GIRAPH-192
>             Project: Giraph
>          Issue Type: Improvement
>          Components: examples
>    Affects Versions: 0.2.0
>            Reporter: Jan van der Lugt
>            Assignee: Jan van der Lugt
>            Priority: Minor
>             Fix For: 0.2.0
>
>         Attachments: GIRAPH-192.patch, GIRAPH-192.patch, GIRAPH-192.patch, GIRAPH-192.patch
>
>   Original Estimate: 2h
>  Remaining Estimate: 2h
>
> Since aggregators will be re-used throughout many projects and algorithms, it makes sense
to implement the most common ones in a separate sub-package. This will reduce the time required
for users when they implement their projects based on Giraph, because the required aggregators
are already in place. I implemented the following ones:
> for int/long/float/double: min, max, product, sum, overwrite
> for boolean: and, or, overwrite
> Most of them speak for themselves, except for the overwrite one. This aggregator simply
overwrites the stored value when a new value is aggregated. This is useful when one node is
in some way a master node (for example a source node in an routing algorithm), and this node
wants to broadcast a value to all other nodes.
> Attached is a patch against trunk implementing the aggregators and patching some existing
files so they use the .aggregators package instead of the .examples one.

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