Compute the transpose of a matrix
---------------------------------
Key: HAMA-174
URL: https://issues.apache.org/jira/browse/HAMA-174
Project: Hama
Issue Type: Improvement
Components: implementation, mapred
Affects Versions: 0.1.0
Reporter: Edward J. Yoon
Fix For: 0.1.0
The transpose of a matrix is another matrix in which the rows and columns have been reversed. The matrix must be square for this work.
| a11 a12 a13 | | a11 a21 a31 |
| a21 a22 a23 | => | a12 a22 a32 |
| a31 a32 a33 | | a13 a23 a33 |
- A map task receives a row n as a key, and vector of each row as its value
- emit (Reversed index, the entry with the given index)
ex) row = 1, { 1: a11, 2: a12, 3: a13 }
a11, a11
a21, a12
a31, a13
...
- Reduce task sets the reversed values
--
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Hudson commented on HAMA-174:
-----------------------------
+1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12405983/HAMA-174.patch
against trunk revision 766595.
@author +1. The patch does not contain any @author tags.
tests included +1. The patch appears to include 6 new or modified tests.
javadoc +1. The javadoc tool did not generate any warning messages.
javac +1. The applied patch does not generate any new javac compiler warnings.
release audit +1. The applied patch does not generate any new release audit warnings.
findbugs +1. The patch does not introduce any new Findbugs warnings.
core tests +1. The patch passed core unit tests.
Test results: http://hudson.zones.apache.org/hudson/job/Hama-Patch/170/testReport/
Findbugs warnings: http://hudson.zones.apache.org/hudson/job/Hama-Patch/170/artifact/trunk/build/reports/findbugs/newPatchFindbugsWarnings.html
Checkstyle results: http://hudson.zones.apache.org/hudson/job/Hama-Patch/170/artifact/trunk/build/test/checkstyle-errors.html
Console output: http://hudson.zones.apache.org/hudson/job/Hama-Patch/170/console
This message is automatically generated.
> Compute the transpose of a matrix
> ---------------------------------
>
> Key: HAMA-174
> URL: https://issues.apache.org/jira/browse/HAMA-174
> Project: Hama
> Issue Type: Improvement
> Components: implementation, mapred
> Affects Versions: 0.1.0
> Reporter: Edward J. Yoon
> Assignee: Edward J. Yoon
> Fix For: 0.1.0
>
> Attachments: HAMA-174.patch
>
>
> The transpose of a matrix is another matrix in which the rows and columns have been reversed. The matrix must be square for this work.
> | a11 a12 a13 | | a11 a21 a31 |
> | a21 a22 a23 | => | a12 a22 a32 |
> | a31 a32 a33 | | a13 a23 a33 |
> - A map task receives a row n as a key, and vector of each row as its value
> - emit (Reversed index, the entry with the given index)
> ex) row = 1, { 1: a11, 2: a12, 3: a13 }
> a11, a11
> a21, a12
> a31, a13
> ...
> - Reduce task sets the reversed values
--
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You can reply to this email to add a comment to the issue online.
[ https://issues.apache.org/jira/browse/HAMA-174?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Edward J. Yoon updated HAMA-174:
--------------------------------
Resolution: Fixed
Status: Resolved (was: Patch Available)
I just committed this.
> Compute the transpose of a matrix
> ---------------------------------
>
> Key: HAMA-174
> URL: https://issues.apache.org/jira/browse/HAMA-174
> Project: Hama
> Issue Type: Improvement
> Components: implementation, mapred
> Affects Versions: 0.1.0
> Reporter: Edward J. Yoon
> Assignee: Edward J. Yoon
> Fix For: 0.1.0
>
> Attachments: HAMA-174.patch
>
>
> The transpose of a matrix is another matrix in which the rows and columns have been reversed. The matrix must be square for this work.
> | a11 a12 a13 | | a11 a21 a31 |
> | a21 a22 a23 | => | a12 a22 a32 |
> | a31 a32 a33 | | a13 a23 a33 |
> - A map task receives a row n as a key, and vector of each row as its value
> - emit (Reversed index, the entry with the given index)
> ex) row = 1, { 1: a11, 2: a12, 3: a13 }
> a11, a11
> a21, a12
> a31, a13
> ...
> - Reduce task sets the reversed values
--
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You can reply to this email to add a comment to the issue online.
[ https://issues.apache.org/jira/browse/HAMA-174?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Edward J. Yoon updated HAMA-174:
--------------------------------
Attachment: HAMA-174.patch
Here's my patch.
> Compute the transpose of a matrix
> ---------------------------------
>
> Key: HAMA-174
> URL: https://issues.apache.org/jira/browse/HAMA-174
> Project: Hama
> Issue Type: Improvement
> Components: implementation, mapred
> Affects Versions: 0.1.0
> Reporter: Edward J. Yoon
> Assignee: Edward J. Yoon
> Fix For: 0.1.0
>
> Attachments: HAMA-174.patch
>
>
> The transpose of a matrix is another matrix in which the rows and columns have been reversed. The matrix must be square for this work.
> | a11 a12 a13 | | a11 a21 a31 |
> | a21 a22 a23 | => | a12 a22 a32 |
> | a31 a32 a33 | | a13 a23 a33 |
> - A map task receives a row n as a key, and vector of each row as its value
> - emit (Reversed index, the entry with the given index)
> ex) row = 1, { 1: a11, 2: a12, 3: a13 }
> a11, a11
> a21, a12
> a31, a13
> ...
> - Reduce task sets the reversed values
--
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You can reply to this email to add a comment to the issue online.
[ https://issues.apache.org/jira/browse/HAMA-174?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Edward J. Yoon updated HAMA-174:
--------------------------------
Status: Patch Available (was: In Progress)
Running patch through Hudson.
> Compute the transpose of a matrix
> ---------------------------------
>
> Key: HAMA-174
> URL: https://issues.apache.org/jira/browse/HAMA-174
> Project: Hama
> Issue Type: Improvement
> Components: implementation, mapred
> Affects Versions: 0.1.0
> Reporter: Edward J. Yoon
> Assignee: Edward J. Yoon
> Fix For: 0.1.0
>
> Attachments: HAMA-174.patch
>
>
> The transpose of a matrix is another matrix in which the rows and columns have been reversed. The matrix must be square for this work.
> | a11 a12 a13 | | a11 a21 a31 |
> | a21 a22 a23 | => | a12 a22 a32 |
> | a31 a32 a33 | | a13 a23 a33 |
> - A map task receives a row n as a key, and vector of each row as its value
> - emit (Reversed index, the entry with the given index)
> ex) row = 1, { 1: a11, 2: a12, 3: a13 }
> a11, a11
> a21, a12
> a31, a13
> ...
> - Reduce task sets the reversed values
--
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You can reply to this email to add a comment to the issue online.
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Edward J. Yoon reassigned HAMA-174:
-----------------------------------
Assignee: Edward J. Yoon
> Compute the transpose of a matrix
> ---------------------------------
>
> Key: HAMA-174
> URL: https://issues.apache.org/jira/browse/HAMA-174
> Project: Hama
> Issue Type: Improvement
> Components: implementation, mapred
> Affects Versions: 0.1.0
> Reporter: Edward J. Yoon
> Assignee: Edward J. Yoon
> Fix For: 0.1.0
>
>
> The transpose of a matrix is another matrix in which the rows and columns have been reversed. The matrix must be square for this work.
> | a11 a12 a13 | | a11 a21 a31 |
> | a21 a22 a23 | => | a12 a22 a32 |
> | a31 a32 a33 | | a13 a23 a33 |
> - A map task receives a row n as a key, and vector of each row as its value
> - emit (Reversed index, the entry with the given index)
> ex) row = 1, { 1: a11, 2: a12, 3: a13 }
> a11, a11
> a21, a12
> a31, a13
> ...
> - Reduce task sets the reversed values
--
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You can reply to this email to add a comment to the issue online.