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Posted to dev@ignite.apache.org by "Sisko Vasiliy (JIRA)" <ji...@apache.org> on 2015/03/16 07:55:38 UTC
[jira] [Updated] (IGNITE-453) ScalaPiCalculationExample results
actualization
[ https://issues.apache.org/jira/browse/IGNITE-453?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Sisko Vasiliy updated IGNITE-453:
---------------------------------
Attachment: #_IGNITE-453_Scalar_test_as_reflection_of_Java_test.patch
> ScalaPiCalculationExample results actualization
> -----------------------------------------------
>
> Key: IGNITE-453
> URL: https://issues.apache.org/jira/browse/IGNITE-453
> Project: Ignite
> Issue Type: Task
> Components: general
> Affects Versions: sprint-1
> Environment: Ubuntu 14.04, Ignite ver. 1.0.0-RC1#20150217-sha1:16ef8eac
> Reporter: Vasilisa Sidorova
> Assignee: Sisko Vasiliy
> Priority: Minor
> Fix For: sprint-2
>
> Attachments: #_IGNITE-453_Scalar_test_as_reflection_of_Java_test.patch
>
>
> ---------------------------------------------
> STEPS FOR REPRODUCE
> ---------------------------------------------
> 1. Run ScalaPiCalculationExample
> 2. Remember the result
> 3. Run one Compute Node
> 4. Run ScalaPiCalculationExample
> 5. Remember the result
> 6. Stop node from step 3
> 7. Run 4 compute nodes (for example, 2 from command line, and 2 from Idea IDE)
> 8. Run ScalaPiCalculationExample
> 9. Compare results from 2, 5 & 9 steps
> ---------------------------------------------
> ACTUAL RESULT
> ---------------------------------------------
> The results are different beginning from the eleventh decimal place:
> Pi estimate: 3.141592653590042 - no one Compute Node is started
> Pi estimate: 3.141592653589823 - one Compute Node is started
> Pi estimate: 3.141592653589794 - four Compute Node are started
> Please, clarify is this bug or feature?
> ---------------------------------------------
> EXPECTED RESULT
> ---------------------------------------------
> The results aren't depended from number of started nodes
> ---------------------------------------------
> ADDITIONAL INFO
> ---------------------------------------------
> Is also reproducible for GG 6.6.3-p1 (ver. 6.6.3-p1-ent#20150228-sha1:ece6cbbd) - with the same values of Pi
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