Wingman task assignments to same computer

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AnandBhat

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Message 101 - Posted: 14 May 2022, 14:40:57 UTC

I have several workunits where both initial replication tasks have been sent to the same computer.

Examples:
Workunit 18294 - Tasks 41024 and 41025 have both been assigned to computer 139.
Workunit 18357 - Tasks 41150 and 41151 have both been assigned to computer 139.

I'm assuming this is an assignment error, as it'd be kinda pointless to have quorum of 2 from the same computer.
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Catchercradle

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Message 106 - Posted: 14 May 2022, 15:16:11 UTC - in response to Message 101.  

I have several workunits where both initial replication tasks have been sent to the same computer.

Examples:
Workunit 18294 - Tasks 41024 and 41025 have both been assigned to computer 139.
Workunit 18357 - Tasks 41150 and 41151 have both been assigned to computer 139.

I'm assuming this is an assignment error, as it'd be kinda pointless to have quorum of 2 from the same computer.


Me too.
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Christian Krause
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Message 116 - Posted: 14 May 2022, 18:24:06 UTC - in response to Message 106.  

This is not an issue. No resources are being wasted. LODA does random mining, not a structured or exhaustive search. As long as the miners are running, they can produce meaningful results (no duplicate work is done).
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Henk Haneveld

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Message 117 - Posted: 14 May 2022, 18:36:00 UTC - in response to Message 116.  

This is not an issue. No resources are being wasted. LODA does random mining, not a structured or exhaustive search. As long as the miners are running, they can produce meaningful results (no duplicate work is done).

If you are saying that the 2 copies of the workunit do different work, what is the point of sending out 2 copies?
How can they be valided againtst each other?
It would be beter to set replication to 1 in that case.
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Christian Krause
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Message 121 - Posted: 14 May 2022, 18:53:49 UTC - in response to Message 117.  

Yes, we'll review the job configuration. Thanks for your feedback!
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Christian Krause
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Message 148 - Posted: 15 May 2022, 15:57:57 UTC - in response to Message 121.  

I have made the following configuration change:
<one_result_per_user_per_wu>1</one_result_per_user_per_wu>

(it was 0). Should that fix the problem?

https://boinc.berkeley.edu/trac/wiki/ProjectOptions
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AnandBhat

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Message 154 - Posted: 16 May 2022, 1:00:14 UTC - in response to Message 148.  

If the nature of work done at LODA makes replication redundant, I would suggest setting initial replication and minimum quorum to 1 instead. Or at the very least, use Adaptive Replication.
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Christian Krause
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Message 158 - Posted: 16 May 2022, 14:37:17 UTC - in response to Message 154.  

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Catchercradle

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Message 159 - Posted: 16 May 2022, 15:11:36 UTC - in response to Message 148.  

I have made the following configuration change:
<one_result_per_user_per_wu>1</one_result_per_user_per_wu>

(it was 0). Should that fix the problem?

https://boinc.berkeley.edu/trac/wiki/ProjectOptions


Should do as 0 in terms of what is allowed by BOINC usually means, "no restriction."
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Christian Krause
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Message 160 - Posted: 16 May 2022, 15:13:26 UTC - in response to Message 159.  

Yes, I have reverted that (back to 0)
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Jim1348

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Message 187 - Posted: 17 May 2022, 19:09:28 UTC - in response to Message 160.  

Are these supposed to be a replication of 1 now?

I just downloaded and ran several today and they are still 2.
https://boinc.loda-lang.org/loda/workunit.php?wuid=2560
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Christian Krause
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Message 198 - Posted: 18 May 2022, 17:24:04 UTC - in response to Message 187.  

I think that is still an old WU. Here a new one:
https://boinc.loda-lang.org/loda/workunit.php?wuid=34726
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Jim1348

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Message 199 - Posted: 18 May 2022, 18:12:24 UTC - in response to Message 198.  

Thank you. That should do it.
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Questions and Answers : Getting started : Wingman task assignments to same computer

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