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What does: "negative theta detected" mean?

What does: "negative theta detected" mean?

Questions and Answers : Unix/Linux : What does: "negative theta detected" mean?
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Drago75

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Message 66274 - Posted: 30 Oct 2022, 10:16:09 UTC

My UBUNTU 20.04 Laptop R7-5800H with 16 GB ran a single HadSM4 at N144 unit which errored out after six minutes with the following report. Was this due to missing libraries which I meanwhile installed?

<core_client_version>7.16.6</core_client_version>
<![CDATA[
<message>
process exited with code 22 (0x16, -234)</message>
<stderr_txt>

Model crashed: ATM_DYN : NEGATIVE THETA DETECTED.
Model crashed: ATM_DYN : NEGATIVE THETA DETECTED.
Model crashed: ATM_DYN : NEGATIVE THETA DETECTED.
Model crashed: ATM_DYN : NEGATIVE THETA DETECTED.
Model crashed: ATM_DYN : NEGATIVE THETA DETECTED.
Model crashed: ATM_DYN : NEGATIVE THETA DETECTED.
Sorry, too many model crashes! :-(
13:13:23 (8405): called boinc_finish(22)

</stderr_txt>
]]>[/size]
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Glenn Carver

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Message 66275 - Posted: 30 Oct 2022, 11:24:20 UTC - in response to Message 66274.  

It means the model has detected an error whilst it was running. It's not a problem with the system libraries. It means the model has detected unphysical values in temperature and stopped. It can happen with inappropriate initial values.
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wateroakley

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Message 66276 - Posted: 30 Oct 2022, 11:25:35 UTC - in response to Message 66274.  

My UBUNTU 20.04 Laptop R7-5800H with 16 GB ran a single HadSM4 at N144 unit which errored out after six minutes with the following report. Was this due to missing libraries which I meanwhile installed?
Model crashed: ATM_DYN : NEGATIVE THETA DETECTED.
]]>[/size]
The work unit will have crashed with NEGATIVE THETA due to an unfortunate choice of initial conditions. The crash is not due to missing libraries.
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Drago75

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Message 66279 - Posted: 30 Oct 2022, 23:41:40 UTC - in response to Message 66276.  

ok thanks...
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Questions and Answers : Unix/Linux : What does: "negative theta detected" mean?

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