[ET Trac] [Einstein Toolkit] #864: Improve error reporting in Multipole

[Einstein Toolkit]

#864: Improve error reporting in Multipole
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 Reporter:  hinder                 |       Owner:     
     Type:  enhancement            |      Status:  new
 Priority:  minor                  |   Milestone:     
Component:  EinsteinToolkit thorn  |     Version:     
 Keywords:                         |  
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 When Multipole encounters an interpolation error, the error output from
 the interpolator consists of thousands of lines each listing the points
 that failed.  This is too much information to process.  It is also not
 clear that the error came from Multipole.

 1. This output should be limited;
 2. The error should be prefixed with "Multipole" so the user knows which
 thorn was responsible for calling the interpolator (maybe the new
 CCTK_ScheduleQueryCurrentFunction from #817 could be used for this);
 3. Multipole should contain a check in CCTK_PARAMCHECK that the extraction
 radii are not outside the Cactus base grid.

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Ticket URL: <https://trac.einsteintoolkit.org/ticket/864>
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