[Developers] parfile-error warnings

[Baiotti Luca]

Erik Schnetter wrote:
> On Nov 8, 2008, at 14:59:34, Baiotti Luca wrote:
> 
>> Hello,
>>
>> warnings like:
>>
>> CCTKi_SetParameter: Error at line 11 in parameter file ....par while
>> activating thorns
>> WARNING level 0 in thorn Cactus processor 277 host qb540
>>  (line 93 of
>> /home/baiotti/Cactus/configs/whisky/build/Cactus/main/SetParams.c):
>>  ->WARNING level 0 in thorn Cactus processor 131 host ...
>>
>>
>> are printed by each processor. If all processors read the same parfile,
>> could Cactus print only one warning/error message instead of one per
>> processor?
> 
> The idea here (and in other, similar places) in Cactus is that warnings 
> generated by any processor are displayed on the root processor, since 
> warnings are important.
> 
> What you are probably looking for is a possibility to display a warning 
> only on the root processor.  One could implement this here quickly with 
> an if statement about the CCTK_WARN call.  A more general mechanism 
> would be more complex if it has to ensure that no warnings are lost.

Yes, I would like warnings that are identical on all processors to be 
displayed only once on the root processor. Or at least the warnings 
about parfile errors.

> Another annoying message is the very first message "setting warning 
> level to...", displayed 12288 times if running on that many processors.


Could some cactus developer implement these improvements?


Ciao,

Luca