[MITgcm-support] ARCHER, cray, mpi and STDOUT

[Jean-Michel Campin]

Hi Dan,

Dimitris is right, setting debugMode=.TRUE., (in eedata) will flush the STDOUT unit after 
each write. But I would recommend also to set explicitly debugLevel to, e.g., 2,
since debugMode affects the default debugLevel (set to 4 instead of 2).

Cheers,
Jean-Michel

On Tue, Feb 19, 2019 at 07:10:10PM +0000, GOLDBERG Daniel wrote:
> thanks dimitris!
> 
> no doubt this will give a performance hit (will test if i get a chance) but this will help with debugging.
> 
> all the best
> dan
> 
> On Tue, Feb 19, 2019 at 5:59 PM Dimitris Menemenlis <dmenemenlis at gmail.com<mailto:dmenemenlis at gmail.com>> wrote:
> Hi Dan, I think that one way to make sure that STD* files are flushed more regularly is via option
> 
>  debugMode=.TRUE.,
> 
> in runtime parameter file eedata.  I don???t know if there is a performance hit for that.  You should test.
> 
> Dimitris Menemenlis
> 
> On Feb 18, 2019, at 5:02 AM, GOLDBERG Daniel <Dan.Goldberg at ed.ac.uk<mailto:Dan.Goldberg at ed.ac.uk>> wrote:
> 
> Hi All
> 
> I wonder if i can ask a question of MITgcm users on ARCHER, who are using cray fortran compilers?
> 
> I am used to monitoring the STDOUT.* files to monitor the progress of my runs. I have recently begun using ARCHER, and until now was using intel compilers, and this worked just fine -- the STDOUT.* files update frequently.
> 
> But I am now using cray compilers (via the optfile tools/build_options/linux_ia64_cray_archer) and am finding that STDOUT.* are not updated until the batch is completed. Has anyone else had similar issues? Are there any settings which can be changed, or any other files which receive standard output streams and are updated more frequently?
> 
> Many thanks if anyone has an answer!!!!
> 
> Best
> Dan
> 
> 
> --
> 
> Daniel Goldberg, PhD
> Sr. Lecturer in Glaciology
> School of Geosciences, University of Edinburgh
> Geography Building, Drummond Street, Edinburgh EH8 9XP
> 
> 
> em: dan.goldberg at ed.ac.uk<mailto:dan.goldberg at ed.ac.uk>
> web: https://www.geos.ed.ac.uk/homes/dgoldber
> The University of Edinburgh is a charitable body, registered in Scotland, with registration number SC005336.
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> --
> 
> Daniel Goldberg, PhD
> Sr. Lecturer in Glaciology
> School of Geosciences, University of Edinburgh
> Geography Building, Drummond Street, Edinburgh EH8 9XP
> 
> 
> em: dan.goldberg at ed.ac.uk<mailto:dan.goldberg at ed.ac.uk>
> web: https://www.geos.ed.ac.uk/homes/dgoldber

> The University of Edinburgh is a charitable body, registered in
> Scotland, with registration number SC005336.

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