[MITgcm-support] ptracer and sponge (Daniel Goldberg)
whale
250107302 at qq.com
Thu May 17 06:05:28 EDT 2018
Dear Daniel
I think you are right. The OBCS does not contain PTracer forcing. You need to employ RBCS to restore the PTracer.
Cheers
Chengyan
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From: "mitgcm-support-request"<mitgcm-support-request at mitgcm.org>;
Date: Thu, May 17, 2018 04:07 PM
To: "mitgcm-support"<mitgcm-support at mitgcm.org>;
Subject: MITgcm-support Digest, Vol 179, Issue 11
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Today's Topics:
1. Output 2D slice from 3D simulation (Ruan Xiaozhou)
2. segmentation fault (Andreas Klocker)
3. ptracer and sponge (Daniel Goldberg)
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Message: 1
Date: Thu, 17 May 2018 03:35:13 +0000
From: Ruan Xiaozhou <saberruan at hotmail.com>
To: "mitgcm-support at mitgcm.org" <mitgcm-support at mitgcm.org>
Subject: [MITgcm-support] Output 2D slice from 3D simulation
Message-ID:
<DM5PR12MB19295B811982B2861D2917E7A0910 at DM5PR12MB1929.namprd12.prod.outlook.com>
Content-Type: text/plain; charset="utf-8"
Dear MITgcm users,
Hope this message finds you well. I have been trying to output 2D slice (YZ) data from a 3D simulation (because the 3D field is too large to be outputted at high frequency) but did not find proper locations in the diagnostics package. I?d really appreciate it if you could point me to the right directions.
Best,
Xiaozhou
--
Xiaozhou Ruan
Division of Geological and Planetary Sciences
California Institute of Technology
MC 131-24
Pasadena, CA 91125
phone: +1 626-395-8715
email: xiaozhour at caltech.edu<mailto:xiaozhour at caltech.edu>
web: http://www.its.caltech.edu/~xruan
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Message: 2
Date: Thu, 17 May 2018 16:27:33 +1000
From: Andreas Klocker <andreas.klocker at utas.edu.au>
To: "mitgcm-support at mitgcm.org" <mitgcm-support at mitgcm.org>
Subject: [MITgcm-support] segmentation fault
Message-ID: <d299752c-4dd1-1994-9894-2ccdf87e196b at utas.edu.au>
Content-Type: text/plain; charset=UTF-8; format=flowed
Hi guys,
I've taken a working 1/24 degree nested simulation (of Drake Passage)
with 42 vertical layers and tried to increase the vertical layers to 150
(without changing anything else apart from obviously my boundary files
for OBCS and recompiling with 150 vertical layers). Suddenly I get the
following error message:
forrtl: severe (174): SIGSEGV, segmentation fault occurred
Image PC Routine Line Source
libirc.so 00002BA1704BC2C9 Unknown Unknown Unknown
libirc.so 00002BA1704BAB9E Unknown Unknown Unknown
libifcore.so.5 00002BA1722B5F3F Unknown Unknown Unknown
libifcore.so.5 00002BA17221DD7F Unknown Unknown Unknown
libifcore.so.5 00002BA17222EF43 Unknown Unknown Unknown
libpthread.so.0 00002BA1733B27E0 Unknown Unknown Unknown
mitgcmuv_drake24_ 00000000004E61BC mom_calc_visc_ 3345 mom_calc_visc.f
mitgcmuv_drake24_ 0000000000415127 mom_vecinv_ 3453 mom_vecinv.f
mitgcmuv_drake24_ 0000000000601C33 dynamics_ 3426 dynamics.f
mitgcmuv_drake24_ 0000000000613C2B forward_step_ 2229 forward_step.f
mitgcmuv_drake24_ 000000000064581E main_do_loop_ 1886 main_do_loop.f
mitgcmuv_drake24_ 000000000065E500 the_main_loop_ 1904 the_main_loop.f
mitgcmuv_drake24_ 000000000065E6AE the_model_main_ 2394 the_model_main.f
mitgcmuv_drake24_ 00000000005C6439 MAIN__ 3870 main.f
mitgcmuv_drake24_ 0000000000406776 Unknown Unknown Unknown
libc.so.6 00002BA1737E2D1D Unknown Unknown Unknown
mitgcmuv_drake24_ 0000000000406669 Unknown Unknown Unknown
First this error pointed to a line in mom_calc_visc.f on which
calculations regarding the Leith viscosity are done. As a test I then
used a Smagorinsky viscosity instead and now it crashes with the same
error, but pointing to a line where Smagorinsky calculations are done. I
assume I must be chasing a way more fundamental problem than one related
to these two viscosity choices...but I'm not sure what this might be....
Has anyone got any idea of what could be going wrong here?
Thanks in advance!
Andreas
University of Tasmania Electronic Communications Policy (December, 2014).
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Message: 3
Date: Thu, 17 May 2018 09:07:26 +0100
From: Daniel Goldberg <dngoldberg at gmail.com>
To: MITgcm-support at mitgcm.org
Subject: [MITgcm-support] ptracer and sponge
Message-ID:
<CAEhdavJ9PbX8SC-cM8RYJJEVODu6b71qNQLdDknDzZnRMeHTQg at mail.gmail.com>
Content-Type: text/plain; charset="utf-8"
Hello all
>From what i can tell, the obcs sponge facility is not implemented for
PTRACERS? I just want to make sure this is correct before i set up RBCS for
a passive tracer.
Many thanks
Dan
--
Daniel Goldberg, PhD
Lecturer in Glaciology
School of Geosciences, University of Edinburgh
Geography Building, Drummond Street, Edinburgh EH8 9XP
em: D <dgoldber at mit.edu>dan.goldberg at ed.ac.uk
web: https://www.geos.ed.ac.uk/homes/dgoldber
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