[Ncep.list.emc.monsoondesk] Bug which caused CFSv2 giving different results when layout or/and no procs for ocean model was changed.

Shrinivas Moorthi - NOAA Federal shrinivas.moorthi at noaa.gov
Sun Feb 16 16:58:47 UTC 2014


Dear Dr. Sahai,
   You are absolutely right.
Regards,
Moorthi


On Sun, Feb 16, 2014 at 10:15 AM, Dr. A.K.Sahai <sahai at tropmet.res.in>wrote:

> Dear Dr. Moorthi,
>
> The issue is not that Larry(COLA) has identified the bug first or
> Prajeesh(IITM) has identified first and also is not that it was informed to
> IITM or not. Even it has been informed to IITM then there are different
> groups working on CFS and it is not possible to inform all in bits and
> pieces. Also how many bugs are still there? All these should be documented
> properly. The lack of a proper documentation is the main hurdle in
> implementation and development on CFS. Therefore NCEP/COLA/IITM has to work
> collaboratively for the proper documentation and if required IITM should
> send some young scientists to COLA/NCEP for this very important work.
>
> Regards
> Sahai
>
> ------------------------------------------
> Dr. Atul Kumar Sahai
> Scientist-F
> Chief Project Scientist,Extended Range Prediction
> Chief Project Scientist, High Performance Computing
> Indian Institute of Tropical Meteorology
> Ministry of Earth Sciences
> Dr. Homi Bhabha Road, Pashan, Pune
> 411 008, INDIA
> Phone:+91 20 25904520
> Fax : +91 20 25865142
> Mobile:+91 9423582314
>
> ----- Original Message -----
> From: "Shrinivas Moorthi - NOAA Federal" <shrinivas.moorthi at noaa.gov>
> To: "Suryachandra Rao" <surya at tropmet.res.in>
> Cc: kinter at cola.iges.edu, marx at cola.iges.edu, "gibies george" <
> gibiesgeorge at gmail.com>, "Roxy Mathew" <roxy at tropmet.res.in>, "Swapna P" <
> swapna at tropmet.res.in>, "Dr. K Ashok" <ashok at tropmet.res.in>,
> "SujithKrishna" <sujith at tropmet.res.in>, "Sabeerali C. T." <
> sabeer at tropmet.res.in>, "monsoon desk" <monsoon.desk at tropmet.res.in>,
> "Xingren Wu - NOAA Affiliate" <Xingren.Wu at noaa.gov>, "Prajeesh A.G CAT" <
> prajeesh.cat at tropmet.res.in>
> Sent: Sunday, February 16, 2014 7:10:38 AM
> Subject: Re: Bug which caused CFSv2 giving different results when layout
> or/and no procs for ocean model was changed.
>
>
>
>
> Surya,
> We do have a fixed version of this code and I could send the routines that
> are fixed if you wish.
> Moorthi
>
>
>
>
> On Sun, Feb 16, 2014 at 1:09 AM, Suryachandra Rao < surya at tropmet.res.in> wrote:
>
>
> Dear JIm,
>
> Please have a look at the following discussion. You have mentioned once
> that you have informed Prof. Goswami about some bug that is impacting AMOC
> in CFS V2.
> Can you please share the bug fix with this group. Are you part of the
> monsoon desk emailing list? If not, we can add your group to the list.
>
> Regards
> Surya
>
>
>
>
>
> Dr. Suryachandra A. Rao
> Chief Scientist
> Program on Development of Seasonal Prediction System
> Indian Institute of Tropical Meteorology
> Pashan, Pune -411 008, India
> Phone: +91-2025904245
>
> ----- Original Message -----
> From: "Shrinivas Moorthi - NOAA Federal" < shrinivas.moorthi at noaa.gov >
> To: "Prajeesh A.G CAT" < prajeesh.cat at tropmet.res.in >
> Cc: gibiesgeorge at gmail.com , "Roxy Mathew" < roxy at tropmet.res.in >,
> "Swapna P" < swapna at tropmet.res.in >, "Dr. K Ashok" < ashok at tropmet.res.in>, "SujithKrishna" <
> sujith at tropmet.res.in >, "Sabeerali C. T." < sabeer at tropmet.res.in >,
> "monsoon desk" < monsoon.desk at tropmet.res.in >, "Xingren Wu - NOAA
> Affiliate" < Xingren.Wu at noaa.gov >
> Sent: Sunday, February 16, 2014 5:55:26 AM
> Subject: Re: Bug which caused CFSv2 giving different results when layout
> or/and no procs for ocean model was changed.
>
>
>
> This was a bug that was first identified by Larry Marx of COLA. I was
> under the impression that COLA had informed IITM about this. We have not
> corrected this bug in the operations since the bug was also in the
> hindcasts.
> Moorthi
>
>
>
>
> On Sat, Feb 15, 2014 at 12:47 AM, Prajeesh A.G CAT <
> prajeesh.cat at tropmet.res.in > wrote:
>
>
>
>
> yeah, That is a better solution. anyway needs to be tested.
>
> Regards..
>
> Prajeesh A G
> Scientist 'B'
> CCCR, IITM
> Pune, India
>
>
>
>
>
> --
> Dr. Shrinivas Moorthi
> Research Meteorologist
> Global Climate and Weather Modeling Branch
> Environmental Modeling Center / National Centers for Environmental
> Prediction
> 5830 University Research Court - (W/NP23), College Park MD 20740 USA
> Tel: (301)683-3718
>
> e-mail: Shrinivas.Moorthi at noaa.gov
> Phone: (301) 683-3718 Fax: (301) 683-3718
>
>
>
> --
> Dr. Shrinivas Moorthi
> Research Meteorologist
> Global Climate and Weather Modeling Branch
> Environmental Modeling Center / National Centers for Environmental
> Prediction
> 5830 University Research Court - (W/NP23), College Park MD 20740 USA
> Tel: (301)683-3718
>
> e-mail: Shrinivas.Moorthi at noaa.gov
> Phone: (301) 683-3718 Fax: (301) 683-3718
>



-- 
Dr. Shrinivas Moorthi
Research Meteorologist
Global Climate and Weather Modeling Branch
Environmental Modeling Center / National Centers for Environmental
Prediction
5830 University Research Court - (W/NP23), College Park MD 20740 USA
Tel: (301)683-3718

e-mail: Shrinivas.Moorthi at noaa.gov
Phone:  (301) 683-3718   Fax: (301) 683-3718
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