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PostPosted: Thu Oct 19, 2017 7:39 pm 
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Joined: Fri Jun 16, 2017 1:06 am
Posts: 8
Hi,

I met an error about LBC creation when running PRECIS 2.0 with RCP8.5. The status of PRECIS was always "Updating ancillary files...". I checked the leave file and found the following error:
"
....
2005 11 30
2006 1 1
ERROR: LBC creation failed
ERROR: Failed in system /home/precis/um/vn4.5/scripts/../utils/makebc_cmip5 -i /home/precis/precis_expt/wxqaq/akwsxa.pgk5c10.pp /home/precis/precis_expt/wxqaq/akwsxa.pgk5cb0.pp /home/precis/precis_expt/wxqaq/akwsxa.pgk5cl0.pp /home/precis/precis_expt/wxqaq/akwsxa.pgk6110.pp -n /home/precis/precis_expt/wxqaq/makebc.namelist -o /home/precis/precis_expt/lbc/wxqaq/akwsxa.bak5c10
at /home/precis/um/vn4.5/scripts/../utils/lbc_create_vn7.8 line 341.
See /home/precis/precis_expt/wxqaq/lbc/akwsxa.bak5c10.d17289.t084045.out for details.
ERROR: Failed in system /home/precis/um/vn4.5/scripts/../utils/lbc_create_vn7.8 -d /home/precis/umui_runs/wxqaq-290083920 -f 0,0,0,6,0,0 -o /home/precis/precis_expt/lbc/wxqaq/akwsxa.bak5c10 -m akwsxa..*pg -O /home/precis/precis_expt/wxqaq/lbc/akwsxa.bak5c10.d17289.t084045.out /home/precis/precis_expt/wxqaq/akwsxa.pgk5c10.pp /home/precis/precis_expt/wxqaq/akwsxa.pgk5cb0.pp /home/precis/precis_expt/wxqaq/akwsxa.pgk5cl0.pp /home/precis/precis_expt/wxqaq/akwsxa.pgk6110.pp
at /home/precis/um/vn4.5/scripts/lbc_update_cmip5 line 825.
main::create_LBC_('/home/precis/precis_expt/wxqaq/akwsxa.pgk5c10.pp', '/home/precis/precis_expt/wxqaq/akwsxa.pgk5cb0.pp', '/home/precis/precis_expt/wxqaq/akwsxa.pgk5cl0.pp', '/home/precis/precis_expt/wxqaq/akwsxa.pgk6110.pp') called at /home/precis/um/vn4.5/scripts/lbc_update_cmip5 line 544
Time taken by /home/precis/um/vn4.5/scripts/lbc_update_cmip5:
**LBC_TIME: 5.10s real 1.28s user 0.70s system
"

Would you please help check this problem? I have attached the leave file to this post.

Many thanks.
Xander


Attachments:
wxqaq000.wxqaq.d17290.t083920.leave.zip [3.77 KiB]
Downloaded 3 times
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PostPosted: Mon Oct 23, 2017 3:37 pm 
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Joined: Tue Jun 07, 2016 10:18 am
Posts: 15
Hi Xander
The software engineers in the team are incredibly busy at the moment, but Simon asked me if you could please attach
home/precis/precis_expt/wxqaq/lbc/akwsxa.bak5c10.d17289.t084045.out
And he will try to get back to you soon.
best wishes
Laura


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PostPosted: Mon Oct 23, 2017 3:52 pm 
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Joined: Fri Jun 16, 2017 1:06 am
Posts: 8
Hi Laura,

Yes, attached please find the file.

Many thanks.
Xander


Attachments:
akwsxa.bak5c10.d17289.t084045.out.zip [3.08 KiB]
Downloaded 4 times
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PostPosted: Mon Nov 20, 2017 7:48 am 
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Joined: Mon Sep 26, 2016 7:30 am
Posts: 12
Hi Xander,
Sorry for delay in getting back to you. Currently we are going through a busy period. But we are now investigating your issue and will be in touch soon.

Regards,


Saeed


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PostPosted: Mon Nov 20, 2017 9:28 am 
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Joined: Thu Mar 27, 2014 5:03 pm
Posts: 68
Hi Xander,

I'm surprised: you are using global PP4LBC files. Usually we extract a sub domain off the data.

The extraction has two purposes:
1) it reduces data volumes making the data easy to transfer
2) it also changes the data to little endian.

The problem you have is that 2) hasn't happened, and so your data is big-endian, when it should be little.

Please try the following
Code:
NEW_PP4LBCDIR=[path to a new directory.  Must be somewhere with a large amount of space.]
mkdir -p $NEW_PP4LBCDIR/akwsx
cd $PP4LBCDDIR/akwsx
for file  akwsxa.pgk*.pp   # this is just the first few years of data as a trial, remove the k to change everything   
do
bigend -32 $file  $NEW_PP4LBCDIR/akwsx/$file
done


Having done this, edit your ~/setvars file to change the PP4LBCDIR to the new location, and try running PRECIS again. Let us know whether it works.

Out of interest, how did you obtain this boundary data? I didn't think we gave out global data (partly because of the issue you have experienced), I'm keen to know whether there are any other users.

All the best,
Simon

_________________
Simon Tucker
Met Office Hadley Centre


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PostPosted: Mon Nov 20, 2017 2:47 pm 
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Joined: Fri Jun 16, 2017 1:06 am
Posts: 8
Hi Simon,

Thank you so much for your help. I will try this out and see whether it works.

We requested the global data from Hadley Center as we have several domains which are located in North and South Hemispheres. We have never distributed the data to others.

All the best,
Xander


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