[ncl-talk] Uasage of NCL-version 6.6

[Geeta Geeta]

Thanks for ur insights. Here is what I got.... 

db ncl core
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Reading symbols from ncl...
[New LWP 34114]
[New LWP 34116]
[New LWP 34117]
[New LWP 34115]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Core was generated by `ncl -x hem_rgrid.ncl'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x000055e2de11ac45 in NrmStringToQuark ()
[Current thread is 1 (Thread 0x7f72d8aaab40 (LWP 34114))]

(gdb) bt#0  0x000055e2de11ac45 in NrmStringToQuark ()
#1  0x000055e2dde5315f in _addH5address ()
#2  0x000055e2dde5851a in _searchH5byName ()
#3  0x00007f72e206b38e in H5G_visit_cb () from /home/geeta/anaconda3/envs/ncl_stable/bin/../lib/libhdf5.so.103
#4  0x00007f72e2072ddd in H5G__node_iterate () from /home/geeta/anaconda3/envs/ncl_stable/bin/../lib/libhdf5.so.103
#5  0x00007f72e1fa2a17 in H5B__iterate_helper () from /home/geeta/anaconda3/envs/ncl_stable/bin/../lib/libhdf5.so.103
#6  0x00007f72e1fa3f98 in H5B_iterate () from /home/geeta/anaconda3/envs/ncl_stable/bin/../lib/libhdf5.so.103
#7  0x00007f72e207906d in H5G__stab_iterate () from /home/geeta/anaconda3/envs/ncl_stable/bin/../lib/libhdf5.so.103
#8  0x00007f72e2075aac in H5G__obj_iterate () from /home/geeta/anaconda3/envs/ncl_stable/bin/../lib/libhdf5.so.103
#9  0x00007f72e206cf95 in H5G_visit () from /home/geeta/anaconda3/envs/ncl_stable/bin/../lib/libhdf5.so.103
#10 0x00007f72e20a76bf in H5Lvisit_by_name () from /home/geeta/anaconda3/envs/ncl_stable/bin/../lib/libhdf5.so.103
#11 0x000055e2dde5a966 in H5OpenFile ()
#12 0x000055e2dddf0a86 in _NclAdvancedFileCreate ()
#13 0x000055e2dddd47a5 in _NclOpenFile ()
#14 0x000055e2ddecc936 in _NclIAddFile ()
#15 0x000055e2ddea4da5 in CallINTRINSIC_FUNC_CALL ()
#16 0x000055e2ddeaf37d in _NclExecute ()
#17 0x000055e2ddd835fb in yyparse ()
#18 0x000055e2ddd78020 in NclDriver ()
#19 0x00007f72df8740b3 in __libc_start_main (main=0x55e2ddd746d0 <main>, argc=3, argv=0x7ffc63c11c08, init=<optimized out>, 
    fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffc63c11bf8) at ../csu/libc-start.c:308
#20 0x000055e2ddd74701 in _start ()
(gdb) 



Geeta. 

    On Saturday, 28 August, 2021, 10:44:21 pm IST, Rick Brownrigg <brownrig at ucar.edu> wrote:  
 
 HI,
I was able to open that file just fine, on a Mac, using 6.6.2.  Do you know if you're getting the core dump when you try to open the file (addfile())?  Or trying to access a particular variable?
The core file can be used with gdb to look at what was happening at the time of the SEGV:
     gdb ncl core     gdb>  bt       # should print the stack at the time of crash
That said, I don't know that it will help you much without access to the source code. I'd be curious however where the failure is occurring.
Rick

On Sat, Aug 28, 2021 at 8:00 AM Geeta Geeta via ncl-talk <ncl-talk at mailman.ucar.edu> wrote:

Dear sir. 
I am using ncl version 6.6.2 in the CONDA enviornment. 
I am unable to use the command of ncl like ncl_filedump, addfile etc in this enviornment as I am getting core dump. esp when I run it on my h5 data files. 
I have already uploaded the h5 file (data file) on the ftp server. 

Copyright (C) 1995-2019 - All Rights Reserved University Corporation for Atmospheric Research
 NCAR Command Language Version 6.6.2

ncl_filedump 3DIMG_01AUG2020_0300_L1B_STD.h5 Copyright (C) 1995-2019 - All Rights Reserved
 University Corporation for Atmospheric Research
 NCAR Command Language Version 6.6.2
 The use of this software is governed by a License Agreement.
 See http://www.ncl.ucar.edu/ for more details.
Segmentation fault (core dumped)

I donot know how to debug the generated "core file" to know what is wrong. 

Request you to help me. 


Geeta._______________________________________________
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