Hi,
I met an error when running MTXBUILD to build an I/O API sparse-matrix output file for the transform matrix. The log is shown below:
This program uses the EPA-AREAL/MCNC-EnvPgms/BAMS Models-3
I/O Applications Programming Interface, [I/O API] which is
built on top of the netCDF I/O library (Copyright 1993, 1996
University Corporation for Atmospheric Research/Unidata
Program) and the PVM parallel-programming library (from
Oak Ridge National Laboratory).
Copyright (C) 1992-2002 MCNC,
(C) 1992-2018 Carlie J. Coats, Jr.,
(C) 2003-2012 Baron Advanced Meteorological Systems, LLC, and
(C) 2014-2021 UNC Institute for the Environment.
Released under the GNU LGPL License, version 2.1. See URL
https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
for conditions of use.
ioapi-3.2: $Id: init3.F90 200 2021-05-10 14:06:20Z coats $
Version with PARMS3.EXT/PARAMETER::MXVARS3= 2048
netCDF version 4.8.0 of Jun 3 2021 20:12:25 $
Missing environment variable EXECUTION_ID
Program MTXBUILD to build a sparse (grid-to-grid transform)
file from an ASCII "fractions" file with lines having the
following fields
output grid row number
output grid col number
input grid row number
input grid col number
fraction: AREA(input-cell intersect output-cell)
/ AREA(input-cell)
These lines should be sorted into lexicographic order
relative to the first four fields.
See URL
https://www.cmascenter.org/ioapi/documentation/3.1/html#tools
Program copyright (C) 1992-2002 MCNC, (C) 1995-2013
Carlie J. Coats, Jr., and (C) 2002-2010 Baron Advanced
Meteorological Systems, LLC. Released under Version 2
of the GNU General Public License. See enclosed GPL.txt, or
URL http://www.gnu.org/copyleft/gpl.html
Comments and questions are welcome and can be sent to
Carlie J. Coats, Jr. carlie@jyarborough.com
or
UNC Institute for the Environment
137 E. Franklin St. Suite 602 Room 613-C
Campus Box 1105
Chapel Hill, NC 27599-1105
Program version:
$Id:: mtxbuild.f 435 2016-11-22 18:10:58Z coats $
Value for PROMPTFLAG not defined;returning default: TRUE
Continue with program? (Y/N) [Y] >>
Returning default value TRUE for query:
"Continue with program?"
Value for PROMPTFLAG not defined;returning default: TRUE
Enter logical name for input "fractions" file [FRACTIONS] >>coef
File "coef" opened for input on unit: 99
/public/data/emission/tools/grd2grd/scripts/27to36.qgis.txt
Input grid "M_27_08CHINA"
Value for PROMPTFLAG not defined;returning default: TRUE
Enter output grid name ["BAR"] >>zj36
Using response "zj36"
File "GRIDDESC" opened for input on unit: 98
/public/data/emission/tools/grd2grd/scripts/GRIDDESC.txt
Value for PROMPTFLAG not defined;returning default: TRUE
Enter name for output SPARSE MATRIX file [MATRIX_FILE] >>outfile
Value for IOAPI_CHECK_HEADERS not defined;returning default: FALSE
Value for IOAPI_OFFSET_64 not defined;returning default: TRUE
Value for IOAPI_CFMETA not defined;returning default: FALSE
Value for IOAPI_CMAQMETA not defined; returning defaultval ': 'NONE'
Value for IOAPI_CMAQMETA not defined; returning defaultval ': 'NONE'
Value for IOAPI_SMOKEMETA not defined; returning defaultval ': 'NONE'
Value for IOAPI_SMOKEMETA not defined; returning defaultval ': 'NONE'
Value for IOAPI_TEXTMETA not defined; returning defaultval ': 'NONE'
Value for IOAPI_TEXTMETA not defined; returning defaultval ': 'NONE'
Error creating netCDF variable COL-COUNT
netCDF error number -47 processing file "outfile"
NetCDF: NC_UNLIMITED in the wrong index
Could not open file "outfile".
Try again? (Y/N) [Y] >>N
Returning value FALSE for query:
"Try again?"
*** ERROR ABORT in subroutine MTXBUILD
Ending program "MTXBUILD".
The environment variable outfile is set to “/public/data/emission/tools/grd2grd/scripts/27to36.qgis.nc” and I have the permission to write in the directory.
I have no idea what’s wrong with it.
The attachments are my input fraction file and GRIDDESC file.
27to36.qgis.txt (3.0 MB)
GRIDDESC.txt (382 Bytes)
Generally, you can find the netCDF errors list here: https://cjcoats.github.io/ioapi/ERRORS.html#ncf331
For -47, we find:
nceunlim = nf_eunlimpos = -47: ncunlimited in the wrong index: Could be caused by incorrectly-set (or un-set) grid dimensions NCOLS3D, NROWS3D, NLAYS3D, or NTHIK3D…
Error creating netCDF variable COL-COUNT further suggests that the matrix’s column-dimension is bad, and looking at the code, my suspicion is that something is wrong with the input-file or how it is being read.
Thanks for your reply.
I think maybe the code has a bug.
I add a few WRITE statements in m3tools/mtxbuild.f to see the values of the variables.
234 WRITE(*,*) "NCOLS3D"
235 WRITE(*,*) NCOLS3D
236 WRITE(*,*) "NROWS3D"
237 WRITE(*,*) NROWS3D
238 WRITE(*,*) "MCOEF"
239 WRITE(*,*) MCOEF
240 WRITE(*,*) "MROWS"
241 WRITE(*,*) MROWS
And it shows like this:
NCOLS3D
0
NROWS3D
0
MCOEF
118665
MROWS
0
So I think there is something wrong with the code.
218 NCOL1 = NCOLS3D
...
231 NCOL2 = NCOLS3D
232 MROWS = NCOLS3D * NROWS3D
NCOLS3D and NROWS3D are not assigned with a value in the code.
However, I do not understand the sparse matrix data type well. So I do not know how to fix it.
I guess the variable MROWS is equal to NCOLS3D * NROWS3D of output grid. So I tried revising the code (the left is original and the right is revised):
218c218
< NCOL1 = NCOLS3D
---
> C NCOL1 = NCOLS3D
231,232c231,232
< NCOL2 = NCOLS3D
< MROWS = NCOLS3D * NROWS3D
---
> C NCOL2 = NCOLS3D
> MROWS = NCOLS2 * NROWS2
Besides, I fixed another little bug in getting output grid name.
181,182c181,182
< ELSE IF ( LINE( 1:7 ) .EQ. '#OUTGRID' ) THEN
< V = 8 + LBLANK( LINE( 8:256 ) )
---
> ELSE IF ( LINE( 1:8 ) .EQ. '#OUTGRID' ) THEN
> V = 9 + LBLANK( LINE( 9:256 ) )
And I tested the revised code, the log is shown below:
This program uses the EPA-AREAL/MCNC-EnvPgms/BAMS Models-3
I/O Applications Programming Interface, [I/O API] which is
built on top of the netCDF I/O library (Copyright 1993, 1996
University Corporation for Atmospheric Research/Unidata
Program) and the PVM parallel-programming library (from
Oak Ridge National Laboratory).
Copyright (C) 1992-2002 MCNC,
(C) 1992-2018 Carlie J. Coats, Jr.,
(C) 2003-2012 Baron Advanced Meteorological Systems, LLC, and
(C) 2014-2021 UNC Institute for the Environment.
Released under the GNU LGPL License, version 2.1. See URL
https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
for conditions of use.
ioapi-3.2: $Id: init3.F90 200 2021-05-10 14:06:20Z coats $
Version with PARMS3.EXT/PARAMETER::MXVARS3= 2048
netCDF version 4.8.0 of Jun 3 2021 20:12:25 $
Missing environment variable EXECUTION_ID
Program MTXBUILD to build a sparse (grid-to-grid transform)
file from an ASCII "fractions" file with lines having the
following fields
output grid row number
output grid col number
input grid row number
input grid col number
fraction: AREA(input-cell intersect output-cell)
/ AREA(input-cell)
These lines should be sorted into lexicographic order
relative to the first four fields.
See URL
https://www.cmascenter.org/ioapi/documentation/3.1/html#tools
Program copyright (C) 1992-2002 MCNC, (C) 1995-2013
Carlie J. Coats, Jr., and (C) 2002-2010 Baron Advanced
Meteorological Systems, LLC. Released under Version 2
of the GNU General Public License. See enclosed GPL.txt, or
URL http://www.gnu.org/copyleft/gpl.html
Comments and questions are welcome and can be sent to
Carlie J. Coats, Jr. carlie@jyarborough.com
or
UNC Institute for the Environment
137 E. Franklin St. Suite 602 Room 613-C
Campus Box 1105
Chapel Hill, NC 27599-1105
Program version:
$Id:: mtxbuild.f 435 2016-11-22 18:10:58Z coats $
Value for PROMPTFLAG not defined;returning default: TRUE
Continue with program? (Y/N) [Y] >>
Returning default value TRUE for query:
"Continue with program?"
Value for PROMPTFLAG not defined;returning default: TRUE
Enter logical name for input "fractions" file [FRACTIONS] >>coef
File "coef" opened for input on unit: 99
/public/data/emission/tools/grd2grd/scripts/27to36.matrix.txt
Value for PROMPTFLAG not defined;returning default: TRUE
Enter input grid name ["FOO"] >>M_27_08CHINA
Using response "M_27_08CHINA"
Enter output grid name ["BAR"] >>zj36
Using response "zj36"
File "GRIDDESC" opened for input on unit: 98
/public/data/emission/tools/grd2grd/scripts/GRIDDESC.txt
MROWS
22816
MCOEF
117675
Value for PROMPTFLAG not defined;returning default: TRUE
Enter name for output SPARSE MATRIX file [MATRIX_FILE] >>outfile
Value for IOAPI_CHECK_HEADERS not defined;returning default: FALSE
Value for IOAPI_OFFSET_64 not defined;returning default: TRUE
Value for IOAPI_CFMETA not defined;returning default: FALSE
Value for IOAPI_CMAQMETA not defined; returning defaultval ': 'NONE'
Value for IOAPI_CMAQMETA not defined; returning defaultval ': 'NONE'
Value for IOAPI_SMOKEMETA not defined; returning defaultval ': 'NONE'
Value for IOAPI_SMOKEMETA not defined; returning defaultval ': 'NONE'
Value for IOAPI_TEXTMETA not defined; returning defaultval ': 'NONE'
Value for IOAPI_TEXTMETA not defined; returning defaultval ': 'NONE'
"outfile" opened as UNKNOWN(R-W)
File name "/public/data/emission/tools/grd2grd/scripts/27to36.matrix.test.nc"
File type SMATRX3
Execution ID "????????????????"
Grid name "zj36"
Dimensions: 22816 rows, 117675 cols, 1 lays, 1 vbles
NetCDF ID: 65536 opened as READWRITE
Time-independent data.
Value for IOAPI_LOG_WRITE not defined;returning default: TRUE
Record written to outfile
--->> Normal Completion of program MTXBUILD
Success in program MTXBUILD
forrtl: severe (174): SIGSEGV, segmentation fault occurred
Image PC Routine Line Source
mtxbuild 00000000004FA74A Unknown Unknown Unknown
libpthread-2.28.s 0000149733E72B20 Unknown Unknown Unknown
mtxbuild 00000000006605CD Unknown Unknown Unknown
mtxbuild 00000000005FB335 Unknown Unknown Unknown
mtxbuild 00000000005FB16F Unknown Unknown Unknown
mtxbuild 00000000005BE8D6 Unknown Unknown Unknown
libc-2.28.so 0000149731FD7B0C Unknown Unknown Unknown
libc-2.28.so 0000149731FD7C40 on_exit Unknown Unknown
mtxbuild 00000000004F954F Unknown Unknown Unknown
mtxbuild 000000000042CA1D m3exit_ 119 m3exit.F
mtxbuild 0000000000407D68 MAIN__ 333 mtxbuild.f
mtxbuild 0000000000405DA2 Unknown Unknown Unknown
libc-2.28.so 0000149731FC1493 __libc_start_main Unknown Unknown
mtxbuild 0000000000405CAE Unknown Unknown Unknown
The generated sparse matrix netCDF file is all zero.
This revision does not solve the problem.
I finally find that the matrix’s dimension is not assigned correctly in the code. I fix it and create a pull request in github of ioapi.
Hello Group,
I am having a similar problem. Does anyone have a GRIDDESC and FRACTION file that works that they could share with me to confirm I have installed MTXBUILD correctly. Thanks.
Cheers,
David
Hi Pengzimu,
Can you share your experience of how to fix this error? I meet the same problem when using mtxbuild.
Thanks.