Writing to subsequent history files in ROMS 3.4

[Johannes]

Using ROMS 3.4 (r550), I have the problem that the history output file is not getting initialized when I specify NDEFHS != 0 (writing the output to subsequent history files).

The error I get looks like this:

Code: Select all

NETCDF_PUT_FVAR_1D - error while writing variable:  ocean_time
                      in input file:  ocean_his.nc
                      call from:  wrt_his.F

ERROR: Abnormal termination: NetCDF OUTPUT.
REASON: NetCDF: Not a valid ID             

This has worked with ROMS 3.2 and the problem doesn't appear if the output is written to one single history file. I have updated my ocean.in file for ROMS 3.4. I told ROMS to output ncHISid(ng), which turned out to be -1 just before writing to the file. I guess this shouldn't be ? It seems like the file is not getting created.

Are there any further parameters or cpp options I have to set to be able to write to subsequent output files since ROMS 3.4?

[Johannes]

Does anyone know if this problem could be related to:
https://www.myroms.org/projects/src/ticket/510 ?

[kate]

What is your NDEFHIS and what timestep are you trying to restart on? I'm not having a problem if I create a new history file for each history record.

[Johannes]

I use:

NDEFHIS=1440

and do not restart the model. This still works with ROMS 3.2. with no other changes than the ROMS version.

I updated the ocean.in file but not the makefile. could this be a problem?

[kate]

Have you updated since that trac ticket was fixed?

[Johannes]

No, I didn't update to ROMS 3.5 because 3.4 was announced to be stable and 3.5 has gotten "major changes". However, I'll try that later on and will report if it helps.

[arango]

Not enough information is provided here for us to diagnose what it is going on. These is an ouput problem. I don't understand the attempt to change ocean_time. This doesn't have nothing to so with the error. It is telling you that cannot write to the history file because ncid is not a valid file NetCDF ID. Probably, the file has not been created yet. You must be doing something wrong. More details needs to be provided to see if we can reproduce the problem.

In major updates of ROMS we need to update everything including input scripts, header files, analytical files, makefile, build script, etc. I have mentioned several times that user should not modify the makefile to compile the application. Everybody should use the build script instead. This is very clear in wikiROMS. I assume that we are going to repeat this over and over...