[FLASH-USERS] FLASH 4.8 build error: missing Grid_blockType_mod with UG grid
Subhasish Bag
subhasish.bag at apctp.org
Tue Feb 3 01:10:00 EST 2026
Dear FLASH developers and users,
I am trying to build *FLASH 4.8* with a custom simulation unit based on
*Simulation/SimulationMain/AlfvenAntenna*, using:
-
Grid: Grid/GridMain/UG
-
Hydro: physics/Hydro/HydroMain/unsplit
-
EOS: physics/Eos/EosMain/Gamma
-
Source term: physics/sourceTerms/ExternalCurrent
The setup command completes successfully:
./setup AlfvenAntenna -auto
but the build fails with:
Simulation_init.F90:50:7:
use Grid_blockType_mod
Fatal Error: Cannot open module file ‘grid_blocktype_mod.mod’
I checked the source tree and cannot find any file defining:
module Grid_blockType_mod
Commands run:
grep -R "module Grid_blockType_mod" source/Grid
find source/Grid -name "*block*"
(no matches found)
However, Simulation_init.F90 clearly requires blockType, and the UG grid is
enabled.
My questions are:
1.
Which unit in FLASH 4.8 is supposed to provide Grid_blockType_mod for
the UG grid?
2.
Is my source tree incomplete or corrupted, or has this module been
renamed in newer FLASH versions?
3.
Is Simulation/SimulationMain/AlfvenAntenna compatible with UG in FLASH
4.8?
Any guidance would be greatly appreciated.
Best regards,
*Subhasish Bag*
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