emtarouilly
New member
Hi,
I have been trying to run WRF using 3 nested domains at 15-3-3 km resolution (see map), i.e. the second and third nest have the same resolution. This is because I need to be able to make modifications to the output of the second domain, and then run the third domain using ndown. But before doing that with ndown, I tried just running all 3 domains at once (as normally done when not using ndown).
WRF crashes almost immediately with a segfault (see the rsl.error.0000 file attached). WPS and real seemed to run ok and produce the appropriate files.
I have tried steps that would typically help with segfault:
- Reduce the time step (down to 1 second, which seems very small)
- Increase epssm and use 6th order diffusion
- Move the innermost domain away from mountainous terrain
Is it not ok to have 2 domains at the same resolution? Or am I making a mistake elsewhere?
I have been trying to run WRF using 3 nested domains at 15-3-3 km resolution (see map), i.e. the second and third nest have the same resolution. This is because I need to be able to make modifications to the output of the second domain, and then run the third domain using ndown. But before doing that with ndown, I tried just running all 3 domains at once (as normally done when not using ndown).
WRF crashes almost immediately with a segfault (see the rsl.error.0000 file attached). WPS and real seemed to run ok and produce the appropriate files.
I have tried steps that would typically help with segfault:
- Reduce the time step (down to 1 second, which seems very small)
- Increase epssm and use 6th order diffusion
- Move the innermost domain away from mountainous terrain
Is it not ok to have 2 domains at the same resolution? Or am I making a mistake elsewhere?