when I running short-term simulations with WRF-Solar EPS (v4.5) driven by GFS data, the model crashed with segmentation fault at beginning. After recompiling WRF-Solar using ./configure -D and rerunning the same setup, the error changed to: forrtl: severe (408): fort: (7): Attempt to use pointer I_START when it is not associated with a target. The error seems to occur during the initialization of the stochastic perturbation scheme, but I’m unsure of the exact cause. The error message and associated code are shown in the image.


Following Issue #1545 on GitHub (Segmentation fault using random_perturb in V4.3 · Issue #1545 · wrf-model/WRF), I tried reducing lengthscale_rand_pert in the namelist, but the error remained. I comment out a part of the SUBROUTINE INITIALIZE_STOCH in the source code (as in issue #1545), the model always stops after running for a period of time.
I’ve attached my namelist.input and rsl.error files for reference. Has anyone else experienced similar issues with pointer association errors in WRF-Solar EPS? Any advice on how to resolve this properly would be greatly appreciated.


Following Issue #1545 on GitHub (Segmentation fault using random_perturb in V4.3 · Issue #1545 · wrf-model/WRF), I tried reducing lengthscale_rand_pert in the namelist, but the error remained. I comment out a part of the SUBROUTINE INITIALIZE_STOCH in the source code (as in issue #1545), the model always stops after running for a period of time.
I’ve attached my namelist.input and rsl.error files for reference. Has anyone else experienced similar issues with pointer association errors in WRF-Solar EPS? Any advice on how to resolve this properly would be greatly appreciated.