[FLASH-USERS] [gr_hypreSolve]: Nonconv./failure ierr=1, descr=[Generic error]&[RadTrans] ***** ERROR DETECTED IN Diffuse_solveScalar !!! ****

[cya_ at nudt.edu.cn]

Dear FLASH Users,

I encountered some problems in the simulation of direct-drive ICF. After running the code, I saw the follows in the output file. 

[gr_hypreSolve]: Nonconv./failure ierr=1, descr=[Generic error], group no=1, converged=F, |initial RHS|^2=NaN, num_iterations=0, final_res_norm=0.0000000000000000
 [RadTrans] ***** ERROR DETECTED IN Diffuse_solveScalar !!! ****             -1              1              3              1              1              0 F     0
[gr_hypreSolve]: Nonconv./failure ierr=1, descr=[Generic error], group no=2, converged=F, |initial RHS|^2=NaN, num_iterations=0, final_res_norm=0.0000000000000000
 [RadTrans] ***** ERROR DETECTED IN Diffuse_solveScalar !!! ****             -1              2              3              1              1              0 F     0
[gr_hypreSolve]: Nonconv./failure ierr=1, descr=[Generic error], group no=3, converged=F, |initial RHS|^2=NaN, num_iterations=0, final_res_norm=0.0000000000000000
 [RadTrans] ***** ERROR DETECTED IN Diffuse_solveScalar !!! ****             -1              3              3              1              1              0 F     0
[gr_hypreSolve]: Nonconv./failure ierr=1, descr=[Generic error], group no=4, converged=F, |initial RHS|^2=NaN, num_iterations=0, final_res_norm=0.0000000000000000
 [RadTrans] ***** ERROR DETECTED IN Diffuse_solveScalar !!! ****             -1              4              3              1              1              0 F     0
[gr_hypreSolve]: Nonconv./failure ierr=1, descr=[Generic error], group no=5, converged=F, |initial RHS|^2=NaN, num_iterations=0, final_res_norm=0.0000000000000000
 [RadTrans] ***** ERROR DETECTED IN Diffuse_solveScalar !!! ****             -1              5              3              1              1              0 F     0
[gr_hypreSolve]: Nonconv./failure ierr=1, descr=[Generic error], group no=6, converged=F, |initial RHS|^2=NaN, num_iterations=0, final_res_norm=0.0000000000000000
 [RadTrans] ***** ERROR DETECTED IN Diffuse_solveScalar !!! ****             -1              6              3              1              1              0 F     0
       n          t         dt  (         x,          y,          z) |  dt_hydro  dt_Diff   dt_HeatXc
       1 1.0000E-12 1.1000E-12  ( 0.468    ,  0.294    ,   0.00    ) |  6.516E-08 1.645E+84 1.567+103



I want to know why these occur. Any possible suggestions would be great appreciated!

Best wishes, 
Yunan Chen
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