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[1807580692]

Hello, I have encountered some problems. Here are some of my configurations.
OS Version and Type:  Linux daihuanhe-Aspire-A315-55G 5.15.0-89-generic #99~20.04.1-Ubuntu SMP Thu Nov 2 15:16:47 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux
PETSc Version: #define PETSC_VERSION_RELEASE    1
		#define PETSC_VERSION_MAJOR      3
		#define PETSC_VERSION_MINOR      19
		#define PETSC_VERSION_SUBMINOR   0
		#define PETSC_RELEASE_DATE       "Mar 30, 2023"
		#define PETSC_VERSION_DATE       "unknown"
MPI implementation: MPICH	
Compiler and version: Gnu C
The problem is when I type 
“mpiexec -n 4 ./ex19 -lidvelocity 100 -prandtl 0.72 -grashof 10000 -da_grid_x 64 -da_grid_y 64 -snes_type newtonls -ksp_type gmres -pc_type fieldsplit -pc_fieldsplit_type symmetric_multiplicative -pc_fieldsplit_block_size 4 -pc_fieldsplit_0_fields 0,1,2,3 -pc_fieldsplit_1_fields 0,1,2,3 -fieldsplit_0_pc_type asm -fieldsplit_0_pc_asm_type restrict -fieldsplit_0_pc_asm_overlap 5 -fieldsplit_0_sub_pc_type lu -fieldsplit_1_pc_type asm -fieldsplit_1_pc_asm_type restrict -fieldsplit_1_pc_asm_overlap 5 -fieldsplit_1_sub_pc_type lu  -snes_monitor -snes_converged_reason -fieldsplit_0_ksp_atol 1e-10  -fieldsplit_1_ksp_atol 1e-10  -fieldsplit_0_ksp_rtol 1e-6  -fieldsplit_1_ksp_rtol 1e-6 -fieldsplit_0_snes_atol 1e-10  -fieldsplit_1_snes_atol 1e-10  -fieldsplit_0_snes_rtol 1e-6  -fieldsplit_1_snes_rtol 1e-6”
in the command line, where my path is /petsc/src/snes/tutorials.


It returns 
“WARNING! There are options you set that were not used!
WARNING! could be spelling mistake, etc!
There are 8 unused database options. They are:
Option left: name:-fieldsplit_0_ksp_atol value: 1e-10 source: command line
Option left: name:-fieldsplit_0_ksp_rtol value: 1e-6 source: command line
Option left: name:-fieldsplit_0_snes_atol value: 1e-10 source: command line
Option left: name:-fieldsplit_0_snes_rtol value: 1e-6 source: command line
Option left: name:-fieldsplit_1_ksp_atol value: 1e-10 source: command line
Option left: name:-fieldsplit_1_ksp_rtol value: 1e-6 source: command line
Option left: name:-fieldsplit_1_snes_atol value: 1e-10 source: command line
Option left: name:-fieldsplit_1_snes_rtol value: 1e-6 source: command line”.
Please tell me what should I do?Thank you very much.


1807580692
1807580692 at qq.com



 
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