[petsc-users] How to force the code run with a given number of iterations?

[Fande Kong]

Hi all,

How to force the code run with a given number of iterations?

I use the following script to run code, but the code stop after doing
*two*iterations:

* mpirun -n 2 ./linearElasticity  -ksp_type gmres -pc_type asm
-pc_asm_overlap 1 -sub_pc_type ilu -sub_pc_factor_levels 2 -sub_ksp_type
preonly -sub_pc_factor_mat_ordering_type rcm -ksp_view - -ksp_rtol 1e-5
-ksp_max_it 500 -ksp_monitor -ksp_monitor_singular_value*

The residual history is listed as follows:

*  0 KSP Residual norm 9.732477596672e+31
  0 KSP Residual norm 9.732477596672e+31 % max 1.000000000000e+00 min
1.000000000000e+00 max/min 1.000000000000e+00
  1 KSP Residual norm 8.532845325800e+31
  1 KSP Residual norm 8.532845325800e+31 % max 4.821161757157e+55 min
4.821161757157e+55 max/min 1.000000000000e+00
  2 KSP Residual norm 3.648279603061e+23
  2 KSP Residual norm 3.648279603061e+23 % max 1.234581012401e+79 min
2.318814661396e+55 max/min 5.324190125905e+23
*
 The residual is not small enough to stop.


Thanks,

Fande Kong,
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