[petsc-users] Modification of a routine

[Barry Smith]

  Use the debugger and step through the code to verify it is getting to those lines.

   Barry

On Apr 4, 2011, at 9:54 PM, Gaurish Telang wrote:

> Hi,
> 
> I have tried to implement a recent least squares algorithm called LSMR, by making modifications in the file  src/ksp/ksp/impls/lsqr/lsqr.c 
> 
> Is it necessary to make any changes in other PETSc files or build the PETSc library again? 
> 
> I solved a simple least squares problem by supplying the flags -ksp_type lsqr  -pc_type none and the problem seems to get solved correctly. 
> 
> However, I had placed a couple of PetscPrintf statements inside the main do-while loop of the algorithm in lsqr.c  but those statements are not getting printed to standard output. 
> 
> Thanks,
> 
> Gaurish.