[petsc-users] How to Get the last absolute residual that has been computed

Barry Smith bsmith at mcs.anl.gov
Fri Oct 7 23:11:36 CDT 2016


  KSPGetResidualNorm() if you wish the true (and not preconditioned residual) you must call KSPSetNormType() be the KSPSolve

  SNESGetFunctionNorm()

> On Oct 7, 2016, at 10:41 PM, 丁老师 <ztdepyahoo at 163.com> wrote:
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> Dear professor:
>     How to Get the last absolute residual that has been computed
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