Merge branch 'rlwalker/feature-plex-example-poroelasticity-cryer' into 'master'

Rlwalker/feature plex example poroelasticity cryer

See merge request petsc/petsc!3013

ConvEst: Now use -ts_convergence_temporal 0 to check spatial convergence of a TS model
- Added argument to PetscConvEstUseTS()

Merge branch 'knepley/feature-plex-ts-checks' into 'master'

TS+Plex: Convergence estimation now working of time dependent PDEs

See merge request petsc/petsc!2985

TS+Plex: Convergence estimation now working of time dependent PDEs
- Add exact solution time derivative to DS
- Put monitor in ConvEst for TS
- Fixed error determination in ConvEst for TS

Co-Authore

TS+Plex: Convergence estimation now working of time dependent PDEs
- Add exact solution time derivative to DS
- Put monitor in ConvEst for TS
- Fixed error determination in ConvEst for TS

Co-Authored-By: Brad Aagaard <baagaard@usgs.gov>

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Merge branch 'knepley/feature-convest-ts' into 'master'

Knepley/feature convest ts

See merge request petsc/petsc!2190

TS+ConvEst: Made suggested improvements
- Renamed initialGuess to initialConditions
- Made refinement factor usable settable, but still only support 2 for
space

ConvEst: Generalize to use TS as well
- Now the solver is a PetscObject
- ts_convergence_estimate calculates the order for a TS method
- Added tsconvest.c
- Added initial guess and error methods that

ConvEst: Generalize to use TS as well
- Now the solver is a PetscObject
- ts_convergence_estimate calculates the order for a TS method
- Added tsconvest.c
- Added initial guess and error methods that can be overridden

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