optimize by moving allowzeropivot = PetscNot(A->erroriffailure) out of loop

allow zeropivot PetscKernel_A_gets_inverse_A()

allow zeropivot in the middle of matrix for PetscKernel_A_gets_inverse_A_#

trivial cleanup

fix valgrind complain in on uninitialised value

replace !PetscBool with PetscNot(a)

set value for output zeropivotdetected in PetscKernel_A_gets_inverse_A_#

add allowzeropivot and zeropivotdetected to PetscKernel_A_gets_inverse_A_15

add allowzeropivot and zeropivotdetected to PetscKernel_A_gets_inverse_A_#

enable zeropivot for pbjacobi, bs=3, baij matrix

rename crash and wouldcrash -> allowzeropivot and zeropivotdetected as suggested by Barry

add 'PetscBool crash,PetscBool *wouldcrash' to PetscKernel_A_gets_inverse_A_3() to handle zeropivot error

Merge branch 'hzhang/matpackage-erroriffpe'

more Revert "replace 'const MatFactorInfo' to 'MatFactorInfo' in MatFactor routines"

add "Mat fact" as an input to MatPivotCheck() for setting errortype into matrix fact

added many checks for integer overflow in symbolic factorization and symbolic matrix matrix multiplication

bugfix for build

add enum 'MatFactorError' to handle error type for matrix factor; replace 'const MatFactorInfo' to 'MatFactorInfo' in MatFactor routines

Merge branch 'master' into barry/petscoptions-object

Merge remote-tracking branch 'origin/hzhang/matmatmult_dense'

Complete update to new PetscOptions interface

add MAT_INPLACE_MATRIX; replace MAT_REUSE_MATRIX with it for MatConvert()

Merge branch 'barry/add-mpiu_allreduce'

Merge branch 'barry/fix-ts-matshift-error'

Introduce MPIU_Allreduce() to detect cases where all processes that share an MPI comm do not call the same sequence of MPI_Allreduce()
This is a bug that can be difficult to track down.

Suggested-by

Introduce MPIU_Allreduce() to detect cases where all processes that share an MPI comm do not call the same sequence of MPI_Allreduce()
This is a bug that can be difficult to track down.

Suggested-by: Eric Chamberland <Eric.Chamberland@giref.ulaval.ca>
Suggested-by: Patrick Lacasse <placasse@giref.ulaval.ca>

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