[petsc-dev] MatAssembly and VecAssembly

[Kong, Fande]

Hi All,

In Mat/VecAssemblyBegin/End, why we do not check if or not mat/vec is
assembled. If mat/vec is already assembled, should we just return without
doing anything?

I think we have some particular reasons not to check if the matrix is
assembled. I honestly do not know why.

Thanks,

Fande,
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