Do not add terms to PETSc matrix if the value is 0. This helps with problems where there are many terms added which are 0; usually, it would need allocated space and structure if you MatSetValues, even with a 0 value.
Do not add terms to PETSc matrix if the value is 0. This helps with problems where there are many terms added which are 0; usually, it would need allocated space and structure if you MatSetValues, even with a 0 value.

0tt3r/QuaC,0tt3r/QuaC,0tt3r/QuaC