[petsc-users] MatSetValues vs. MatSetValue

[Qin Lu]

Hello,
 
I need to set values of a sparse matrix. Is setting coefficients row by row 
using MatSetValues more efficient than setting setting coefficient one by one 
using MatSetValue? Is MatSetValues implemented by looping over each entry of 
the input array calling MatSetValue?
 
Thanks a lot for your help,
Qin