[petsc-users] VecMTDot vs MatMult

[Phanisri Pradeep Pratapa]

Hi,

I am trying to find out the product of a rectangular dense matrix and a
vector. Could you please let me know if forming the rectangular matrix as
an array of Vecs and then using VecMTDot is better (or worse/similar) than
doing MatMult? (In both cases the matrix and the vectors are parallely
distributed)

Thank you,

Regards,

Pradeep
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