MatMatMult

[Waad Subber]

Hi 

I want to multiply two sparse sequential matrices. In order to do that I think I should use MatMatMult ; however,  I need the expected fill ratio which I don't know in advance. 

For matrix A and matrix B I might get the nnz(A) and nnz(B) from MatGetInfo. What about nnz(C) ? 

Thanks

Waad



       
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