[petsc-users] Reshape a 3D array into Matrix?

[Manuel Valera]

Hi petsc devs and users,

Is there an analogue to reshape as in the fortran / matlab functions for
petsc arrays? i am looking into converting a 3D DMDA array of (nx,ny,nz)
sizes into a 2D MATMPI matrix of size (nx) x (ny) x (nz) by (nx) x (ny) x
(nz), that will be used as the laplacian matrix in a linear solver, which
will change in every iteration, so is easier to calculate in 3D and convert.

Thanks for your help,
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