[petsc-users] Multigrid Vcycle.

[Abdul Hanan Sheikh]

Dear all, 

I am quit beginner in PETSc. 

I wrote a code for multigrid Vcycle (as preconditioer) by following the instructions on manual page. 

I want to see how much memory a Vcycle allocates by default in terms of number of matrices and vectors. 

I made a try to see by comparing with jacobi preconditioner, which surely allocates 1 vector ONLY. 

It turns out that a VCycle for FIVE (5) levels including coarsest level allocates memory for 53 vectors and 

subsequently it destroys too.

Is it normal ?? 



Thanks in advance, 

Abdul
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