[petsc-users] Transpose of Block Matrix with aij type

[Jed Brown]

On Wed, Apr 24, 2013 at 10:45 AM, Joon hee Choi <choi240 at purdue.edu> wrote:

> Actually, B is very huge(more than 10^10) and sparse(about 1% dense).


(10^{10})^2 * 1% = 10^{18} which is probably not a quantity of memory that
you have available.  So either the matrix is much smaller than 10^{10} or
it's much less than 1% dense.
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