[petsc-users] profiling the total time

[Jed Brown]

On Thu, Jun 16, 2011 at 11:14, khalid ashraf <khalid_eee at yahoo.com> wrote:

> When I look at the breakdown of the stages time required, the total add up
> to ~7s however, the main stage time is ~350s.


Two possibilities:

1. The time is not in PETSc.

2. The matrix is not preallocated correctly.

http://www.mcs.anl.gov/petsc/petsc-as/documentation/faq.html#efficient-assembly
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