Mark,
I compared the eigen estimates and they were identical. I found an issue
that was somehow miraculously covered up by -random_seed 1 for 10,000
matrix solves. I was initially sent on a wild chase by noting a strong
behavior difference between DIFFERENT_NONZERO_PATTERN and
SAME_PRECONDITIONER,
Inge,
We will need the entire error message to know what the issue is. The
--with-is-color-value=short should be fine and is not likely the cause of the
problem.
Barry
On Jul 12, 2013, at 4:17 AM, Inge Gutheil wrote:
> Hello,
> sorry, I do not use PETSc, I only installl it for those
>
>
> if (set) {
>ierr = PetscRandomSetSeed(rnd,(unsigned long int)seed);CHKERRQ(ierr);
>ierr = PetscRandomSeed(rnd);CHKERRQ(ierr);
> }
>
> Otherwise the default seed is used, but that changes for repeat solves.
OK, right I see.
Anyway it is bad that the code is sensitive to the r
http://www.mcs.anl.gov/petsc/documentation/faq.html#efficient-assembly
On Jul 12, 2013, at 8:46 AM, "Salko, Robert K." wrote:
> I'm attempting to implement PETSc for the parallel solution of a large sparse
> matrix in a computer program I work with. The program is written in Fortran.
> I curr
I'm attempting to implement PETSc for the parallel solution of a large sparse
matrix in a computer program I work with. The program is written in Fortran. I
currently have been able to get the program working using PETSc and giving
correct results, but the issue is its performance. It is much sl
Hello,
sorry, I do not use PETSc, I only installl it for those who want to use
it. I installed it on an BlueGene/P with the example for that machine
and now I am going to install it for BlueGene/Q and I don't see an
example file for that machine.
I had used the same arch-bgp-... file with modified
