Hi Hong,
The binary format of matrix, rhs and solution can be downloaded via the
link below.
https://www.dropbox.com/s/cl3gfi0s0kjlktf/matrix_and_rhs_bin.tar.gz?dl=0
Thanks,
Danyang
On 15-12-03 10:50 AM, Hong wrote:
Danyang:
To my surprising, solutions from SuperLU at timestep 29 seems not
correct for the first 4 Newton iterations, but the solutions from
iteration solver and MUMPS are correct.
Please find all the matrices, rhs and solutions at timestep 29 via
the link below. The data is a bit large so that I just share it
through Dropbox. A piece of matlab code to read these data and
then computer the norm has also been attached.
_https://www.dropbox.com/s/rr8ueysgflmxs7h/results-check.tar.gz?dl=0_
Can you send us matrix in petsc binary format?
e.g., call MatView(M, PETSC_VIEWER_BINARY_(PETSC_COMM_WORLD))
or '-ksp_view_mat binary'
Hong
Below is a summary of the norm from the three solvers at timestep
29, newton iteration 1 to 5.
Timestep 29
Norm of residual seq 1.661321e-09, superlu 1.657103e+04, mumps
3.731225e-11
Norm of residual seq 1.753079e-09, superlu 6.675467e+02, mumps
1.509919e-13
Norm of residual seq 4.914971e-10, superlu 1.236362e-01, mumps
2.139303e-17
Norm of residual seq 3.532769e-10, superlu 1.304670e-04, mumps
5.387000e-20
Norm of residual seq 3.885629e-10, superlu 2.754876e-07, mumps
4.108675e-21
Would anybody please check if SuperLU can solve these matrices?
Another possibility is that something is wrong in my own code. But
so far, I cannot find any problem in my code since the same code
works fine if I using iterative solver or direct solver MUMPS. But
for other cases I have tested, all these solvers work fine.
Please let me know if I did not write down the problem clearly.
Thanks,
Danyang
