Hi
I have restructured my matrix eigenvalue problem to see why B is singular
as you suggested by changing the governing equations in different form.
Now my matrix B is not singular. Both A and B are invertible in Ax=lambda
Bx.
Still I receive error in MUMPS as it uses large memory (attached is
Venkatesh,
You may also test superlu_dist, which may use less memory.
Hong
On Mon, Jun 22, 2015 at 12:43 PM, Barry Smith bsm...@mcs.anl.gov wrote:
There is nothing we can really do to help on the PETSc side. I do note
from the output
REDISTRIB: TOTAL DATA LOCAL/SENT = 328575589
There is nothing we can really do to help on the PETSc side. I do note from
the output
REDISTRIB: TOTAL DATA LOCAL/SENT = 328575589 1437471711
GLOBAL TIME FOR MATRIX DISTRIBUTION =206.6792
** Memory relaxation parameter ( ICNTL(14) ):35
** Rank of
Hi all,
I tried to run my Generalized Eigenproblem in 120 x 24 = 2880 cores.
The matrix size of A = 20GB and B = 5GB.
It got killed after 7 Hrs of run time. Please see the mumps error log. Why
must it fail ?
I gave the command:
aprun -n 240 -N 24 ./ex7 -f1 a110t -f2 b110t -st_type sinvert
It failed due to a lack of memory. OOM stands for out of memory. OOM
killer terminated your job means you ran out of memory.
On Sunday, 31 May 2015, venkatesh g venkateshg...@gmail.com
javascript:_e(%7B%7D,'cvml','venkateshg...@gmail.com'); wrote:
Hi all,
I tried to run my Generalized
Sorry the command was:
aprun -n 2880 -N 24 ./ex7 -f1 a110t -f2 b110t -st_type sinvert -eps_nev 1
-st_ksp_type preonly -st_pc_type lu -st_pc_factor_mat_solver_package mumps
-mat_mumps_cntl_1 1e-6 -mat_mumps_icntl_4 2
cheers,
Venkatesh
On Sun, May 31, 2015 at 6:07 PM, venkatesh g
venkatesh,
As we discussed previously, even on smaller problems,
both mumps and superlu_dist failed, although Mumps gave OOM error in
numerical factorization.
You acknowledged that B is singular, which may need additional
reformulation for your eigenvalue problems. The option '-st_type sinvert'
On Tue, May 26, 2015 at 9:02 PM, Hong hzh...@mcs.anl.gov wrote:
'A serial job in MATLAB for the same matrices takes 60GB. '
Can you run this case in serial? If so, try petsc, superlu or mumps to
make sure the matrix is non-singular.
B matrix is singular but I get my result in Petsc and Mumps
venkatesh:
On Tue, May 26, 2015 at 9:02 PM, Hong hzh...@mcs.anl.gov wrote:
'A serial job in MATLAB for the same matrices takes 60GB. '
Can you run this case in serial? If so, try petsc, superlu or mumps to
make sure the matrix is non-singular.
B matrix is singular but I get my result in
'A serial job in MATLAB for the same matrices takes 60GB. '
Can you run this case in serial? If so, try petsc, superlu or mumps to make
sure the matrix is non-singular.
Both mumps and superlu_dist show crash in MatFactorNumeric(). Mumps gives
error
[16]PETSC ERROR: Error reported by MUMPS in
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