[petsc-users] Error when using PCDestroy

2012-09-27 Thread TAY wee-beng
Hi, When I run a code in debug mode with -log_summary, there is no problem. However, in optimized mode, I encounter error Caught signal number 11 SEGV: Segmentation Violation, probably memory access out of range It happens at : call PCDestroy(pc_semi_x,ierr) Is there any reason why it works

[petsc-users] out-of-core mumps via petsc

2012-09-27 Thread renzhengyong
Dear Petsc users and developers, Could you please inform me that how can I use the out-of-core version of MUMPS via PETSc to solve Ax=b ? Thanks in advance Zhengyong -- next part -- An HTML attachment was scrubbed... URL:

[petsc-users] Setting initial guess for KSP solver

2012-09-27 Thread Jinquan Zhong
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[petsc-users] Setting initial guess for KSP solver

2012-09-27 Thread Jinquan Zhong
before using KSPsolve() ? I know exactly the initial guess x0 would be from other packages. Do you have an example for that? Thanks, Jinquan PS: -- next part -- An HTML attachment was scrubbed... URL: http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20120927

[petsc-users] Enquiry regarding log summary results

2012-09-27 Thread TAY wee-beng
Hi, I'm doing a log summary for my 3d cfd code. I have some questions: 1. if I'm solving 3 linear equations using ksp, is the result given in the log summary the total of the 3 linear eqns' performance? How can I get the performance for each individual eqn? 2. If I run my code for 10 time

[petsc-users] Error when using PCDestroy

2012-09-27 Thread TAY wee-beng
this error if I just run the code in debug mode without valgrind. -- Yours sincerely, TAY wee-beng -- next part -- An HTML attachment was scrubbed... URL: http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20120927/12ad2ae7/attachment.html

[petsc-users] out-of-core mumps via petsc

2012-09-27 Thread RenZhengYong
at gmail.com -- next part -- An HTML attachment was scrubbed... URL: http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20120927/6e86462d/attachment.html

[petsc-users] Fastest solver option after factorization

2012-09-27 Thread Umut Tabak
Dear all, I am doing an investigation on the fastest 'Forward backward solver' among available sparse direct solvers. I am reading on comparison report, dated 2005, namely, A numerical evaluation of sparse direct solvers for the solution of large sparse, symmetric linear systems of equations

[petsc-users] Setting initial guess for KSP solver

2012-09-27 Thread Matthew Knepley
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[petsc-users] Enquiry regarding log summary results

2012-09-27 Thread Matthew Knepley
is infinitely more interesting than any results to which their experiments lead. -- Norbert Wiener -- next part -- An HTML attachment was scrubbed... URL: http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20120927/90b2a193/attachment.html

[petsc-users] Error when using PCDestroy

2012-09-27 Thread Matthew Knepley
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[petsc-users] snes ex62.c header file

2012-09-27 Thread Klaij, Christiaan
If I understand correctly, the first step to running SNES ex62.c is to create the header file, however: $ $PETSC_DIR/bin/pythonscripts/PetscGenerateFEMQuadrature.py dim order dim 1 laplacian dim order 1 1 gradient $PETSC_DIR/src/snes/examples/tutorials/ex62.h Traceback (most recent call last):

[petsc-users] snes ex62.c header file

2012-09-27 Thread Matthew Knepley
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[petsc-users] Problem with Finding Eigenvalues using SLEPc

2012-09-27 Thread Paul Cruise
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[petsc-users] Problem with Finding Eigenvalues using SLEPc

2012-09-27 Thread Paul Cruise
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[petsc-users] Problem with Finding Eigenvalues using SLEPc

2012-09-27 Thread Jose E. Roman
Before using EPS, try something like this and see if you get the same error: call MatGetVecs(A,v,w,ierr) call MatMult(A,v,w,ierr) Jose El 27/09/2012, a las 14:55, Paul Cruise escribi?: The error messages that I have is, [0]PETSC ERROR: - Error Message

[petsc-users] Fastest solver option after factorization

2012-09-27 Thread Hong Zhang
-users/attachments/20120927/5c12d671/attachment.html

[petsc-users] Fastest solver option after factorization

2012-09-27 Thread Jack Poulson
on this topic? I guess this group is one the best lists to ask for opinions ;-) BR, Umut -- next part -- An HTML attachment was scrubbed... URL: http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20120927/4a4cc889/attachment-0001.html

[petsc-users] question on PETSc option '-snes_mf_operator'

2012-09-27 Thread Zou (Non-US), Ling
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[petsc-users] question on PETSc option '-snes_mf_operator'

2012-09-27 Thread Matthew Knepley
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[petsc-users] question on PETSc option '-snes_mf_operator'

2012-09-27 Thread Zou (Non-US), Ling
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[petsc-users] question on PETSc option '-snes_mf_operator'

2012-09-27 Thread Matthew Knepley
. -- Norbert Wiener -- next part -- An HTML attachment was scrubbed... URL: http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20120927/755f656d/attachment.html

[petsc-users] Now Hiring!

2012-09-27 Thread Gaston, Derek R
personally (derek.gaston at inl.gov) if you have any questions at all! Derek Gaston -- next part -- An HTML attachment was scrubbed... URL: http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20120927/34099376/attachment-0001.html

[petsc-users] question on PETSc option '-snes_mf_operator'

2012-09-27 Thread Dmitry Karpeev
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[petsc-users] question on PETSc option '-snes_mf_operator'

2012-09-27 Thread Zou (Non-US), Ling
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[petsc-users] question on PETSc option '-snes_mf_operator'

2012-09-27 Thread Zou (Non-US), Ling
interesting than any results to which their experiments lead. -- Norbert Wiener -- next part -- An HTML attachment was scrubbed... URL: http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20120927/f2c7c155/attachment-0001.html

[petsc-users] Variable not given explicit type in latest petsc-dev

2012-09-27 Thread Wee-Beng Tay
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