[petsc-users] Question about petsc-3.2-p5/src/ts/examples/tutorials/ex15.c

2011-12-27 Thread Fatcharm
Dear all, I am working with an example of petsc-3.2-p5/src/ts/examples/tutorials/ex15.c I noticed that in ex15.c, Jtype == 0 means that /* use user provided Jacobian evaluation routine */ Jtype == 1 is for /* slow finite difference J; */ and Jtype == 2 is /* Use coloring to compute finite

[petsc-users] Question about petsc-3.2-p5/src/ts/examples/tutorials/ex15.c

2011-12-27 Thread Hong Zhang
Feng-Chao, Jtype == 1 is for /* slow finite difference J; */ computes dense Jacobian one column at a time, taking prohibitively long time for large matrices. For 101*101 matrix, i.e., it evaluates 1.e+4 columns (evaluate function 1.e+4 times). Running it on my Mac, the execution terminates after a

[petsc-users] Strongly nonlinear equation solved within the framework of PETSc

2011-12-27 Thread Jed Brown
in advance! Feng-Chao Wang 2011-12-28 -- -- next part -- An HTML attachment was scrubbed... URL: http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20111227/dfa209f6/attachment-0001.htm -- next part -- A non

[petsc-users] invalid object classid 0 between PETSc and SLEPc

2011-12-27 Thread Geoffrey Irving
Hello, I've installed PETSc 3.2 and SLEPc 3.2 on Mac OS 10.7 through MacPorts 2.0.3. PETSc works fine by itself, but SLEPc fails on the initial EPSCreate call. The error follows. This is presumably a MacPorts misconfiguration issue, but thought I'd check here first to see if anyone has seen