[petsc-users] no PCFactorSetUseDropTolerance() in 3.1-p6

Tobias Neckel neckel at in.tum.de
Tue Dec 7 09:17:18 CST 2010


Hello,

we recently switched from 3.0.0-p11 to 3.1-p6 and are now facing a minor 
problem in some of our test cases: We use seqaij matrix format and GMRES 
with ILU dt.

Our code contained a statement using PCFactorSetUseDropTolerance() which 
does not exist any longer. So we renamed the function call to 
PCFactorSetDropTolerance (same signature) which has no online docu but 
found by google ;-) Obviously, this function has not the same 
functionality as our tests fail.

In 3.0.0-p11, the docu of the "Summary of Sparse Linear Solvers 
Available from PETSc" showed a line containing:
ILU dt: ILU dt 	seqaij 	Sparsekit (table survey)

This is not included in the docu of 3.1-p6 
(http://www.mcs.anl.gov/petsc/petsc-as/documentation/linearsolvertable.html 
) any more. Does that mean that the ILU dt version is not supported by 
the (default) petsc? I also checked the changelog but did not find 
anything there; sorry if I missed sth.

Any help or infos will be highly appreciated ;-)

Thanks and best regards
Tobias


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