Timo Heister [Fri, 5 Feb 2016 14:53:41 +0000 (09:53 -0500)]
fix metis tests
On my machine with 64bit ints and 32bit metis I am getting the 32bit results
and so the tests fail. Fix this by always comparing against all possible
outputs. Also include additional output for metis_04.
David Wells [Fri, 22 Jan 2016 16:38:46 +0000 (11:38 -0500)]
Let FE names have spaces between words.
Previously, things like
FESystem[FE_Q(1) - FE_Q(2)]
caused parsing errors due to the spaces around the '-'. The new behavior is to
delete space that is not surrounded by 'word' characters (things that match the
regular expression [A-Za-z0-9_]) before parsing the name.
Timo Heister [Thu, 4 Feb 2016 23:17:49 +0000 (18:17 -0500)]
handle empty test output
If the make command to compile a test returns empty output (don't ask me
why that happened on my machine), quote it in the regex to avoid an
error like:
"string sub-command REGEX, mode MATCH needs at least 5 arguments"
Patrick Esser [Mon, 1 Feb 2016 19:42:22 +0000 (20:42 +0100)]
avoid warning about unused variable
According to the documentation of ArpackSolver::solve the first parameter is
unused. Do not give it a name in the definition to avoid unused variable
warnings.
Timo Heister [Tue, 26 Jan 2016 14:03:53 +0000 (15:03 +0100)]
improve PETSc sparse_matrix constructor error msg
If you construct a PETSc sparse matrix with invalid IndexSets for local
rows/columns, you only get a cryptic PETSc error code. This commit adds
a check in debug mode with a helpful error message.
Timo Heister [Tue, 26 Jan 2016 09:51:38 +0000 (10:51 +0100)]
fix metis partitioning with too many processors
If you have more processors than cells to partition, METIS will behave
in a weird and undesired way:
- at some point all subdomains land on a single processor
- METIS produces an error message "***Cannot bisect a graph with 0
vertices!"
David Wells [Fri, 22 Jan 2016 22:57:41 +0000 (17:57 -0500)]
Ignore surrounding whitespace if continuing lines.
This commit modifies the behavior present in both 23f306dfc5 (which did
not join lines if there was whitespace following a '\') and 0b962b1103 (which did not trim whitespace at the beginning of continued
lines).
We decided to remove whitespace at the beginning of a continued line
both because it was implemented that way in 23f306dfc5 (i.e., the 'fix'
in 0b962b1103 was wrong) and because it makes writing things
like (example provided by Alberto Sartori)
set Finite element space = FESystem[FE_Q(1)^d-\
FE_DGPMonomial(0)-\
FE_DGPMonomial(0)]
possible.
For the sake of posterity, here is part of the discussion (PR #2101)
which lead to the decision to remove trailing whitespace:
drwells:
I agree with @asartori86 that trailing whitespace is a mistake. I
suppose that I ultimately disagree because I think it is one that we
should 'forgive'. I think we are in agreement that we should join lines
if the last non-whitespace character is a `\`, then.
bangerth:
I agree, too, that trailing whitespace is a mistake. But there are two
options:
* Enforce it. In those cases you'll get an error about the next line not
being what the parser expects, while the file looks completely correct
visually. People will probably spend a long time rubbing their eyes
before they realize the problem.
* Forgive it, at the cost of not being able to support valid cases where
the user wants to have a backslash within the text, followed by only
spaces. That seems like a rare case to happen in practice, and also a
poor choice of syntax for whatever the user wanted to achieve.
From a usability standpoint, option 1 seems more appealing.
Timo Heister [Sun, 24 Jan 2016 17:05:13 +0000 (18:05 +0100)]
fix crash in petsc step-40
fix:
An error occurred in line <96> of file </ssd/deal-
git/source/lac/petsc_solver.cc> in function
void dealii::PETScWrappers::SolverBase::solve(const
dealii::PETScWrappers::MatrixBase&, dealii::PETScWrappers::VectorBase&,
const dealii::PETScWrappers::VectorBase&, const
dealii::PETScWrappers::PreconditionerBase&)
The violated condition was:
ierr == 0
The name and call sequence of the exception was:
ExcPETScError(ierr)
Additional Information:
An error with error number 80 occurred while calling a PETSc function
projects / dealii.git / log