Right, so configure did the proper job and told you that your compiler does not
(fully) work with C++11, there is no point in trying to add extra flags to
bypass this limitation.
As Satish suggested: either use a newer g++ or configure --with-cxx=0
Thanks,
Pierre
> On 2 Aug 2023, at 6:42 AM,
Hi,
My understanding is that the second-order generalized-alpha time stepper in
PETSc uses a same-displacement predictor as the initial guess for the
nonlinear solver that executes in each time step. I'd like to be able to
set this to something else, to improve convergence. However, my
>> Initially I got an error related
>> to 'C++11' flag,
Can you send the configure.log for this as well
Best regards,
Jacob Faibussowitsch
(Jacob Fai - booss - oh - vitch)
> On Aug 1, 2023, at 14:42, Satish Balay via petsc-users
> wrote:
>
>> gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-44)
>
>
> gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-44)
Is it possible for you to use a newer version GNU compilers?
If not - your alternative is to build PETSc with --with-cxx=0 option
But then - you can't use --download-superlu_dist or any pkgs that need
c++ [you could try building them separately
Sorry about this. I signed up for a conference without the work done, with
predictable results. I have just returned home.
There were just a few small problems. First, the labels were attached to
dmSurface, but you wanted them on dm. They got destroyed with dmSurface
before setting the BC.
This still isn't working, and it looks like the md/mt distinciton might be
the culprit.
I use the Ninja generator with cmake, on the intel oneapi command line
(i.e. windows command line but with the pathing and other things sorted out
for the new intel compilers).
Looking at the build.ninja file
