[Users] using WeylScal4 and Multipole thorns in McLachlan

[Ian Hinder]

On 25 Jan 2012, at 14:19, Jose Fiestas Iquira wrote:

> Hello,
> Please correct me if the way to disable scalar output for complex grid functions is e.g. deleting the lines WEYLSCAL4::Psi4r and WEYLSCAL4::Psi4i below. 
> They are the only I recognize as complex numbers. Which information am I loosing so?

Those are real numbers - we don't use the complex data type in WeylScal4.  Maybe try disabling QuasiLocalMeasures?  We have had problems with MPI with that thorn before (https://trac.einsteintoolkit.org/ticket/495).


> 
> ----------------------------------------------------------
> ActiveThorns = "CarpetIOScalar"
> 
> IOScalar::one_file_per_group = yes
> 
> IOScalar::outScalar_every = 128
> IOScalar::outScalar_vars  = "
>         CarpetReduce::weight
>         ADMBase::metric
>         ADMBase::curv
>         ADMBase::lapse
>         ADMBase::shift
>         ADMBase::dtlapse
>         ADMBase::dtshift
>         WEYLSCAL4::Psi4r
>         WEYLSCAL4::Psi4i
>         ML_ADMConstraints::ML_Ham
>         ML_ADMConstraints::ML_mom
>         SphericalSurface::sf_radius
>         QuasiLocalMeasures::qlm_newman_penrose
>         QuasiLocalMeasures::qlm_weyl_scalars
>         QuasiLocalMeasures::qlm_ricci_scalars
>         QuasiLocalMeasures::qlm_twometric
>         QuasiLocalMeasures::qlm_killing_vector
>         QuasiLocalMeasures::qlm_killed_twometric
>         QuasiLocalMeasures::qlm_invariant_coordinates
>         QuasiLocalMeasures::qlm_3determinant
> 
> 
> Thanks,
> Jose
> 
> 
> 
> On Wed, Jan 25, 2012 at 7:09 AM, Erik Schnetter <schnetter at cct.lsu.edu> wrote:
> Jose
> 
> Some thorn requests a reduction for a complex datatype, which does not
> work with this MPI version. This should be corrected in later versions
> of Carpet. Alternatively, you can try e.g. disabling scalar output for
> complex grid functions.
> 
> -erik
> 
> On Wed, Jan 25, 2012 at 5:39 AM, Jose Fiestas Iquira <jafiestas at lbl.gov> wrote:
> > Hello,
> >
> > I am using WeylScal4 and Multipole thorns in McLachlan, and started a run
> > using simfactory. It started well but stops after an MPI error. Before I get
> > some warnings related to the parameters m_mode and l_mode. I am attaching
> > the error file. It runs only for the initial time step zero.
> >
> > Does somebody have probably a hint what is the best parameter setting? I am
> > using following:
> >
> > ActiveThorns = "WeylScal4 Multipole"
> > WeylScal4::offset                    = 1e-8
> > WeylScal4::fd_order                  = "4th"
> > WeylScal4::verbose                   = 0
> >
> > Multipole::nradii = 8
> > Multipole::out_every = 128
> > Multipole::radius[0] = 15
> > Multipole::radius[1] = 30
> > Multipole::radius[2] = 40
> > Multipole::radius[3] = 50
> > Multipole::radius[4] = 60
> > Multipole::radius[5] = 70
> > Multipole::radius[6] = 80
> > Multipole::radius[7] = 90
> > Multipole::variables = "WeylScal4::Psi4r{sw=-2 cmplx='WeylScal4::Psi4i'
> > name='Psi4'}"
> > Multipole::l_mode = 4
> > Multipole::m_mode = 4
> >
> > Thanks,
> > Jose
> >
> > _______________________________________________
> > Users mailing list
> > Users at einsteintoolkit.org
> > http://lists.einsteintoolkit.org/mailman/listinfo/users
> >
> 
> 
> 
> --
> Erik Schnetter <schnetter at cct.lsu.edu>   http://www.cct.lsu.edu/~eschnett/
> 
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-- 
Ian Hinder
http://numrel.aei.mpg.de/people/hinder

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