[Users] Carpet::processor_topology="recursive"...

Yosef Zlochower yosef at astro.rit.edu
Thu Nov 17 05:10:52 CST 2011


Hi,

  I am trying to test the new balancing algorithm with LazEv (I am
using the development version of ET).
I used an identical test parfile to the one I used for Maxwell and
previous ET versions (except for the 
Carpet::processor_topology="recursive" parameter). On running, I
get a grid setup error

The following components are not properly nested, i.e.,
they are not contained within the next coarser level's components:
    ml 0 rl 7 c 7: 
([88,25480,1016]:[1416,25720,1144]:[4,4,4]/[22,6370,254]:[354,6430,286]/[333,61,33]/670329)
WARNING level 0 in thorn CarpetLib processor 2 host 
i148-303.ranger.tacc.utexas.edu
   (line 191 of 
/work/00951/tg801986/ET/Latest/Cactus/arrangements/Carpet/CarpetLib/src/gh.cc):
   -> The refinement hierarchy is not properly nested.
[2] [MPI Abort by user] Aborting Program!
WARNING level 0 in thorn CarpetLib processor 6 host 
i176-108.ranger.tacc.utexas.edu
   (line 191 of 
/work/00951/tg801986/ET/Latest/Cactus/arrangements/Carpet/CarpetLib/src/gh.cc):
   -> The refinement hierarchy is not properly nested.

Here is my grid setup
ActiveThorns = .... ReflectionSymmetry RotatingSymmetry180 ....

CoordBase::domainsize       = "minmax"
CoordBase::xmin             = 0
CoordBase::ymin             = -400
CoordBase::zmin             = 0
CoordBase::xmax             = 400
CoordBase::ymax             = 400
CoordBase::zmax             = 400
CoordBase::spacing          = "numcells"
CoordBase::ncells_x         = 100
CoordBase::ncells_y         = 200
CoordBase::ncells_z         = 100
CartGrid3D::type            = "coordbase"
CartGrid3D::domain          = "full"

CartGrid3D::avoid_originx   = no
CartGrid3D::avoid_originy   = no
CartGrid3D::avoid_originz   = no

CoordBase::boundary_size_x_lower        = 4
CoordBase::boundary_size_y_lower        = 1
CoordBase::boundary_size_z_lower        = 4

CoordBase::boundary_size_x_lower        = 4
CoordBase::boundary_size_y_lower        = 1
CoordBase::boundary_size_z_lower        = 4
CoordBase::boundary_shiftout_x_lower    = 1
CoordBase::boundary_shiftout_y_lower    = 0
CoordBase::boundary_shiftout_z_lower    = 1

CoordBase::boundary_size_x_upper        = 1
CoordBase::boundary_size_y_upper        = 1
CoordBase::boundary_size_z_upper        = 1

ReflectionSymmetry::reflection_x="no"
ReflectionSymmetry::reflection_y="no"
ReflectionSymmetry::reflection_z="yes"
ReflectionSymmetry::avoid_origin_x="no"
ReflectionSymmetry::avoid_origin_y="no"
ReflectionSymmetry::avoid_origin_z="no"
ReflectionSymmetry::avoid_origin_upper_x="no"
ReflectionSymmetry::avoid_origin_upper_y="no"
ReflectionSymmetry::avoid_origin_upper_z="no"


driver::ghost_size                        = 4

CarpetRegrid2::regrid_every = 32

CarpetRegrid2::num_centres = 2
CarpetRegrid2::symmetry_rotating180 = yes

CarpetRegrid2::num_levels_1 = 9
CarpetRegrid2::position_x_1 = 4.250
CarpetRegrid2::position_y_1 = 0
CarpetRegrid2::position_z_1 = 0
CarpetRegrid2::radius_1[ 1] = 208
CarpetRegrid2::radius_1[ 2] = 115
CarpetRegrid2::radius_1[ 3] = 60
CarpetRegrid2::radius_1[ 4] = 30
CarpetRegrid2::radius_1[ 5] = 12
CarpetRegrid2::radius_1[ 6] = 5
CarpetRegrid2::radius_1[ 7] = 1.5
CarpetRegrid2::radius_1[ 8] = 0.75

CarpetRegrid2::num_levels_2 = 9
CarpetRegrid2::position_x_2 = -4.250
CarpetRegrid2::position_y_2 = 0
CarpetRegrid2::position_z_2 = 0
CarpetRegrid2::radius_2[ 1] = 208
CarpetRegrid2::radius_2[ 2] = 115
CarpetRegrid2::radius_2[ 3] = 60
CarpetRegrid2::radius_2[ 4] = 30
CarpetRegrid2::radius_2[ 5] = 12
CarpetRegrid2::radius_2[ 6] = 5
CarpetRegrid2::radius_2[ 7] = 1.5
CarpetRegrid2::radius_2[ 8] = 0.75


On 11/14/2011 04:15 PM, Erik Schnetter wrote:
> ... is the way to enable Peter Dieners new load balancing algorithm
> that I just adapted to Carpet. It should reduce load imbalance. If you
> feel adventurous, please give it a try, and compare to an existing
> simulation.
>
> I am in particular interested in knowing
> - does this break stuff?
> - do the simulation results remain the same?
> - how does the speed compare to the standard load balancing algorithm?
>
> -erik
>


-- 
Dr. Yosef Zlochower
Center for Computational Relativity and Gravitation
Assistant Professor
School of Mathematical Sciences
Rochester Institute of Technology
85 Lomb Memorial Drive
Rochester, NY 14623

Office:74-2067
Phone: +1 585-475-6103

yosef at astro.rit.edu

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