[Users] Carpet error: strides disagree

[Erik Schnetter]

I believe I corrected this problem.

-erik

On Thu, Jan 12, 2012 at 9:41 AM, Erik Schnetter <schnetter at cct.lsu.edu> wrote:
> Luca
>
> To allow more error checking, and to allow more generic parallel
> operations in Carpet (e.g. supporting symmetry conditions), the grid
> operators now take an additional argument "srcregbox" that describes
> where an operator should take its data from. Previously, each operator
> determined that on its own, and the high-level infrastructure that
> needs to provide the operator with these data (e.g. copy from another
> process) re-determined this independently.
>
> Apparently this new code has an error. I see that the failing copy
> operation receives a dstregbbox with a smaller stride. Most likely,
> this copy operation is part of communicating data to a prolongation
> operation, and this copy operation receives the wrong dstregbox
> argument.
>
> As a short-term remedy, you can check out a version of Carpet from a
> few days ago. I'll have a look at this problem.
>
> -erik
>
> On Thu, Jan 12, 2012 at 1:03 AM, Luca Baiotti <baiotti at ile.osaka-u.ac.jp> wrote:
>> Hello,
>>
>> with a fresh ET checkout I ran into the error:
>>
>> copy_3d.cc:
>> srcbbox=([0,0,0]:[160,160,160]:[2,2,2]/[0,0,0]:[80,80,80]/[81,81,81]/531441)
>> dstbbox=([98,58,58]:[112,102,102]:[2,2,2]/[49,29,29]:[56,51,51]/[8,23,23]/4232)
>> srcregbbox=([98,58,58]:[112,102,102]:[2,2,2]/[49,29,29]:[56,51,51]/[8,23,23]/4232)
>> dstregbbox=([101,81,60]:[109,100,100]:[1,1,1]/[101,81,60]:[109,100,100]/[9,20,41]/7380)
>> WARNING level 0 in thorn CarpetLib processor 0 host
>>   (line 58 of
>> /Users/baiotti/Cactus-checkpoit-schedule-update/Cactus/arrangements/Carpet/CarpetLib/src/copy_3d.cc):
>>
>>   -> Internal error: strides disagree
>> Assertion failed: (0), function Abort, file
>> /Users/baiotti/Cactus-checkpoit-schedule-update/Cactus/arrangements/Carpet/Carpet/src/helpers.cc,
>> line 235.
>>
>>
>> What does it mean and what could the cause be?
>>
>> I am using very simple parameters for carpet:
>>
>>
>> grid::type          = "coordbase"
>> grid::avoid_origin  = "no"
>> grid::domain        = "full"
>>
>> coordbase::xmin =    -1.
>> coordbase::xmax =     1.
>> coordbase::ymin =    -1.
>> coordbase::ymax =     1.
>> coordbase::zmin =    -1.
>> coordbase::zmax =     1.
>>
>> coordbase::dx   = 0.025
>> coordbase::dy   = 0.025
>> coordbase::dz   = 0.025
>>
>> Carpet::verbose                  = yes
>> Carpet::veryverbose              = yes
>>
>> carpet::use_buffer_zones         = yes
>> carpet::num_integrator_substeps  = 3
>>
>> Carpet::domain_from_coordbase    = "yes"
>> Carpet::enable_all_storage       = "no"
>>
>> methodoflines::ode_method               =       "rk2"
>> methodoflines::mol_intermediate_steps   =       2
>> methodoflines::initial_data_is_crap     =       "yes"
>> InitBase::initial_data_setup_method     =       "init_all_levels"
>> Carpet::init_3_timelevels        = "no"
>> Carpet::init_each_timelevel      = "no"
>>
>> Carpet::prolongation_order_space = 3
>> Carpet::prolongation_order_time  = 2
>>
>> Carpet::regrid_in_level_mode         = yes
>> Carpet::regrid_during_initialisation = no
>>
>> Carpet::max_refinement_levels           = 2
>> CarpetRegrid2::num_centres              = 1
>>
>> CarpetRegrid2::num_levels_1             = 2
>> CarpetRegrid2::position_x_1             = 0.0
>> CarpetRegrid2::radius_1             [1] = 0.25
>>
>> Carpet::poison_new_timelevels           = yes
>> Carpet::check_for_poison                = yes
>> CarpetLib::poison_new_memory            = yes
>> CarpetLib::poison_value                 = 222
>>
>>
>>
>> Cheers,
>>
>> Luca
>> _______________________________________________
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>
>
>
> --
> Erik Schnetter <schnetter at cct.lsu.edu>   http://www.cct.lsu.edu/~eschnett/



-- 
Erik Schnetter <schnetter at cct.lsu.edu>   http://www.cct.lsu.edu/~eschnett/