[yt-users] Error in reading the hydrodynamics dataset in Ramses

[Junhwan Choi (최준환)]

Hi Romain,

Yes, it is Pierre's cudaton simulation.
If this is the case where do I find how many  variables the simulation
use and what he names are?
I can ask to pierre, if there is no such a information in the simulation output.

Thank you,
Junhwan

On Wed, Nov 20, 2013 at 3:53 PM, Romain Teyssier
<romain.teyssier at gmail.com> wrote:
> Hi Junhwan,
>
> The name of your repository “rhd” suggests that you are using the radiation solver.
> In this case, you must have more than 5 variables, probably 6 or more.
> So you need to use :
> fields = ["Density","x-velocity", "y-velocity","z-velocity",”Pressure”,”var6”,”var7”,...]).
>
> Romain
>
>
>
>
> On 20 Nov 2013, at 22:50, Junhwan Choi (최준환) <choi.junhwan at gmail.com> wrote:
>
>> Thank you, Kearn.
>>
>> I tried your suggestion that I used
>> ds = load("/lustre/widow2/proj/ast031/test11_rhd_fesc=0.05/output_00048/info_00048.txt",
>> fields = ["Density","x-velocity", "y-velocity",
>> "z-velocity","Pressure"]).
>> But, it results in the identical error message.
>> I still do not know what I need to do.
>>
>> Regard,
>> Junhwan
>>
>>
>>
>> On Wed, Nov 20, 2013 at 10:37 AM,  <k.grisdale at surrey.ac.uk> wrote:
>>> Hi Junhwan
>>>
>>> I think the problem you might the having is you need to specify the fields you read into yt. To do this just modify you load command to this:
>>>
>>> ds = load("/lustre/widow2/proj/ast031/test11_rhd_fesc=0.05/output_00048/info_00048.txt”, fields = ["Density","x-velocity", "y-velocity", "z-velocity", "Pressure”])
>>>
>>> (Assuming that you are running a 3d Simulation with NVAR set as 5)
>>>
>>> Hope that helps
>>>
>>> Kearn
>>>
>>>
>>> On 20 Nov 2013, at 16:26, Junhwan Choi (최준환) <choi.junhwan at gmail.com> wrote:
>>>
>>>> Hi yt users,
>>>>
>>>> I try to make a basic visualization for the Ramses simulation using
>>>> following script:
>>>> ==========================
>>>> from yt.mods import *
>>>>
>>>> ds = load("/lustre/widow2/proj/ast031/test11_rhd_fesc=0.05/output_00048/info_00048.txt")
>>>> center = [0.5, 0.5, 0.5]
>>>>
>>>> pw = ProjectionPlot(ds, "x", ("deposit", "all_density"))
>>>> pw.zoom(1.01)
>>>> pw.save("allview")
>>>>
>>>> pw = ProjectionPlot(ds, "x", "Density")
>>>> pw.zoom(1.01)
>>>> pw.save("allviewGas")
>>>> ============================
>>>> It WORKS for the particle projection (for allview) but it does not
>>>> work for gas projection.
>>>>
>>>> When the yt try to deal with gas dataset, I got the following error
>>>> message and the script crash.
>>>> You are running with the wrong number of fields.
>>>> Please specify these in the load command.
>>>> We are looking for 6 fields.
>>>> The last set of field sizes was: [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
>>>> 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
>>>> 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2]
>>>> Traceback (most recent call last):
>>>> File "DenVis_DM_Gas.py", line 10, in <module>
>>>>   pw = ProjectionPlot(ds, "x", ("gas", "Density"))
>>>> File "/autofs/na3_home1/jhchoi/common/src/yt-hg/yt/visualization/plot_window.py",
>>>> line 1441, in __init__
>>>>   field_parameters = field_parameters)
>>>> File "/autofs/na3_home1/jhchoi/common/src/yt-hg/yt/data_objects/construction_data_containers.py",
>>>> line 234, in __init__
>>>>   self.get_data(field)
>>>> File "/autofs/na3_home1/jhchoi/common/src/yt-hg/yt/data_objects/construction_data_containers.py",
>>>> line 278, in get_data
>>>>   chunk_fields, "io")):
>>>> File "/autofs/na3_home1/jhchoi/common/src/yt-hg/yt/utilities/parallel_tools/parallel_analysis_interface.py",
>>>> line 434, in parallel_objects
>>>>   for obj_id, obj in oiter:
>>>> File "/autofs/na3_home1/jhchoi/common/src/yt-hg/yt/data_objects/data_containers.py",
>>>> line 453, in chunks
>>>>   self.get_data(fields)
>>>> File "/autofs/na3_home1/jhchoi/common/src/yt-hg/yt/data_objects/data_containers.py",
>>>> line 531, in get_data
>>>>   fluids, self, self._current_chunk)
>>>> File "/autofs/na3_home1/jhchoi/common/src/yt-hg/yt/geometry/geometry_handler.py",
>>>> line 520, in _read_fluid_fields
>>>>   chunk_size)
>>>> File "/autofs/na3_home1/jhchoi/common/src/yt-hg/yt/frontends/ramses/io.py",
>>>> line 41, in _read_fluid_selection
>>>>   rv = subset.fill(content, fields, selector)
>>>> File "/autofs/na3_home1/jhchoi/common/src/yt-hg/yt/frontends/ramses/data_structures.py",
>>>> line 304, in fill
>>>>   for level, offset in enumerate(self.domain.hydro_offset):
>>>> File "/autofs/na3_home1/jhchoi/common/src/yt-hg/yt/frontends/ramses/data_structures.py",
>>>> line 102, in hydro_offset
>>>>   hvals = fpu.read_attrs(f, header, "=")
>>>> File "/autofs/na3_home1/jhchoi/common/src/yt-hg/yt/utilities/fortran_utils.py",
>>>> line 74, in read_attrs
>>>>   assert(s1 == s2)
>>>> AssertionError
>>>>
>>>> I do not understand what is the problem since it is such a basic visualization.
>>>> Since I am new for Ramses data, I may take a simple mistake.
>>>> Can anyone explain what the error message means and how to resolve the problem?
>>>>
>>>> Thank you in advance,
>>>> Junhwan
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>>>>
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