REQ: Cool results
by Matthew Turk
Hi folks,
Next week I'm giving a talk at AAS about yt. One thing I'd really
like to do is showcase some of the cool results that folks have used
yt to generate. The slides are due Wednesday, but I'm probably going
to put the finishing touches on Monday or Tuesday.
The time slot is quite short, but if you have some cool results you're
proud of, or that you want to have shown during a talk like that, I'd
be mighty obliged if you would consider emailing them to me at
matthewturk(a)gmail.com, along with how you'd like them to be cited or
credited.
Thanks!
-Matt
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3 years, 2 months
Analysis module review process
by Matthew Turk
Hi everyone,
Before writing this up in the YTEP, I wanted to get a sense of
people's feelings on lowering the barrier to entry for changes to
analysis modules. Often these are maintained by a smaller number of
people and don't touch much of the rest of the code, so changes can be
hard to get pushed through.
An alternate thing we could try out would be spinning these out into
their own packages, which we could provide helpers or hooks to
download and install. A big advantage to having them in the main repo
is that then everything comes in the box.
[+-][01] on reducing review overhead for analysis modules?
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3 years, 2 months
Issue #1149: RuntimeError when defining a derived gradient field (2D cartesian data) (yt_analysis/yt)
by Suoqing Ji
New issue 1149: RuntimeError when defining a derived gradient field (2D cartesian data)
https://bitbucket.org/yt_analysis/yt/issues/1149/runtimeerror-when-defini...
Suoqing Ji:
Script:
```
#!python
import yt
from yt.fields.derived_field import ValidateSpatial
import numpy as np
@yt.derived_field(name='gradx_velocity_x', units='1/code_time',
validators = [ValidateSpatial(1, ['velocity_x'])])
def _gradx_velocity_x(field,data):
sl_left = slice(None, -2, None)
sl_right = slice(2, None, None)
div_fac = 2.0
ds = div_fac * data['dx'].flat[0]
f = data["velocity_x"][sl_right,1:-1,1:-1]/ds
f -= data["velocity_x"][sl_left ,1:-1,1:-1]/ds
new_field = np.zeros(data["velocity_x"].shape, dtype='float64')
new_field = data.ds.arr(new_field,'1/code_time')
new_field[1:-1,1:-1,1:-1] = f
return new_field
ds = yt.load('thermal_instab_hdf5_chk_0050')
ds.periodicity = (True, True, True)
slc = yt.SlicePlot(ds, 'z', 'gradx_velocity_x')
slc.save()
```
Error:
```
#!python
Traceback (most recent call last):
File "slice.py", line 22, in <module>
slc = yt.SlicePlot(ds, 'z', 'gradx_velocity_x')
File "/Users/jisuoqing/Workspace/code/yt-x86_64/src/yt-hg/yt/visualization/plot_window.py", line 1859, in SlicePlot
return AxisAlignedSlicePlot(ds, normal, fields, *args, **kwargs)
File "/Users/jisuoqing/Workspace/code/yt-x86_64/src/yt-hg/yt/visualization/plot_window.py", line 1235, in __init__
slc.get_data(fields)
File "/Users/jisuoqing/Workspace/code/yt-x86_64/src/yt-hg/yt/data_objects/data_containers.py", line 1181, in get_data
self._generate_fields(fields_to_generate)
File "/Users/jisuoqing/Workspace/code/yt-x86_64/src/yt-hg/yt/data_objects/data_containers.py", line 1201, in _generate_fields
fd = self._generate_field(field)
File "/Users/jisuoqing/Workspace/code/yt-x86_64/src/yt-hg/yt/data_objects/data_containers.py", line 305, in _generate_field
tr = self._generate_fluid_field(field)
File "/Users/jisuoqing/Workspace/code/yt-x86_64/src/yt-hg/yt/data_objects/data_containers.py", line 323, in _generate_fluid_field
rv = self._generate_spatial_fluid(field, ngt_exception.ghost_zones)
File "/Users/jisuoqing/Workspace/code/yt-x86_64/src/yt-hg/yt/data_objects/data_containers.py", line 352, in _generate_spatial_fluid
gz[field][ngz:-ngz, ngz:-ngz, ngz:-ngz],
File "/Users/jisuoqing/Workspace/code/yt-x86_64/src/yt-hg/yt/data_objects/data_containers.py", line 268, in __getitem__
self.get_data(f)
File "/Users/jisuoqing/Workspace/code/yt-x86_64/src/yt-hg/yt/data_objects/construction_data_containers.py", line 614, in get_data
if len(fill) > 0: self._fill_fields(fill)
File "/Users/jisuoqing/Workspace/code/yt-x86_64/src/yt-hg/yt/data_objects/construction_data_containers.py", line 907, in _fill_fields
raise RuntimeError
RuntimeError
```
However, when I commented out the lines of ```raise RuntimeError```, the script works fine and produces reasonable result.
3 years, 3 months
What would be useful for coarse-grained indexing?
by Matthew Turk
Hi all,
In this PR I've tried to instigate a discussion of what would be
useful for a coarse-grained index of datasets:
https://bitbucket.org/yt_analysis/yt/pull-requests/1902/rfc-yt-search-com...
For the "minimum representation" object, we use:
("dimensionality", "refine_by", "domain_dimensions", "current_time",
"domain_left_edge", "domain_right_edge", "unique_identifier",
"current_redshift", "output_hash", "cosmological_simulation",
"omega_matter", "omega_lambda", "hubble_constant", "name")
Is this sufficient, or should we add/remove things? We likely want to
remove the cosmological ones from non-cosmo sims (and leave them in
for cosmo sims) but otherwise, is there anything else we should
include?
-Matt
3 years, 3 months
