[yt-dev] Pre-YTEP: remove caching of datasets

[Cameron Hummels]

+1

On Fri, Sep 25, 2015 at 11:16 AM, Britton Smith <brittonsmith at gmail.com>
wrote:

> +1
>
> On Fri, Sep 25, 2015 at 6:59 PM, Nathan Goldbaum <nathan12343 at gmail.com>
> wrote:
>
>>
>>
>> On Fri, Sep 25, 2015 at 12:55 PM, Matthew Turk <matthewturk at gmail.com>
>> wrote:
>>
>>> Hi all,
>>>
>>> Before I get too far into writing up a YTEP, I wanted to know if
>>> anyone would object to disabling "caching" of datasets in-memory.
>>>
>>> Right now, if you do:
>>>
>>> ds1 = yt.load("something")
>>> ds2 = yt.load("something")
>>>
>>> "ds1 is ds2" will return True; this was done so that you could load a
>>> dataset, then unpickle an object with a reference to that dataset, and
>>> get the dataset back rather than a newly-loaded one.  But I think a)
>>> folks don't pickle much b) it causes a lot of problems.  So I'm
>>> wondering if it would be okay to just turn this off.
>>>
>>
>> Big +1 to this. It's been the cause of a number of head-scratchers for
>> me. It also motivated the parts of this change that touch domain_left_edge
>> and domain_right_edge, which is IMO a bit silly but necessary given the way
>> the caching works:
>>
>>
>> https://bitbucket.org/ngoldbaum/yt/commits/dd8d2317489904eb14b24cb63d7e8cfd0e32541f
>>
>>
>>>
>>> -Matt
>>> _______________________________________________
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>>> yt-dev at lists.spacepope.org
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>>>
>>
>>
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>>
>
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-- 
Cameron Hummels
NSF Postdoctoral Fellow
Department of Astronomy
California Institute of Technology
http://chummels.org
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