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

+1

On Fri, Sep 25, 2015 at 6:59 PM, Nathan Goldbaum <nathan12343@gmail.com> wrote:

On Fri, Sep 25, 2015 at 12:55 PM, Matthew Turk <matthewturk@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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Cameron Hummels

NSF Postdoctoral Fellow

Department of Astronomy

California Institute of Technology

http://chummels.org