[SciPy-Dev] planning 0.13.0 release

[Ralf Gommers]

On Fri, Oct 11, 2013 at 11:09 AM, David Cournapeau <cournape at gmail.com>wrote:

>
>
>
> On Thu, Oct 10, 2013 at 8:35 PM, Ralf Gommers <ralf.gommers at gmail.com>wrote:
>
>>
>>
>>
>> On Thu, Oct 10, 2013 at 12:55 PM, David Cournapeau <cournape at gmail.com>wrote:
>>
>>> I have tested the current 0.13.x branch on both rh5 and windows with the
>>> MKL, and am happy to report it works perfectly.
>>>
>>> We may want to mention in the notes that we can't compile scipy with gcc
>>> 4.1.* anymore (at least the rh5 version). Is it ok to make a PR to add
>>> those to the release notes ?
>>>
>>
>>  Sure, makes sense to add that.
>>
>
It's a bit late for the PR now since I want to start compiling binaries
within a few hours to get the final release done today. I can just add the
text "Scipy cannot be compiled with gfortran 4.1 anymore (at least on RH5),
likely due to that compiler version not supporting entry constructs well.".
If you have a better suggestion, please let me know.



> What's the reason by the way? I don't remember we broke things on purpose.
>>
>
> No, and I don't know for sure it is a compiler bug: could be a bug on our
> end.
>

> Two problems with gcc 4.1* (on rh5, those are often heavily patched):
>
>  - the entry construct in scipy.linalg.interpolative. As soon as you go
> there, it crashes. Since that's the only entry construct used in scipy, I
> suspect this is just not well supported in gfortran 4.1.
> https://github.com/scipy/scipy/issues/2939. We may want to avoid the
> entry construct ? Don't know how realistic that is. I certainly would not
> consider this a killer for the release, since it can be worked around.
>  - gcc 4.4 is more aggressive in optimizing potentially aliased pointers:
> not using the -fno-strict-aliasing is not an option anymore, it breaks
> cython fused types (lambert is completely broken without it, for example).
> I would argue the latter is a cython bug (I think we should be able to
> compile scipy and numpy wo -fno-strict-aliasing).
>

Did you file a bug for this?

Ralf


>
> cheers,
> David
>
>
>> Ralf
>>
>>
>>
>>>
>>> David
>>>
>>>
>>> On Mon, Oct 7, 2013 at 8:38 PM, Ralf Gommers <ralf.gommers at gmail.com>wrote:
>>>
>>>> Hi all,
>>>>
>>>> This has taken a while, but we're now about ready for the first release
>>>> candidate of 0.13.0. I plan to cut that on Thursday. Please don't commit to
>>>> the 0.13.x branch on Wed or Thu anymore but ping me if anything needs to go
>>>> in there at the last minute.
>>>>
>>>> Cheers,
>>>> Ralf
>>>>
>>>>
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>>>>
>>>
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