[SciPy-User] Problem with handling big matrices with Windows

[Matthieu Brucher]

You will need to construct this array bits by bits, not in one go. No
other solution, as it would be even worse in terms of memory usage.

2014-06-11 11:12 GMT+01:00 Antonelli Maria Rosaria
<maria-rosaria.antonelli at curie.fr>:
> Yes, thank you,.
> But later I will have to assign a matrix to float to fp…
> Best,
> Rosa
>
> From: Daπid <davidmenhur at gmail.com>
> Reply-To: SciPy Users List <scipy-user at scipy.org>
> Date: Wednesday, June 11, 2014 12:07 PM
> To: SciPy Users List <scipy-user at scipy.org>
> Subject: Re: [SciPy-User] Problem with handling big matrices with Windows
>
> On 11 June 2014 12:01, Antonelli Maria Rosaria
> <maria-rosaria.antonelli at curie.fr> wrote:
>>
>> I can np.memmap of that size, but when I ask to assign a zeros matrix of
>> the same size to the np.memmap, it gives the same error :
>> fp = np.memmap(filename, dtype='float, mode ='w+', shape(80, 100, 384,
>> 285))
>> fp = zeros((80, 100, 384, 285)
>
>
> You are not assigning values, but just replacing the memap object by a new
> matrix. You can zero the matrix by doing:
>
> fp = np.memap(...)
> fp[:] = 0
>
> _______________________________________________
> SciPy-User mailing list
> SciPy-User at scipy.org
> http://mail.scipy.org/mailman/listinfo/scipy-user
>



-- 
Information System Engineer, Ph.D.
Blog: http://matt.eifelle.com
LinkedIn: http://www.linkedin.com/in/matthieubrucher
Music band: http://liliejay.com/