numpy.linalg

[TheFausap]

Hello all,

i'm trying to use numpy.linalg functions with pythran but I receive an error : Attribute 'linalg' unknown.

How can I fix this ?

thanks,
Fausto

[pbrunet]

Hi TheFausap,

I am sorry, for now, numpy.linalg is not available with pythran.

The only way to fix this is not to use this module or waiting for us to implement it.

As we use nt2 for mathematical aspect of pythran (we are computer scientist, not mathematician), It will not be implemented soon as we are waiting for their C like array.
If you need specifics functions, we may try to add them but it may not be as fast as you expect.

Cheers,
Pierrick

[TheFausap]

Hello Pierrick,

thanks for the reply and clarification.

I'm using basically norm and eigval functions. So, the norm is easy to
re-implement, for the eigen values (of a complex matrix) it's not so
immediate but it should be feasible anyway :-)

I'll try to do in this way.

thanks a lot,
Fausto

2013/10/8 pbrunet [email protected]

Hi TheFausap,

I am sorry, for now, numpy.linalg is not available with pythran.

The only way to fix this is not to use this module or waiting for us to
implement it.

As we use nt2 for mathematical aspect of pythran (we are computer
scientist, not mathematician), It will not be implemented soon as we are
waiting for their C like array.
If you need specifics functions, we may try to add them but it may not be
as fast as you expect.

Cheers,
Pierrick

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[serge-sans-paille]

Hi Fausto,

can you send us the code you're trying to convert?
It should be possible to add suport to norm and eigval depending on how you're using them before we make the full switch to nt?.

Thxs
I'd be interested in adding the support for linalg and

[TheFausap]

Hi!

sure.
This code is written by Paul Pham (skc-python) and I'm trying to do some
optimizations in order to speed-up the entire process that is very very
time consuming.

Attached there's the file I'm trying to convert.

thanks,
Fausto

2013/10/8 serge-sans-paille [email protected]

Hi Fausto,

can you send us the code you're trying to convert?
It should be possible to add suport to norm and eigval depending on how
you're using them before we make the full switch to nt?.

Thxs
I'd be interested in adding the support for linalg and

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Reply to this email directly or view it on GitHubhttps://github.com//issues/155#issuecomment-25881239
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[serge-sans-paille]

mmmh, no attachement there...

[TheFausap]

hello, maybe there's a filter, deleting attachment to the list... i'll use
the web interface, maybe I have more luck :-D

2013/10/8 serge-sans-paille [email protected]

mmmh, no attachement there...

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Reply to this email directly or view it on GitHubhttps://github.com//issues/155#issuecomment-25884343
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[serge-sans-paille]

Or just put it into a gist
https://gist.github.com/

[TheFausap]

ok... done this is the link... never used GIST :)

https://gist.github.com/TheFausap/6883837

it's public gist, so I hope you can access it...

[serge-sans-paille]

Great! Lot of work for us, I'll give you more info later one.

[serge-sans-paille]

Hi again. I've been digging through your code and it appears most of it relies on the matrix class, which is still not supported in pythran, and will likely not be supported in a near future.

A good test bed though :-)