that the fortran array indices are reversed, but this is the
most natural way in any case.
--George Nurser
On 10 April 2016 at 11:53, Sebastian Berg <sebast...@sipsolutions.net>
wrote:
> On So, 2016-04-10 at 12:04 +0200, Vasco Gervasi wrote:
> > Hi all,
> > I am trying to write some c
on it as far as I can see.)
Best regards, George Nurser
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Note also that OpenBlas claims performance as good as MKL with Sandy Bridge
processors.
https://github.com/xianyi/OpenBLAS/wiki/faq#wiki-sandybridge_perf
George Nurser.
On 10 November 2012 00:38, Dag Sverre Seljebotn
d.s.seljeb...@astro.uio.nowrote:
On 11/09/2012 11:57 PM, Matthieu Brucher
Hi,
It's really good to see this work being done.
It would be great if this could somehow be put also into the np.einsum
function, which currently doesn't even use blas, and is consequently
substantially slower than current np.dot (timings on
On 25 October 2012 22:54, David Warde-Farley warde...@iro.umontreal.cawrote:
On Wed, Oct 24, 2012 at 7:18 AM, George Nurser gnur...@gmail.com wrote:
Hi,
I was just looking at the einsum function.
To me, it's a really elegant and clear way of doing array operations,
which
is the core
seems ~ 4-6x slower than dot or
tensordot for decent size arrays.
I suspect it is because the implementation does not use blas/lapack calls.
cheers, George Nurser.
E.g. (in ipython on Mac OS X 10.6, python 2.7.3, numpy 1.6.2 from macports)
a = np.arange(60.).reshape(1500,400)
b = np.arange
to argument arrays
clumsy, I know.
George Nurser
On 3 July 2012 02:17, Casey W. Stark caseywst...@gmail.com wrote:
Hi numpy.
Does anyone know if f2py supports allocatable arrays, allocated inside
fortran subroutines? The old f2py docs seem to indicate that the allocatable
array must be created
it incorrectly, or whether
perhaps it's only supposed to work with one output array.
--George Nurser.
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Works fine with the [...]s.
Thanks very much.
--George
On 10 August 2011 17:15, Mark Wiebe mwwi...@gmail.com wrote:
On Wed, Aug 10, 2011 at 3:45 AM, George Nurser gnur...@gmail.com wrote:
Hi,
I'm running numpy 1.6.1rc2 + python 2.7.1 64-bit from python.org on OSX
10.6.8.
I have a f2py'd
SUSE 11.3, python 2.7, gcc 4.3.4, gfortran from gcc 4.6.0, I get two failures on
commit 1439a8ddcb2eda20fa102aa44e846783f29c0af3 (head of 1.6.x
maintenance branch).
--George.
==
FAIL: Test basic arithmetic function errors
the rightmost multiplication first) dotting and term by term
multiplication could be mixed
E(d,'I',d,'i',e,'i') = sum_i d_i*d_i*e_i
I hope this is of some use.
--George Nurser
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-- Forwarded message --
From: George Nurser gnur...@gmail.com
Date: 30 July 2010 22:37
Subject: Re: [Matplotlib-users] Vectorization
To: Nicolas Bigaouette nbigaoue...@gmail.com, Discussion of
Numerical Python numpy-discussion@scipy.org
I want to do the same for the calculation
Hi Nils,
I've not tried it, but you might be able to interface with f2py your
own fortran subroutine that calls the library.
Then issue the f2py command with extra arguments -llibname
-Ldirectory with lib.
See section 5 of
http://cens.ioc.ee/projects/f2py2e/usersguide/index.html#command-f2py
matthieu.bruc...@gmail.com wrote:
If header files are provided, the work done by f2py is almost done.
But you don't know the real Fortran interface, so you still have to
use ctypes over f2py.
Matthieu
2010/2/18 George Nurser gnur...@googlemail.com:
Hi Nils,
I've not tried it, but you might be able
, which allows you to use
different variable types as arguments to what appears externally to be
the same routine. It then feeds the arguments to the appropriate
version of the routine. I don't think f2py supports this, but it would
be really useful if it could.
Regards, George Nurser
with
gfortran -E -DINTSIZE=8 file.F -o outdir/file.f
The outdir is necessary in a case-insensitive file system (like
default mac OSX) to prevent the .f files overwriting the .F file.
Alternatively, it may be possible to use some other suffix than .f,
but I've not tried that.
Then f2py file.f
George
2009/11/4 Robin robi...@gmail.com:
On Wed, Nov 4, 2009 at 2:38 PM, George Nurser gnur...@googlemail.com wrote:
Fortran can accept preprocessor directives, but f2py cannot.
You first need to preprocess a .F (or .F90) file to create a .f (or
.f90) file which you then pass to f2py
The way I
I had the same 4 errors in genfromtext yesterday when I upgraded numpy r 7539.
mac os x python 2.5.2.
--George.
2009/10/19 Pierre GM pgmdevl...@gmail.com:
On Oct 19, 2009, at 10:40 AM, josef.p...@gmail.com wrote:
I wanted to finally upgrade my numpy, so I can build scipy trunk
again, but
2009/9/25 David Huard david.hu...@gmail.com:
Hi George,
On Fri, Sep 25, 2009 at 6:55 AM, George Nurser gnur...@googlemail.com
wrote:
Hi,
I hope this is the right place to ask this.
I've found the MFDataset works well in reading NetCDF3 files, but it
appears that it doesn't work at present
There are some interesting instructions on how to make this work at
http://blog.hyperjeff.net/?p=160.
However I'm not sure that the recommendation to rename the
Apple-supplied version of numpy is consistent with previous advice
I've seen on this mailing list.
--George Nurser
binaries? But I'm
puzzled as to why specifying the fortran compiler should make any
difference -- I understood it isn't used to compile numpy.
--George.
2009/6/7 David Cournapeau da...@ar.media.kyoto-u.ac.jp:
George Nurser wrote:
running config_fc
unifing config_fc, config, build_clib, build_ext
Thanks for the quick fix.
2009/6/7 David Cournapeau da...@ar.media.kyoto-u.ac.jp:
George Nurser wrote:
Sorry, I should have said that I'd always deleted the build directories.
I now have a better idea about what the problem is.
python setup.py config_fc --fcompiler=gnu95 build_clib
Hi,
the current svn version 7039 isn't compiling for me.
Clean checkout, old numpy directories removed from site-packages..
Same command did work for svn r 6329
[george-nursers-macbook-pro-15:~/src/numpy] agn% python setup.py
config_fc --fcompiler=gnu95 build_clib --fcompiler=gnu95 build_ext
:
Configuration in numpy/distutils/misc_util.py
George.
2009/1/24 Gideon Simpson simp...@math.toronto.edu:
That's not working for me. Any thoughts on how to troubleshoot it?
-gideon
On Jan 24, 2009, at 6:18 PM, George Nurser wrote:
I did manage to get it working.
I remember that both libcblas.a
I did manage to get it working.
I remember that both libcblas.a (or a link to it) and libacml.so had
to be in the same directory.
Also I had to comment out lines 399-400 of setup.py:
# if ('NO_ATLAS_INFO',1) in blas_info.get('define_macros',[]):
# return None # dotblas
in 2.290s
OK
unittest._TextTestResult run=1005 errors=0 failures=0
George Nurser.
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2008/5/21 Pierre GM [EMAIL PROTECTED]:
Mmh, wait a minute:
* There shouldn't be any mstats.py nor morestats.py in numpy.ma any longer: I
moved the packages to scipy.stats along their respective unittests.
Right. I hadn't deleted the previous
, it is the cblas interface from
http://www.netlib.org/blas/blast-forum/cblas.tgz.
Not having to build the interface would indeed make it a whole lot easier.
George Nurser.
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I file a bug here?
Regards, George Nurser.
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I tried the (as I thought) nice compact form
In [60]: a,b = (zeros((2,)),)*2
But...
In [61]: b[0] = 2
In [62]: a
Out[62]: array([ 2., 0.])
a and b are the _same_ array
But
In [68]: a,b = (zeros((2,)),zeros((2,)))
In [69]: b[0] = 2
In [70]: a
Out[70]: array([ 0., 0.])
is OK. a b are
On 15/11/2007, Timothy Hochberg [EMAIL PROTECTED] wrote:
On Nov 15, 2007 9:11 AM, Hans Meine [EMAIL PROTECTED] wrote:
Am Donnerstag, 15. November 2007 16:29:12 schrieb Warren Focke:
On Thu, 15 Nov 2007, George Nurser wrote:
It looks to me like
a,b = (zeros((2,)),)*2
at this.
George Nurser.
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Hi Andre,
I've downloaded bpycdf and it works very nicely with numpy; thanks
very much for all your effort.
One small problem; I'm probably being stupid, but I cannot see how to
set a _Fillvalue as Float32.
regards, George Nurser.
On 12/02/07, Andre Gosselin [EMAIL PROTECTED] wrote:
A small
somebody managed this for python 2.3 in 2003:
http://mail.python.org/pipermail/c++-sig/2003-October/005824.html
--George Nurser.
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