On Sun, Mar 21, 2010 at 1:13 PM, Sebastian Walter
sebastian.wal...@gmail.com wrote:
On Fri, Mar 19, 2010 at 11:18 PM, David Warde-Farley d...@cs.toronto.edu
wrote:
On 19-Mar-10, at 1:13 PM, Anne Archibald wrote:
I'm not knocking numpy; it does (almost) the best it can. (I'm not
sure of the
la, 2010-03-20 kello 17:36 -0400, Anne Archibald kirjoitti:
I was in on that discussion. My recollection of the conclusion was
that on the one hand they're useful, carefully applied, while on the
other hand they're very difficult to reliably detect (since you don't
want to forbid operations on
On 22 March 2010 14:42, Pauli Virtanen p...@iki.fi wrote:
la, 2010-03-20 kello 17:36 -0400, Anne Archibald kirjoitti:
I was in on that discussion. My recollection of the conclusion was
that on the one hand they're useful, carefully applied, while on the
other hand they're very difficult to
On Fri, Mar 19, 2010 at 11:18 PM, David Warde-Farley d...@cs.toronto.edu
wrote:
On 19-Mar-10, at 1:13 PM, Anne Archibald wrote:
I'm not knocking numpy; it does (almost) the best it can. (I'm not
sure of the optimality of the order in which ufuncs are executed; I
think some optimizations
A Friday 19 March 2010 18:13:33 Anne Archibald escrigué:
[clip]
What I didn't go into in detail in the article was that there's a
trade-off of processing versus memory access available: we could
reduce the memory load by a factor of eight by doing interpolation on
the fly instead of all at
On 20 March 2010 06:32, Francesc Alted fal...@pytables.org wrote:
A Friday 19 March 2010 18:13:33 Anne Archibald escrigué:
[clip]
What I didn't go into in detail in the article was that there's a
trade-off of processing versus memory access available: we could
reduce the memory load by a
Anne Archibald wrote:
I'm not knocking numpy; it does (almost) the best it can. (I'm not
sure of the optimality of the order in which ufuncs are executed; I
think some optimizations there are possible.)
Ufuncs and reductions are not performed in a cache-optimal fashion, IIRC
dimensions are
Pauli Virtanen wrote:
Anne Archibald wrote:
I'm not knocking numpy; it does (almost) the best it can. (I'm not
sure of the optimality of the order in which ufuncs are executed; I
think some optimizations there are possible.)
Ufuncs and reductions are not performed in a cache-optimal fashion,
On 20 March 2010 14:56, Dag Sverre Seljebotn
da...@student.matnat.uio.no wrote:
Pauli Virtanen wrote:
Anne Archibald wrote:
I'm not knocking numpy; it does (almost) the best it can. (I'm not
sure of the optimality of the order in which ufuncs are executed; I
think some optimizations there are
On Sat, Mar 20, 2010 at 8:22 PM, Anne Archibald
peridot.face...@gmail.com wrote:
On 20 March 2010 14:56, Dag Sverre Seljebotn
da...@student.matnat.uio.no wrote:
Pauli Virtanen wrote:
Anne Archibald wrote:
I'm not knocking numpy; it does (almost) the best it can. (I'm not
sure of the
On 20 March 2010 16:18, Sebastian Haase seb.ha...@gmail.com wrote:
On Sat, Mar 20, 2010 at 8:22 PM, Anne Archibald
peridot.face...@gmail.com wrote:
On 20 March 2010 14:56, Dag Sverre Seljebotn
da...@student.matnat.uio.no wrote:
Pauli Virtanen wrote:
Anne Archibald wrote:
I'm not knocking
On 18 March 2010 13:53, Francesc Alted fal...@pytables.org wrote:
A Thursday 18 March 2010 16:26:09 Anne Archibald escrigué:
Speak for your own CPUs :).
But seriously, congratulations on the wide publication of the article;
it's an important issue we often don't think enough about. I'm just a
Anne Archibald wrote:
(Which, honestly, makes me wonder what the point is of
building multicore machines.)
Advertising...
Oh, and having multiple cores slows down multi-threading in Python, so
that feature is worth the expense!
But a language designed
from scratch for vector calculations
On 19-Mar-10, at 1:13 PM, Anne Archibald wrote:
I'm not knocking numpy; it does (almost) the best it can. (I'm not
sure of the optimality of the order in which ufuncs are executed; I
think some optimizations there are possible.) But a language designed
from scratch for vector calculations
Hi,
Konrad Hinsen has just told me that my article Why Modern CPUs Are Starving
and What Can Be Done About It, which has just released on the March/April
issue of Computing in Science and Engineering, also made into this month's
free-access selection on IEEE's ComputingNow portal:
On 18 March 2010 09:57, Francesc Alted fal...@pytables.org wrote:
Hi,
Konrad Hinsen has just told me that my article Why Modern CPUs Are Starving
and What Can Be Done About It, which has just released on the March/April
issue of Computing in Science and Engineering, also made into this
A Thursday 18 March 2010 16:26:09 Anne Archibald escrigué:
Speak for your own CPUs :).
But seriously, congratulations on the wide publication of the article;
it's an important issue we often don't think enough about. I'm just a
little snarky because this exact issue came up for us recently -
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