On Fri, Feb 25, 2011 at 06:12:15PM +0100, Nicolas M. Thiery wrote:
> - What would be an efficient implementation of hashing for free
>module elements? The one you implemented in AmbientSpace can
>be 10 times faster than the default one provided by SageObject and
>using repr. So it wo
Hi Dan,
I have just been through your #7922 patches, and put a reviewers patch
in the Sage-Combinat queue:
trac_7922-review-nt.patch
Altogether it looks good. I did a few changes, and also added a series
of comments and suggestions. Please check them out, and decide which
ones yo
> - Is it reasonnable that hash is called 4 000 000 times in your
>example? Are there huge elements being manipulated?
No, I don't think that is reasonable. So there must be something
fishy going on.
The character of A7 (SL(8)) in question has 792 weights with nonzero
coefficient. This is n
Hi Dan!
On Thu, Feb 10, 2011 at 09:35:08AM -0800, Daniel Bump wrote:
> I am returning to the question of timing issues with #7922.
>
> I recall that for a variety of branching rules, I ran tests
> with and without the test, and obtained the following
> results:
>
> Old Code
I am returning to the question of timing issues with #7922.
I recall that for a variety of branching rules, I ran tests
with and without the test, and obtained the following
results:
Old Code48 seconds
New Code25 seconds
Old Code, cache=true18 seconds
This is
