#9285: Challenge: iterating through E8 in 5 minutes
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Reporter: nthiery | Owner: sage-combinat
Type: enhancement | Status: new
Priority: major | Milestone: sage-wishlist
Component: combinatorics | Keywords: Coxeter groups, Chevie
Author: | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
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The current code for iterating trough all elements of a Coxeter group is
currently ridiculously slow. For E8, it should take no more than a couple
minutes, as Franck Lubeck's reported was possible in GAP.
There are several routes to this end, which all deserve to be explored:
* Using GAP's code; this will require at least fixing a {{{select}}}
issue in GAP's interface (TODO: add ticket), if not using libGAP
* Optimizing the underlying CombinatorialFreeModule's code
* Optimizing the generic Coxeter group code
* Using properly Coxeter 3
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/9285>
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