#11587: update Cremona's tables for Sage
-----------------------------------------+----------------------------------
Reporter: was | Owner: cremona
Type: enhancement | Status: positive_review
Priority: major | Milestone: sage-4.7.2
Component: elliptic curves | Keywords: elliptic curves
ellcurve database
Work_issues: | Upstream: N/A
Reviewer: John Cremona, Tom Boothby | Author: R. Andrew Ohana
Merged: | Dependencies: #11642
-----------------------------------------+----------------------------------
Old description:
> John Cremona tells me that: "All data for elliptic curves of conductors
> from 130k to 180k is at
> http://www.warwick.ac.uk/staff/J.E.Cremona/ftp/data/ and also as a tar
> file at
> http://www.warwick.ac.uk/staff/J.E.Cremona/ftp/ecdata-2011-08-09.tgz
> -- not to mention at http://code.google.com/p/ecdata/ !"
>
> The goal of this ticket is to:
>
> (1) Create a new drop-in-replacement sqlite database that has the data up
> to level 10000, which will be included standard with Sage.
>
> (2) Create a new sqlite database that has the data up to level 180000,
> which will be an optional spkg.
>
> This is complicated because the current packages in Sage use ZODB. Also,
> Cremona's database format has changed somewhat.
>
> There is now a patch that depends upon #11642 (which depends upon
> #11640).
>
> You can find updated elliptic_curve and database_cremona_ellcurve spkgs
> at [http://wstein.org/home/ohanar/cremona-database/].
>
> ----
>
> New spkg: http://wstein.org/home/ohanar/cremona-
> database/elliptic_curves-0.2.spkg
>
> Apply [attachment:trac_11587.patch] to the Sage library.
>
> ----
>
> '''The new ''optional'' spkg also has to be brought into place.''' (I
> don't put a link here to not confuse the bots.)
New description:
John Cremona tells me that: "All data for elliptic curves of conductors
from 130k to 180k is at
http://www.warwick.ac.uk/staff/J.E.Cremona/ftp/data/ and also as a tar
file at
http://www.warwick.ac.uk/staff/J.E.Cremona/ftp/ecdata-2011-08-09.tgz
-- not to mention at http://code.google.com/p/ecdata/ !"
The goal of this ticket is to:
(1) Create a new drop-in-replacement sqlite database that has the data up
to level 10000, which will be included standard with Sage.
(2) Create a new sqlite database that has the data up to level 180000,
which will be an optional spkg.
This is complicated because the current packages in Sage use ZODB. Also,
Cremona's database format has changed somewhat.
There is now a patch that depends upon #11642 (which depends upon #11640).
You can find updated elliptic_curve and database_cremona_ellcurve spkgs at
[http://wstein.org/home/ohanar/cremona-database/].
----
New spkg: http://wstein.org/home/ohanar/cremona-
database/elliptic_curves-0.3.spkg
Apply [attachment:trac_11587.patch] to the Sage library.
Apply [attachment:trac_11587-depfix.patch] to Sage root.
----
'''The new ''optional'' spkg also has to be brought into place.''' (I
don't put a link here to not confuse the bots.)
--
Comment(by rohana):
I've created a new spkg that builds the cremona_mini database from
Cremona's original text file. This requires a patch to the Sage root
repository to reflect the new dependencies. I'm going to keep the optional
spkg the same since it takes >5mins to build the database.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/11587#comment:11>
Sage <http://www.sagemath.org>
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