[Bug-gsl] [bug #39473] more efficient algorithm for 3j, 6j, 9j calculations

[Patrick Alken]

URL:
  <http://savannah.gnu.org/bugs/?39473>

                 Summary: more efficient algorithm for 3j,6j,9j calculations
                 Project: GNU Scientific Library
            Submitted by: psa
            Submitted on: Fri 12 Jul 2013 04:09:04 PM GMT
                Category: Performance
                Severity: 3 - Normal
        Operating System: 
                  Status: None
             Assigned to: None
             Open/Closed: Open
                 Release: 
         Discussion Lock: Any

    _______________________________________________________

Details:

(From Alexey Illarionov)

Btw, the the algorithm of evaluation of 3j, 6j, 9j in GSL is the worst
possible. It just follows the Racah formula and does not use any
symmetry properties. See [Tuzun et all, Comp Phys Comm, 1998] for 3j,
6j algorithms.




    _______________________________________________________

Reply to this item at:

  <http://savannah.gnu.org/bugs/?39473>

_______________________________________________
  Message sent via/by Savannah
  http://savannah.gnu.org/