#13045: Deprecate cholesky_decomposition() in favor of cholesky()
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Reporter: rbeezer | Owner: jason, was
Type: defect | Status: needs_review
Priority: minor | Milestone: sage-5.1
Component: linear algebra | Resolution:
Keywords: sd40.5 | Work issues:
Report Upstream: N/A | Reviewers: Dan Drake
Authors: Rob Beezer | Merged in:
Dependencies: #12966, #13018, #11274, #13035 | Stopgaps:
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Comment (by ddrake):
Separating the caches does show us that the new routine is much faster:
{{{
sage: A= random_matrix(CDF, 200); M = A*A.conjugate_transpose()
sage: %time M.cholesky()
CPU times: user 0.01 s, sys: 0.00 s, total: 0.01 s
Wall time: 0.03 s
200 x 200 dense matrix over Complex Double Field
sage: %time M.cholesky_decomposition()
/home/drake/s/sage-5.1.beta0/local/lib/python2.7/site-
packages/IPython/Magic.py:1981: DeprecationWarning: (Since Sage Version
5.1) cholesky_decomposition() is deprecated; please use cholesky()
instead.
out = eval(code,glob)
CPU times: user 23.33 s, sys: 0.01 s, total: 23.34 s
Wall time: 23.42 s
200 x 200 dense matrix over Complex Double Field
}}}
About three orders of magnitude. Nice.
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/13045#comment:6>
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