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[Octave-bug-tracker] [bug #53356] svd: allow 2 return arguments
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From: |
Ceral Paquet |
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Subject: |
[Octave-bug-tracker] [bug #53356] svd: allow 2 return arguments |
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Date: |
Sat, 17 Mar 2018 18:09:54 -0400 (EDT) |
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User-agent: |
Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:58.0) Gecko/20100101 Firefox/58.0 |
Follow-up Comment #6, bug #53356 (project octave):
I'm sure that works but it'd be interesting to know what happens to the unused
element of the ovl object. Some crude testing suggests it is cleaned up
properly.
A=randn(1000)+i*randn(1000);
for k=1:10;system('free -m');[U S]=svd(A,0);end
We should lose about 160Mb if the missing V argument were leaked.
Output:
++
total used free shared buff/cache
available
Mem: 7823 1432 4353 87 2037
5977
Swap: 8191 0 8191
total used free shared buff/cache
available
Mem: 7823 1511 4273 85 2038
5899
Swap: 8191 0 8191
total used free shared buff/cache
available
Mem: 7823 1493 4290 87 2039
5916
Swap: 8191 0 8191
total used free shared buff/cache
available
Mem: 7823 1493 4290 86 2039
5916
Swap: 8191 0 8191
total used free shared buff/cache
available
Mem: 7823 1496 4288 86 2039
5914
Swap: 8191 0 8191
total used free shared buff/cache
available
Mem: 7823 1480 4302 85 2041
5931
Swap: 8191 0 8191
total used free shared buff/cache
available
Mem: 7823 1477 4304 85 2040
5934
Swap: 8191 0 8191
total used free shared buff/cache
available
Mem: 7823 1477 4304 85 2041
5933
Swap: 8191 0 8191
total used free shared buff/cache
available
Mem: 7823 1508 4272 85 2042
5903
Swap: 8191 0 8191
total used free shared buff/cache
available
Mem: 7823 1541 4240 85 2042
5869
Swap: 8191 0 8191
--
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