From: Valery Pipin <pip@iszf.irk.ru> To: ALT Linux Team development discussions <devel@lists.altlinux.org> Subject: Re: [devel] atlas is broken again? Date: Tue, 5 Apr 2011 01:02:17 -0700 Message-ID: <201104050102.18009.pip@iszf.irk.ru> (raw) In-Reply-To: <4D9AC7A7.1030306@mmedia2.kemsu.ru> В сообщении от 5 апреля 2011 00:41:27 автор REAL написал: > 05.04.2011 14:34, Valery Pipin пишет: > >> Из сизифа? > > > > Отсюда, http://www.enthought.com/ > > А зачем, если есть в сизифе? > сизифовский медленный, и к тому же периодически ломается. В enthought сборке использована MKL и линейная алгебра реально паралеллится если есть куда. > >> покажите rpm -qi libatlas > > > > я писал что я вернулся е прежнюю, рабочую, версию > > Тогда я вообще в растерянности, ибо ни провала в производительности, > ни в падении ничего не заметил. Возвращаемся к первому сообщению. Вот это с libatlas-3.9.35: IPython 0.10 -- An enhanced Interactive Python. ? -> Introduction and overview of IPython's features. %quickref -> Quick reference. help -> Python's own help system. object? -> Details about 'object'. ?object also works, ?? prints more. In [1]: from numpy.random import * In [2]: from numpy.linalg import * In [3]: m=randn(2000,2000) In [4]: %time U,s,V=svd(m) Ошибка сегментирования Теперь пробуем для массивов меньших размеров: In [1]: from numpy.linalg import * In [2]: from numpy.random import * In [3]: m=randn(100,100) In [4]: %time U,s,V=svd(m) CPU times: user 0.01 s, sys: 0.00 s, total: 0.01 s Wall time: 0.01 s In [6]: m=randn(200,200) In [7]: %time U,s,V=svd(m) --------------------------------------------------------------------------- LinAlgError Traceback (most recent call last) /home/vv/<ipython console> in <module>() /usr/lib/python2.6/site-packages/IPython/iplib.pyc in ipmagic(self, arg_s) 1180 else: 1181 magic_args = self.var_expand(magic_args,1) -> 1182 return fn(magic_args) 1183 1184 def ipalias(self,arg_s): /usr/lib/python2.6/site-packages/IPython/Magic.pyc in magic_time(self, parameter_s) 1969 else: 1970 st = clk() -> 1971 exec code in glob 1972 end = clk() 1973 out = None /home/vv/<timed exec> in <module>() /usr/lib64/python2.6/site-packages/numpy/linalg/linalg.pyc in svd(a, full_matrices, compute_uv) 1318 work, lwork, iwork, 0) 1319 if results['info'] > 0: -> 1320 raise LinAlgError, 'SVD did not converge' 1321 s = s.astype(_realType(result_t)) 1322 if compute_uv: LinAlgError: SVD did not converge
next prev parent reply other threads:[~2011-04-05 8:02 UTC|newest] Thread overview: 59+ messages / expand[flat|nested] mbox.gz Atom feed top 2011-04-05 3:44 Valery Pipin 2011-04-05 3:59 ` REAL 2011-04-05 4:20 ` Valery Pipin 2011-04-05 6:19 ` REAL 2011-04-05 6:41 ` Valery Pipin 2011-04-05 6:53 ` REAL 2011-04-05 7:02 ` Valery Pipin 2011-04-05 7:14 ` REAL 2011-04-05 7:34 ` Valery Pipin 2011-04-05 7:41 ` REAL 2011-04-05 8:02 ` Valery Pipin [this message] 2011-04-05 8:20 ` REAL 2011-04-05 17:51 ` Valery Pipin 2011-04-06 3:22 ` REAL 2011-04-06 4:54 ` Valery Pipin 2011-04-06 5:02 ` REAL 2011-04-06 5:04 ` Valery Pipin 2011-04-06 5:15 ` REAL 2011-04-06 5:49 ` Valery Pipin 2011-04-06 6:05 ` REAL 2011-04-06 7:28 ` REAL 2011-04-06 8:36 ` Valery Pipin 2011-04-06 8:47 ` REAL 2011-04-06 8:53 ` REAL 2011-04-06 15:47 ` Valery Pipin 2011-04-06 16:05 ` REAL 2011-04-08 1:52 ` Valery Pipin 2011-04-08 4:07 ` REAL 2011-04-08 4:17 ` Valery Pipin 2011-04-08 5:09 ` REAL 2011-04-08 5:31 ` Valery Pipin 2011-04-08 6:09 ` REAL 2011-04-08 6:44 ` Valery Pipin 2011-04-08 7:08 ` REAL 2011-04-08 8:25 ` REAL 2011-04-09 1:09 ` Valery Pipin 2011-04-09 1:19 ` REAL 2011-04-09 1:52 ` Valery Pipin 2011-04-09 2:08 ` REAL 2011-04-09 9:32 ` Michael Shigorin 2011-04-09 11:22 ` REAL 2011-04-10 1:42 ` Valery Pipin 2011-04-08 5:11 ` REAL 2011-04-08 4:24 ` REAL 2011-04-08 5:43 ` Anton Farygin 2011-04-08 5:47 ` REAL 2011-04-08 6:11 ` Anton Farygin 2011-04-08 6:20 ` REAL 2011-04-08 10:01 ` REAL 2011-04-08 10:05 ` REAL 2011-04-08 10:08 ` Anton Farygin 2011-04-08 10:35 ` REAL 2011-04-08 10:53 ` REAL 2011-04-08 11:00 ` REAL 2011-04-08 11:01 ` Anton Farygin 2011-04-08 11:12 ` REAL 2011-04-06 8:19 ` REAL 2011-04-07 4:54 ` REAL 2011-04-07 5:20 ` Valery Pipin
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