Re: [eigen] How to obtain the matrices Q and R of a QR decomposition |

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*To*: eigen@xxxxxxxxxxxxxxxxxxx*Subject*: Re: [eigen] How to obtain the matrices Q and R of a QR decomposition*From*: Gael Guennebaud <gael.guennebaud@xxxxxxxxx>*Date*: Tue, 16 Nov 2010 15:52:56 +0100*Dkim-signature*: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:mime-version:received:in-reply-to :references:from:date:message-id:subject:to:content-type :content-transfer-encoding; bh=aUZDFqWjcvzlzZxZccj6apo/VDwA9WBAdcChBO166fY=; b=KUYF0PXHfwWYXfMdV2RkkdmbZAL7Mr5YhRXD7kQGi04XMqhb5YGLDSjmH7ku6sHWa6 TXc0rJUWgWibaWW5b1S2YYyh4cTiNAHeLb2VOVgkBsoInJBuvdmvTm+o5hkluI76NW61 X2/jJJvCDHbGvPppYk6JykvIRGPho6MLgAvHQ=*Domainkey-signature*: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :content-type:content-transfer-encoding; b=nd+9F0E5OZZNr8Ts5WoFTWrr7PoNrC3EREplyKSY5t08R7kfO6I9PFLxYzppzqUfBq v8cAJMe3MtYrWiVspZzfplznd3mhDIXNNfy8PRkH/sP9W5BwHa/qBFGXOohrLCThCkIJ t9/GZx6kZney7zvObyKP8B9FmV+us3Cg1rebk=

ok, that was a renaming issue "only". Problem fixed. gael On Tue, Nov 16, 2010 at 3:47 PM, Gael Guennebaud <gael.guennebaud@xxxxxxxxx> wrote: > this time I confirm the issue. In the meantime use -msse2 only. > > gael > > On Tue, Nov 16, 2010 at 3:40 PM, Sebastian Birk > <birk@xxxxxxxxxxxxxxxxxxxxx> wrote: >> Hi, >> >> when I compile that QR decomposition code using SSE extensions like with >> this optimization parameters >> -O3 -mtune=core2 -mfpmath=sse -msse4.1 >> the computation of the QR decomposition causes an segmentation fault, >> which I tracked back to the source line >> return pmul(a, pconj(b)); >> in the function >> template<> struct conj_helper<Packet1cd, Packet1cd, false,true> >> in SSE/Complex.h. >> >> Is this an error in Eigen or is it me again doing weird stuff? ;-) >> >> Sebastian >> >> >

**References**:**[eigen] How to obtain the matrices Q and R of a QR decomposition***From:*Sebastian Birk

**Re: [eigen] How to obtain the matrices Q and R of a QR decomposition***From:*Gael Guennebaud

**Re: [eigen] How to obtain the matrices Q and R of a QR decomposition***From:*Sebastian Birk

**Re: [eigen] How to obtain the matrices Q and R of a QR decomposition***From:*Gael Guennebaud

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