From: Nicolas Bock <nicolasbock@gmail.com>
To: linux-assembly@vger.kernel.org
Subject: 4x4 single-precision matrix product with SSE
Date: Fri, 11 Mar 2011 15:49:52 -0700 [thread overview]
Message-ID: <4D7AA710.2030303@gmail.com> (raw)
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Hello list,
I am writing an assembly function that multiplies 2 4x4 single precision
matrices. I wrote 2 versions, one using SSE the other using SSE4.1. What
surprised me is that the SSE4.1 version fails to beat the SSE version,
it is in fact slightly slower.
Is this the right place to ask for help? If anyone is interested I can
post some code which would maybe clarify the situation a bit.
If this is not the right place, please ignore me...
nick
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next reply other threads:[~2011-03-11 22:49 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-11 22:49 Nicolas Bock [this message]
2011-03-12 8:32 ` 4x4 single-precision matrix product with SSE Frederic Marmond
[not found] ` <AANLkTimCWmanFU19admtg5q18HvCOxrdjm+9XWFT-0Zm@mail.gmail.com>
2011-03-13 20:23 ` Nicolas Bock
[not found] ` <AANLkTim-ZqzJ+2q+u=7+yRjzTf7FQDcuu-YDN=RV0H6X@mail.gmail.com>
[not found] ` <AANLkTimny0PkR0bYBjKgaH4j=_=2aL=rt=YcDjWeQCG6@mail.gmail.com>
2011-03-14 15:43 ` Fwd: " Nicolas Bock
2012-09-05 19:13 ` Nicolas Bock
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