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List:       sbcl-help
Subject:    Re: [Sbcl-help] Allocating aligned memory
From:       Stelian Ionescu <sionescu () cddr ! org>
Date:       2015-03-11 15:34:51
Message-ID: 1426088091.2391190.238939037.3E54B39B () webmail ! messagingengine ! com
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> I would like allocate memory suitable to processing via SSE/AVX
> instructions.  If there a way to request that data part of
> a vector or matrix is aligned on 16 byte or 32 byte boundary.
> One way to do this is to allocate foreign memory.  However,
> I would like to keep lage part of computation on Lisp side
> so I prefer Lisp object which can be passed to normal Lisp
> functions.

The static-vectors library can almost do that: I just need to use
posix_memalign() to allocate memory. I'll try to implement it this
weekend.

-- 
Stelian Ionescu a.k.a. fe[nl]ix
Quidquid latine dictum sit, altum videtur.
http://common-lisp.net/project/iolib

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