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List:       sbcl-help
Subject:    Re: [Sbcl-help] high-performance access to arrays
From:       rif <rif () MIT ! EDU>
Date:       2007-04-28 14:49:58
Message-ID: 200704281449.l3SEnwJv019760 () five-percent-nation ! mit ! edu
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> I'm looking for the most high-performance access to 1D and 2D arrays in 
> SBCL. The operations I am interested in are: arbitrary access to any 
> cell, copying of fragments (lines or rectangles) from one array to 
> another and transferring the data to a foreign functions (which, as I 
> expect, can be made by allocating a foreign array and copying the data 
> into it). The arrays contain bytes/dwords/floating-point 
> numbers/structures. So I suppose that in each case SBCL would be able to 
> allocate a single chunk of memory with all the objects in-lined.

Note that as far as I know, there is no way to get SBCL to allocate an
array of structures "in line".  You will get an array of pointers to
structures.  Numbers are a different story.

rif


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