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Re: [Help-gsl] What is the purpose of the stride?
From: |
Marco Maggi |
Subject: |
Re: [Help-gsl] What is the purpose of the stride? |
Date: |
Fri, 18 Sep 2009 07:38:02 +0200 |
"Jim Ward" wrote:
> What is the purpose of the stride? Can someone give me an
> example when the stride wouldn't be 1?
I assume you refer to the stride of vectors: It is a feature
that allows you the use a vector as a view over a matrix
column or diagonal. The matrix:
1 2 3
4 5 6
7 8 9
is laid out in memory as:
1 2 3 4 5 6 7 8 9
taking initial offset 1 and stride 3, you see it as:
2 5 8
which is a column; taking offset 0 and stride 4, you see it
as:
1 5 9
which is a diagonal.
--
Marco Maggi