Block Data

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Article #4603

#4603

From: Charles Holden Winstead
Date: Mon, 11 Jan 1993 18:51

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This is probably an easy question, but I didn't find it in either of my
FORTRAN 77 texts.  I have a program which has a section labelled BLOCK DATA
where it defines a bunch of variables as common and fills them with data.
My question is when is this done, before execution?  Is there any official 
description of this?  Also this program contains a bunch of subroutines
that I'd like to place into separate files and link their object files at
compilation, and I was wondering how to handle common blocks and this 
block data section.

Thanks.

-Chuck


P.S.  I don't see how multiplying an inverse matrix by a column vector is 
faster than back substitution. (Previous Thread).  You don't gain the 
advantage of solving 1 at a time as with back substitution.

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Path: arc1-ca.pugleaf.net!sparky!uunet!usc!howland.reston.ans.net!zaphod.mps.ohio-state.edu!cis.ohio-state.edu!news.sei.cmu.edu!fs7.ece.cmu.edu!faraday.ece.cmu.edu!winstead
From: winstead@faraday.ece.cmu.edu (Charles Holden Winstead)
Subject: Block Data
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Organization: Electrical and Computer Engineering, Carnegie Mellon
Date: Mon, 11 Jan 1993 18:51:30 GMT
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