The group you are posting to is a Usenet group. Messages posted to this group will make your email address visible to anyone on the Internet.
Your reply message has not been sent.
Your post was successful
 |
Newsgroups: comp.lang.fortran
From: Craig Powers <craig.pow...@invalid.invalid>
Date: Wed, 18 Jun 2008 13:08:26 -0400
Local: Wed, Jun 18 2008 1:08 pm
Subject: Re: Global array operations: a performance hit?
glen herrmannsfeldt wrote: It might be part of an outer loop that is executed many times. I had > Craig Powers wrote: >> glen herrmannsfeldt wrote: >>> If speed is that important, you might try reversing the >> I suspect, given the context, that outside of this initialization, the > That is the problem with posting only a small part. > Though I might wonder if this is such a small part, how one something of this nature happen in one of my programs---not down to the subscripting, but simple initialization-to-zero. A bunch of stuff needed to be initialized to zero on each pass through the outer loop, and doing it using DO loops (which also, incidentally, cut out initialization of unused portions of a ragged array) realized a substantial savings in program execution time for certain input sets. > It seemed worth a reminder, just in case. Certainly true. You must Sign in before you can post messages.
To post a message you must first join this group.
Please update your nickname on the subscription settings page before posting.
You do not have the permission required to post.
| |||||||||||||