On Fri, 16 Nov 2012 10:18:43 -0500, John Gilmore wrote:
>
>I have not elected to screen my own house in this way; equally, I have
>not reinforced its roof against purple cows falling from the sky; I
>have judged that these two risks are exiguous here in Massachusetts.
>
Probability? I can't resist:
http://xkcd.com/1132/
>Serialization was invented to address this class of problems. We can
>make programs reentrant. Control blocks, on the other hand, are and
>will remain serially reusable. A minimal requirement for their
>integrity is that two dispatchables not access one of them
>concurrently.
>
But the serialization can be inconspicuous. IEANTRT makes do with
nothing more than the block-concurrent character of Load and STore,
given major cooperation by IEANTCR.
-- gil
----------------------------------------------------------------------
For IBM-MAIN subscribe / signoff / archive access instructions,
send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
