Date: Wed, 11 Nov 1998 18:13:02 -0600 (CST) From: Steve Price <sprice@hiwaay.net> To: Satoshi Asami <asami@FreeBSD.ORG> Cc: ports@FreeBSD.ORG, msmith@FreeBSD.ORG Subject: Re: auto ports build script Message-ID: <Pine.OSF.4.02.9811111807110.9547-100000@fly.HiWAAY.net> In-Reply-To: <199811120004.QAA17185@silvia.hip.berkeley.edu>
next in thread | previous in thread | raw e-mail | index | archive | help
On Wed, 11 Nov 1998, Satoshi Asami wrote:
# * Yes they are DAG's. And yes parallelizing within a DAG might
# * be difficult to achieve, but with 746 of these little beasties
# * it is trivial to do it among them. That is, theoretically
# * all 746 could be run concurrently. :)
#
# I'm not sure I follow you here. What exactly do we have 746 of?
If you consider the dependencies for each port and you clump
them together based on these dependencies into a DAG, you end
up with 746 of them. Suppose you had 5 ports, A-E, and the
following dependencies.
A depends on B
B is standalone
C depends on A
D depends on E
E is standalone
This would form two DAGs: one with {A, B, C} and one with
{D, E}.
# * The recurse method takes care of it. It would do something
# * like this:
# *
# * 1) build C's package
# * 2) build B's pacakge
# * 3) build D's package, pkg_delete D
# * 4) build A's package, pkg_delete A B C
#
# I'm not saying your script won't work, I'm just asking how it can be
# taught to coordinate between parallel builds.
Working on it right now.
# * # * Another example of a more complex tree could be: A depends
# * # * on C, B depends on C, and C is standalone. Your approach
# * # * would do this:
# * # *
# * # * 1) build C's package and pkg_delete C
# * # * 2) pkg_add C, build A's package, pkg_delete A C
# * # * 3) pkg_add C, build B's package, pkg_delete B C
# * #
# * # Note 2 and 3 can be done in parallel.
# *
# * Yes, they can but only in separate chroot envs.
#
# Sorry, I thought I made it clear that I'm running these on different
# machines (and in different chroot envs).
Yes, you did. My point was that this approach was only
one way of achieving parallelism.
-steve
# Satoshi
#
To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-ports" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?Pine.OSF.4.02.9811111807110.9547-100000>