Re: postgres on a beowulf? (AMD)opteron?
Bruce Momjian <pgman@candle.pha.pa.us>
From: Bruce Momjian <pgman@candle.pha.pa.us>
To: "scott.marlowe" <scott.marlowe@ihs.com>
Cc: Ron Johnson <ron.l.johnson@cox.net>, PgSQL Performance ML <pgsql-performance@postgresql.org>
Date: 2003-05-22T21:23:41Z
Lists: pgsql-performance
scott.marlowe wrote: > On 21 May 2003, Ron Johnson wrote: > > > On Tue, 2003-05-20 at 06:27, Andrew Sullivan wrote: > > > On Mon, May 19, 2003 at 01:28:32PM -0400, george young wrote: > > > > Has anyone run postgres on a beowulf system? > > > > > > Can't be done. None of the cluster systems support cross-machne > > > shared memory (this is actually a problem for Postgres and NUMA, as > > > well, BTW). > > > > VMSclusters and Tru64 clusters do, but, of course, it has to be > > programmed for. > > > > And the licensing costs are pretty steep... > > someone was on the list last year and had gotten postgresql (sorta) > working on mosix clusters. The performance, I recall, was less than > stellar. I think they copied and locked the shared memory for each machine that needed it. -- Bruce Momjian | http://candle.pha.pa.us pgman@candle.pha.pa.us | (610) 359-1001 + If your life is a hard drive, | 13 Roberts Road + Christ can be your backup. | Newtown Square, Pennsylvania 19073