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From: Michael S <already5chosen@yahoo.com>
Newsgroups: comp.arch
Subject: Re: Is Intel exceptionally unsuccessful as an architecture
 designer?
Date: Sun, 22 Sep 2024 10:34:16 +0300
Organization: A noiseless patient Spider
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On Sun, 22 Sep 2024 02:12:31 -0000 (UTC)
Lawrence D'Oliveiro <ldo@nz.invalid> wrote:

> On Sun, 22 Sep 2024 02:57:21 +0300, Michael S wrote:
>=20
> > On Sat, 21 Sep 2024 23:34:40 -0000 (UTC) =20
> >> =20
> > Lawrence D'Oliveiro <ldo@nz.invalid> wrote:
> >  =20
> >> On Sat, 21 Sep 2024 13:29:31 -0700, Chris M. Thomasson wrote:
> >>  =20
> >> > CPU's that are hyper close to the memory is good wrt locality.
> >> > However, the programming for it might turn some programmers off.
> >> > NUMA like for sure. =20
> >>=20
> >> I=E2=80=99m pretty sure those multi-million-node Linux supers that fill
> >> the top of the Top500 list have a NUMA-style memory-addressing
> >> model. =20
> >=20
> > You are wrong.
> > Last ccNuma was pushed out of top100 more than a decade ago.
> > All top machines today are MPP or clusters.
> > Not that a diffference between the two is well-defined. =20
>=20
> If the difference is not =E2=80=9Cwell-defined=E2=80=9D, then how can I b=
e =E2=80=9Cwrong=E2=80=9D?

The difference between MPP and cluster is not well-defined.
The difference between ccNUMA and MPP-or-cluster is crystal clear.