Date: Thu, 12 Nov 2009 17:31:22 +0100 From: =?utf-8?Q?Dag-Erling_Sm=C3=B8rgrav?= <des@des.no> To: Bruce Evans <brde@optusnet.com.au> Cc: src-committers@FreeBSD.org, d@delphij.net, Peter Jeremy <peterjeremy@acm.org>, svn-src-all@FreeBSD.org, Xin LI <delphij@FreeBSD.org>, svn-src-head@FreeBSD.org Subject: Re: svn commit: r198848 - head/bin/ps Message-ID: <86vdhfzov9.fsf@ds4.des.no> In-Reply-To: <20091113022937.P1408@besplex.bde.org> (Bruce Evans's message of "Fri, 13 Nov 2009 03:02:45 %2B1100 (EST)") References: <200911030928.nA39SjLx085597@svn.freebsd.org> <20091103214231.H23957@delplex.bde.org> <4AF4B6B2.3090706@delphij.net> <20091111230915.B3510@besplex.bde.org> <20091112050515.GA15002@server.vk2pj.dyndns.org> <86d43n23r0.fsf@ds4.des.no> <20091113022937.P1408@besplex.bde.org>
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Bruce Evans <brde@optusnet.com.au> writes: > Can you imagine NCPU hitting a power wall or other technical barrier at > not much larger than 64? Do you have any idea how many threads a modern GPU has? We're talking high three to low four digits per die... SGI built a 51,200-core single system image Itanium cluster for NASA. Supposedly, it runs a stock Linux kernel. Closer to home, the Sun T2 has 64 threads per die, and there are four-way T2 systems (256 threads) on the market already. DES --=20 Dag-Erling Sm=C3=B8rgrav - des@des.no
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