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____/ Homer on Tuesday 03 February 2009 22:43 : \____
>
>
> Verily I say unto thee, that nessuno@xxxxxxxxxxxxxxxxxxx spake thusly:
>> "All BlueGene machines run Linux..."
>
> Partly true, however IBM utilise their own minimal custom OS for the
> central control of all nodes, and BLRTS (BLue-gene Real Time System)
> on the compute nodes (presumably a microkernel). Linux or AIX run on
> the data nodes. Running Windows (any version other than CE) requires
> emulation, or Microsoft porting it to the PPC architecture. Possible
> but unlikely.
>
> [quote]
> 3.3 System Management Software
>
> The control infrastructure is a critical component of our design. It
> provides a separation between execution mechanisms in the BG/L core
> and policy decisions in external nodes. Local node operating systems
> (Linux for I/O nodes and BLRTS for compute nodes) implement services
> and are responsible for local decisions that do not affect overall
> operation of the machine. A "global operating system" makes all global
> and collective decisions and interfaces with external policy modules
> (e.g., LoadLeveler) and performs a variety of system management
> services, including: (i) machine booting, (ii) system monitoring, and
> (iii) job launching.
> [/quote]
>
> https://asc.llnl.gov/computing_resources/bluegenel/pdf/software.pdf
I wish Linux was not used to power weapons (or repositories thereof) that only
evaporate human civilisation.
That's not to say about who IBM traded with in the 30s.
- --
~~ Best of wishes
Roy S. Schestowitz | "The only source is Open Source"
http://Schestowitz.com | GNU is Not UNIX | PGP-Key: 0x74572E8E
http://iuron.com - proposing a non-profit search engine
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