[erlang-questions] advices for itanium compilation

[Angel]

On Jueves, 4 de Marzo de 2010 15:53:34 Rickard Green escribió:
> 2010/3/4 Angel Alvarez <clist@REDACTED>:
> > El Miércoles, 3 de Marzo de 2010 21:21:52 Mikael Pettersson escribió:
> >> Angel <clist@REDACTED> wrote:
> >> > Some mates allowed me to play with erlang on a 16 CPU SGI
> >> > itanium with Red Hat Advanced server (SGI propack something).
> >> >
> >> > where can i pick a suitable rpm for this beast?
> >> >
> >> > Can i rebuild a normal source rpm for Redhat AS on itanium or i have
> >> > to make some croscompile...?
> >>
> >> That box should be plenty powerful enough to build Erlang natively
> >> without any cross-compilation. As for src rpms, RH AS is AFAIK fairly
> >> old so I wouldn't expect a src rpm tuned for e.g. Fedora to work as-is.
> >>
> >> Why not just download the otp_src tarball, unpack it, and build it
> >> normally? (./configure; make)
> >
> > I managed to compile the tarball... but now it cant detect the cpu
> > topology.
> >
> > erl
> > Erlang R13B04 (erts-5.7.5) [source] [64-bit] [smp:12:12] [rq:12]
> > [async-threads:0] [kernel-poll:false]
> >
> > Eshell V5.7.5  (abort with ^G)
> > 1> erlang:system_info(cpu_topology).
> > undefined
> > 2>
> >
> > this machine has 6 bricks with two itanium 2 cpus per brick, but i cant
> > figure how to spec the layout...
> >
> > L0c0p0,L1c0p1N0:L2c0p0,L3c0p1N1:L4c0p0,L5c0p1N2:L6c0p0,L7c0p1N3:L8c0p0,L9
> >c0p1N4:L19c0p0,L11c0p1N5
> >
> > this gets nothing...
> >
> >
> > Anyone can help me
> >
> > Thanks!!
> 
> erl +sct
>  L0-1p0-1N0:L2-3p2-3N1:L4-5p4-5N2:L6-7p6-7N3:L8-9p8-9N4:L19,11p19,11N5
> 
> 1> erlang:system_info(cpu_topology).
> [{node,[{processor,{logical,0}},{processor,{logical,1}}]},
>  {node,[{processor,{logical,2}},{processor,{logical,3}}]},
>  {node,[{processor,{logical,4}},{processor,{logical,5}}]},
>  {node,[{processor,{logical,6}},{processor,{logical,7}}]},
>  {node,[{processor,{logical,8}},{processor,{logical,9}}]},
>  {node,[{processor,{logical,11}},{processor,{logical,19}}]}]
> 2>

thanks for the feedback, eventually palying with options ive reached a conf 
like yours...

Now ill check if procs get spread evenly... across nodes.

/Angel


> 
> Processor identifiers are system wide and `,' separates identifiers.
> 
> Regards,
> Rickard Green, Erlang/OTP, Ericsson AB.
> 
> > --
> > No imprima este correo si no es necesario. El medio ambiente está en
> > nuestras manos. __________________________________________
> >
> > Clist UAH a.k.a Angel
> > __________________________________________
> > Primero vino el Navegador, luego fué el explorador, ahora llega el
> > Konquistador.
> >
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Most people know C is not so high level....
                ...Everybody else just got assembler overdose