[erlang-questions] advices for itanium compilation
Thu Mar 4 13:59:18 CET 2010
Angel Alvarez writes:
> El Miércoles, 3 de Marzo de 2010 21:21:52 Mikael Pettersson escribió:
> > Angel <> 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.
> 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).
I'm assuming this runs RHEL 4 AS, in which case it's a 2.6.9-based kernel.
Most likely that kernel doesn't present any cpu topology, or does it in a way
incompatible with the /sys parsing code in erts/lib_src/common/erl_misc_utils.c.
(Welcome to the /sys unstable ABI.)
If it was me I'd upgrade the kernel ASAP to something less ancient, but I'm
assuming you don't have the option to do that.
> this machine has 6 bricks with two itanium 2 cpus per brick, but i cant figure how to spec the layout...
> this gets nothing...
I can't help you with that one.
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