[R] newbie question on snow/Rmpi

Dirk Eddelbuettel edd at debian.org
Fri Dec 19 17:52:30 CET 2008


On 19 December 2008 at 10:17, Whit Armstrong wrote:
| Does anyone know if these errors can be safely ignored?
| [linuxsvr.kls.corp:16242] mca: base: component_find: unable to open
| osc pt2pt: file not found (ignored)
| this is on RHEL5 w/ openMPI 1.2.7

Yes. Hao (of Rmpi fame) and I also see it on 64-bit Debian and Ubuntu, but
not on the 32-bit variants. AFAIK it has something to do with how OMPI uses dlopen
and which symbols get across to different library.

You can suppress it via

$ tail -4 /etc/openmpi/openmpi-mca-params.conf

# edd 18 Dec 2008
mca_component_show_load_errors = 0

or using the equivalent switches on the command-line or via an env. var --
see the OMPI docs.

You may want to subscribe to r-sig-hpc to ask these types of questions there.


Three out of two people have difficulties with fractions.

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