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Subject: Re: [OMPI devel] How to disable paffinity
From: Ralph Castain (rhc_at_[hidden])
Date: 2010-07-05 23:56:53


According to the vxworks docs, they created a notion of "process" statin with the 6.0 release. Use rtpSpawn to launch the process and you should be okay as that is the equivalent of fork/exec.

On Jul 5, 2010, at 8:12 PM, Õž§ wrote:

> Hi Ralph ,
>
> It is really a bad news that vxworks even doesn't include rsh server. I have to write a plm component using rlogin. After going through the openmpi website ,I can only find the some useful slides,However it is really not enough . I wonder if there is a document like "how to write a component".Thank you !
>
> ÔÚ 2010Äê7ÔÂ2ÈÕ ÉÏÎç11:39£¬Ralph Castain <rhc_at_[hidden]>дµÀ£º
> The rsh component checks for the existence of "fork", which may not be present in vxworks. Is it? I'm afraid that component uses fork, so you may have to create a vxworks component that doesn't, or at least uses the equivalent.
>
>
> On Jul 1, 2010, at 9:32 PM, Õž§ wrote:
>
> > Hi Ralph,
> >
> > I just copy your code in the trunk ,it seems working well. But the
> > "mpirun ls " still stuck at the orte_plm_select ,after using ompi_info
> > ,there is no available component for plm. I think my configure option
> > is not the problem, for I use the same configure option to build the
> > program under the linux ,the rsh & slurm component are both available
> > . Maybe it is a problem of my enviroment , but I really don't know how
> > to find the condition to include rsh component.
> >
> > 2010/6/30 Ralph Castain <rhc_at_[hidden]>:
> >> You may be working off of an old version of OMPI - I updated opal_paffinity awhile ago to no longer require that a component be selected. Then you can no-build all paffinity components if you like and the system will still startup okay.
> >>
> >> I don't believe this was moved over to the 1.4 release branch - afraid you would have to use a developer's trunk tarball or svn checkout. It -might- be in the 1.5.0 release candidates, though (I haven't looked).
> >>
> >> On Jun 29, 2010, at 9:36 PM, Õž§ wrote:
> >>
> >>> Hi all ,
> >>>
> >>> I tried to run the openmpi on vxworks. Now I can run program ompi_info
> >>> etc. But it failed running "mpirun ls", the error is :
> >>> --------------------------------------------------------------------------
> >>> It looks like opal_init failed for some reason; your parallel process is
> >>> likely to abort. There are many reasons that a parallel process can
> >>> fail during opal_init; some of which are due to configuration or
> >>> environment problems. This failure appears to be an internal failure;
> >>> here's some additional information (which may only be relevant to an
> >>> Open MPI developer):
> >>>
> >>> opal_paffinity_base_select failed
> >>> --> Returned value -13 instead of OPAL_SUCCESS
> >>> --------------------------------------------------------------------------
> >>>
> >>> After using the ompi_info , I cann't find any available component for
> >>> paffinity. It seems the linux component of paffinity isn't available
> >>> . As the paffinity is not a must in openmpi . I wonder whether I can
> >>> disable the paffinity during the running of mpirun?
> >>> --
> >>> Jing Zhang
> >>> _______________________________________________
> >>> devel mailing list
> >>> devel_at_[hidden]
> >>> http://www.open-mpi.org/mailman/listinfo.cgi/devel
> >>
> >>
> >> _______________________________________________
> >> devel mailing list
> >> devel_at_[hidden]
> >> http://www.open-mpi.org/mailman/listinfo.cgi/devel
> >
> >
> >
> > --
> > Õž§
> >
> > _______________________________________________
> > devel mailing list
> > devel_at_[hidden]
> > http://www.open-mpi.org/mailman/listinfo.cgi/devel
>
>
>
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>
>
> --
> Õž§
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