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Subject: Re: [OMPI users] Why compilig in global paths (only) for configuretion files?
From: Jeff Squyres (jsquyres_at_[hidden])
Date: 2008-09-08 12:51:18


Short answer: yes, we do compile in the prefix path into OMPI. Check
out this FAQ entry; I think it'll solve your problem:

     http://www.open-mpi.org/faq/?category=building#installdirs

On Sep 8, 2008, at 5:33 AM, Paul Kapinos wrote:

> Hi all!
>
> We are using OpenMPI on an variety of machines (running Linux,
> Solaris/Sparc and /Opteron) using couple of compilers (GCC, Sun
> Studio, Intel, PGI, 32 and 64 bit...) so we have at least 15
> versions of each release of OpenMPI (SUN Cluster Tools not included).
>
> This shows, that we have to support an complete petting zoo of
> OpenMPI's. Sometimes we may need to move things around.
>
>
> If OpenMPI is being configured, the install path may be provided
> using --prefix keyword, say so:
>
> ./configure --prefix=/my/love/path/for/openmpi/tmp1
>
> After "gmake all install" in ...tmp1 an installation of OpenMPI may
> be found.
>
> Then, say, we need to *move* this Version to an another path, say /
> my/love/path/for/openmpi/blupp
>
> Of course we have to set $PATH and $LD_LIBRARY_PATH accordingly (we
> can that ;-)
>
> And if we tried to use OpenMPI from new location, we got error
> message like
>
> $ ./mpicc
> Cannot open configuration file /my/love/path/for/openmpi/tmp1/share/
> openmpi/mpicc-wrapper-data.txt
> Error parsing data file mpicc: Not found
>
> (note the old installation path used)
>
> That looks for me, that the install path provided with --prefix in
> configuration step, is compiled into opal_wrapper executable file
> and opal_wrapper works iff the set of configuration files is in this
> path. But after move of the OpenMP installation directory the
> configuration files aren't there...
>
> An side effect of this behaviour is the certainty that binary
> distributions of OpenMPI (RPM's) are not relocatable. That's
> uncomfortably. (Actually, this mail is initiated by the fact that
> Sun ClusterTools RPM's are not relocatable)
>
>
> So, does this behavior have an deeper sence I cannot recognise, or
> maybe the configuring of global paths is not needed?
>
> What I mean, is that the paths for the configuration files, which
> opal_wrapper need, may be setted locally like ../share/openmpi/***
> without affectiong the integrity of OpenMPI. Maybe there were were
> more places where the usage of local paths may be needed to allowe
> movable (relocable) OpenMPI.
>
> What do you mean about?
>
> Best regards
> Paul Kapinos
>
>
>
> <kapinos.vcf>_______________________________________________
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-- 
Jeff Squyres
Cisco Systems