Thanks--I'll try this new version when I get back to working on
this--hopefully soon.
luke
On Tue, 23 Mar 2004, Hao Yu wrote:
> Sorry. I have not been able to update Rmpi since the version
> 0.4-4 on R site. However, I have been using and testing Rmpi
> internally since 0.4-4. Now it is version 0.4-7. See the
> attached package. It requires R 1.8.1 (no more serialize
> package requirement) and works with the newest MPI-LAM
> versions 7. It will configure automatically if a rpm package
> from www.lam-mpi.org is used. I tested it on both Redhat 9
> and Debian. At least it passed the package check without any
> warning on Redhat 9. Now the problem is that it may have
> some problems with the default lam coming with Debian
> system. This is the reason why I hesitate to release it to
> R.
>
> I am also working on it to see if #ifdef can be used to work
> MPI 1.2 specs other than LAM-MPI.
> Hopefully in a couple of months, I am able to submit a
> stable version to R.
>
> Regards,
>
> Hao
>
> PS: Rmpi should still work without serializing as long as
> native MPI calls are used. The serializing is mainly used to
> help moving an arbitrarily R object around.
>
> Ross Boylan wrote:
> >
> > On Tue, 2004-03-23 at 18:26, Ross Boylan wrote:
> > > On Tue, 2004-03-23 at 17:35, Luke Tierney wrote:
> > > > The serialize package should no longer be needed since the
> > > > functionality is now in R itself. I haven't run snow
with a new
> > > > version of Rmpi newer than 0.4-4; with that version things
worked on
> > > > my systems the last time I tried. We need to revize the
paper you
> > > > cite; when we get to that we'll hopefully have a chance
to give a
> > > > newer version of Rmpi a go.
> > > >
> > > > Best,
> > > >
> > > > luke
> > >
> > > I got 0.4-6 to work, with one tweak to eliminate the loading of
> > > serialize and one fix of my own setup.
> > >
> > > I changed the .First.Lib code in Rmpi to be
> > > if (!exists("serialize") &&
!require(serialize))
> > > stop("serialize package cannot be loaded. Exit")
> > >
> > > !exists("serialize") && is new. This is effort
to check if the
> > ^an
> > > serialize function exists (R 1.8) and skip loading the library in
that
> > > case. Since there are various ways this might be fooled, perhaps
an
> > > explicit check of the R version would be better.
> > >
> > > I'm also not sure if the R packaging mechanism makes this
easy, or
> > "this" refers to the modification to the .First.Lib that I
made.
> > > autogenerates it. This is a bit of a tricky situation, since
serialize
> > > is required for some versions of R but should not be used for the
most
> > > recent.
> > >
> > > I suspect that without this the cluster would not come up because
Rmpi
> > > would not load properly. I have not tested that.
>
>
--
Luke Tierney
University of Iowa Phone: 319-335-3386
Department of Statistics and Fax: 319-335-3017
Actuarial Science
241 Schaeffer Hall email: luke at stat.uiowa.edu
Iowa City, IA 52242 WWW: http://www.stat.uiowa.edu
