On Jan 12, 2011, at 12:54 PM, Tena Sakai wrote: > Hi Siegmar, > > Many thanks for your reply. > > I have tried man pages you mention, but one hurdle I am running into > is orte_hosts page. I don't find the specification of fields for > the file. I see an example: > > dummy1 slots=4 > dummy2 slots=4 > dummy3 slots=4 > dummy4 slots=4 > dummy5 slots=4 > > Is the first field (dummyX) machine/node name?
Yes > What is the definition > of slots? (Max number of processes to spawn?) Yes > > Am I missing a different man page? Can you please shed some light? > > Thank you. > > Tena Sakai > tsa...@gallo.ucsf.edu > > > > > On 1/10/11 11:38 PM, "Siegmar Gross" <siegmar.gr...@informatik.hs-fulda.de> > wrote: > >> Hi, >> >>> What I want is to spawn a bunch of R slaves to other machines on >>> the network. I can spawn R slaves, as many as I like, to the local >>> machine, but I don t know how to do this with machines on the >>> network. That s what hosts parameter of mpi.spawn.Rslaves() >>> enables me to do, I think. If I can do that, then Rmpi has >>> function(s) to send command to each of the spawned slaves. >>> >>> My question is how can I get open MPI to give me those hosts >>> parameters. >> >> I am not quite sure if I understood your question, but when you >> read "man MPI_Comm_spawn" you can find the parameter "MPI_Info info" >> which allows to specify where and how to start processes. "man >> MPI_Info_create" shows you how to create an info object and "man >> MPI_Info_set" how to add a key/value pair. "man orte_hosts" shows >> you how you can build a hostfile. I do not know how to do these >> things in your language R but hopefully the information of the >> manual pages helps to solve your problem. >> >> Kind regards >> >> Siegmar >> >> _______________________________________________ >> users mailing list >> us...@open-mpi.org >> http://www.open-mpi.org/mailman/listinfo.cgi/users > > > _______________________________________________ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users
