Hi List, I am testing to see if Rmpi work on our cluster. I load Rmpi and try a simple test: > library(Rmpi) > mpi.spawn.Rslaves(nslaves = 4) *** caught segfault *** address 0x248cba8, cause 'memory not mapped' Traceback: 1: .Call("mpi_comm_spawn", as.character(slave), as.character(slavearg), as.integer(nslaves), as.integer(info), as.integer(root), as.integer(intercomm ), PACKAGE = "Rmpi") 2: mpi.comm.spawn(slave = system.file("Rslaves.sh", package = "Rmpi"), slavearg = arg, nslaves = nslaves, info = 0, root = root, intercomm = intercom m) 3: mpi.spawn.Rslaves(nslaves = 4) aborting ... Anybody has an idea of why it crash my R session? We have a fairly old version of R on the cluster but the admin refuse to install a new one because of dependencies... > sessionInfo() R version 2.7.0 (2008-04-22) x86_64-unknown-linux-gnu locale: C attached base packages: [1] stats graphics grDevices utils datasets methods base other attached packages: [1] Rmpi_0.5-5