On Mar 27, 2009, at 12:08 AM, Rick Bilonick wrote: > I am trying to install the R package "Rmpi" which needs libmpi. I've > installed openmpi and lam in Centos 5.2: > > [root at rab45-1 /]# rpm -qv openmpi > openmpi-1.2.5-5.el5 > openmpi-1.2.5-5.el5 > [root at rab45-1 /]# rpm -qv lam > lam-7.1.2-14.el5 > lam-7.1.2-14.el5 > > But I get the following error message when trying to install Rmpi: > > /usr/bin/ld: skipping incompatible /usr/lib/lam/lib/libmpi.so when > searching for -lmpi > > I'm not sure what else to install/uninstall to fix this. > > Rick B. > Is Rmpi packaged somehow or are you getting it from CRAN? The web site http://www.stats.uwo.ca/faculty/yu/Rmpi/ suggests it should work with either LAM-MPI or OpenMPI or even MPICH2 Have you installed the mpi-selector RPM and set it up? This will set up LD_LIBRARY_PATH to the selected MPI version. But I don't know if it will fix your issue. Tony Schreiner Boston College