Re: [OMPI devel] running OpenMPI examples on two hosts

2011-10-12 Thread Ralph Castain
I believe the btl must include self - can't just be openib. So you need -mca btl self,openib, otherwise the proc cannot talk to itself. On Oct 12, 2011, at 12:46 PM, Bhargava Ramu Kavati wrote: > Hi, > I am using OpenMPI version 1.4.3 on CentOS5.4 machines (connected back to > back using Infin

[OMPI devel] running OpenMPI examples on two hosts

2011-10-12 Thread Bhargava Ramu Kavati
Hi, I am using OpenMPI version 1.4.3 on CentOS5.4 machines (connected back to back using Infiniband HW) I am trying to run example apps in OpenMPI using the below command. "*mpirun --prefix /usr/local/ -np 2 --mca btl openib --mca btl_openib_cpc_include rdmacm -hostfile tmp_host_file ring_c*" Her