OpenMPI-主机和-主机文件选项

-host ,它有效。我的意思是,这个过程跨越到我指定的主机。但是,当我指定 -hostfile ,它不起作用!!

mahmood@cluster:mpitest$ /share/apps/computer/openmpi-2.0.1/bin/mpirun -host compute-0-0,cluster -np 2 a.out
****************************************************************************
* hwloc 1.11.2 has encountered what looks like an error from the operating system.
*
* Package (P#1 cpuset 0xffff0000) intersects with NUMANode (P#1 cpuset 0xff00ffff) without inclusion!
* Error occurred in topology.c line 1048
*
* The following FAQ entry in the hwloc documentation may help:
*   What should I do when hwloc reports "operating system" warnings?
* Otherwise please report this error message to the hwloc user's mailing list,
* along with the output+tarball generated by the hwloc-gather-topology script.
****************************************************************************
Hello world from processor cluster.hpc.org, rank 1 out of 2 processors
Hello world from processor compute-0-0.local, rank 0 out of 2 processors
mahmood@cluster:mpitest$ cat hosts
cluster
compute-0-0

mahmood@cluster:mpitest$ /share/apps/computer/openmpi-2.0.1/bin/mpirun -hostfile hosts -np 2 a.out      
****************************************************************************
* hwloc 1.11.2 has encountered what looks like an error from the operating system.
*
* Package (P#1 cpuset 0xffff0000) intersects with NUMANode (P#1 cpuset 0xff00ffff) without inclusion!
* Error occurred in topology.c line 1048
*
* The following FAQ entry in the hwloc documentation may help:
*   What should I do when hwloc reports "operating system" warnings?
* Otherwise please report this error message to the hwloc user's mailing list,
* along with the output+tarball generated by the hwloc-gather-topology script.
****************************************************************************
Hello world from processor cluster.hpc.org, rank 0 out of 2 processors
Hello world from processor cluster.hpc.org, rank 1 out of 2 processors

那么问题是什么?我该如何解决?