#162 Examples fail to run with OpenMPI2

[Anonymous]

Error message is

rusnuc>mpiexec -n 2 ecolab ecolab_spatial.tcl
[rusnuc:09412] Process received signal
[rusnuc:09412] Signal: Segmentation fault (11)
[rusnuc:09412] Signal code: Address not mapped (1)
[rusnuc:09412] Failing at address: (nil)
[rusnuc:09412] [ 0] /lib64/libc.so.6(+0x3bf20)[0x7f0f65d42f20]
[rusnuc:09412] [ 1] /lib64/libc.so.6(+0x161241)[0x7f0f65e68241]
[rusnuc:09412] [ 2] /lib64/libc.so.6(__strdup+0xf)[0x7f0f65d95adf]
[rusnuc:09412] [ 3] /usr/lib64/mpi/gcc/openmpi2/lib64/openmpi/mca_rtc_freq.so(+0x3bf9)[0x7f0f651d0bf9]
[rusnuc:09412] [ 4] /usr/lib64/mpi/gcc/openmpi2/lib64/libopen-rte.so.20(orte_rtc_base_select+0xdc)[0x7f0f65c937fc]
[rusnuc:09412] [ 5] /usr/lib64/mpi/gcc/openmpi2/lib64/openmpi/mca_ess_hnp.so(+0x55ee)[0x7f0f65edd5ee]
[rusnuc:09412] [ 6] /usr/lib64/mpi/gcc/openmpi2/lib64/libopen-rte.so.20(orte_init+0x236)[0x7f0f65ce6f36]
[rusnuc:09412] [ 7] mpiexec(+0x75e5)[0x561fac2f15e5]
[rusnuc:09412] [ 8] mpiexec(+0x67b5)[0x561fac2f07b5]
[rusnuc:09412] [ 9] /lib64/libc.so.6(__libc_start_main+0xeb)[0x7f0f65d2dceb]
[rusnuc:09412] [10] mpiexec(+0x66da)[0x561fac2f06da]
[rusnuc:09412] End of error message
Segmentation fault (core dumped)

EcoLab does, however, run under MPICH.