Hi:
I recently tried to build my MPI application against OpenMPI 1.3.3. It
worked fine with OMPI 1.2.9, but with OMPI 1.3.3, it hangs part way
through. It does a fair amount of comm, but eventually it stops in a
Send/Recv point-to-point exchange. If I turn off the openib btl, it runs
to completion. Also, I built 1.3.3 with memchecker (which is very nice;
thanks to everyone who worked on that!) and it runs to completion, even
with openib active.

Our cluster consists of dual dual-core opteron boxes with Mellanox
MT25204 (InfiniHost III Lx) HCAs and a Mellanox MT47396 Infiniscale-III
switch. We're running RHEL 4.8 which appears to include OFED 1.4. I've
built everything using GCC 4.3.2. Here is the output from ibv_devinfo.
"ompi_info --all" is attached.
$ ibv_devinfo
hca_id: mthca0
       fw_ver:                         1.1.0
       node_guid:                      0002:c902:0024:3284
       sys_image_guid:                 0002:c902:0024:3287
       vendor_id:                      0x02c9
       vendor_part_id:                 25204
       hw_ver:                         0xA0
       board_id:                       MT_03B0140002
       phys_port_cnt:                  1
               port:   1
                       state:                  active (4)
                       max_mtu:                2048 (4)
                       active_mtu:             2048 (4)
                       sm_lid:                 1
                       port_lid:               1
                       port_lmc:               0x00

I'd appreciate any tips for debugging this.
Thanks,
Allen

--
Allen Barnett
Transpire, Inc
E-Mail: allen@transpireinc.com
Skype:  allenbarnett
Ph:     518-887-2930

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