[O-MPI users] OpenIB module problem/questions:

[Troy Telford]

I decided to try OpenMPI using the 'openib' module, rather than 'mvapi'; however I'm having a bit of difficulty:

Linux 2.6.14 (OpenIB 2nd gen IB drivers)
OpenIB userspace tools (svn from openib.org)
OpenMPI (svn revision 8046)

I'm executing the program using:



I receive the following error:
***


--------------------------------------------------------------------------
No available btl components were found!
***



Interestingly enough, if I use



The program will execute; which is even more interesting:

***

***

Thoughts?

The test hardware is the same as in my earlier posts, the only software difference is: mpirun --prefix /usr/x86_64-gcc-3.3.3/openmpi-1.0svn/ --mca btl openib -np 100 -machinefile nodelist <program> [0,1,0][btl_openib_component.c:341:mca_btl_openib_component_init] error obtaining device context for mthca0 errno says No such file or directory The output of ompi_info is included; it appears that the openib btl component does exist, however. mpirun --prefix /usr/x86_64-gcc-3.3.3/openmpi-1.0svn/ --mca ptl openib -np 100 -machinefile nodelist <program> * There is no openib ptl (or at least, there isn't one in ompi_info, nor is there a corresponding mca_ptl_openib.la or .so file) * Even though 'openib' is specified, the TCP interface is used. (not a bug, but a feature?) * Before execution begins, I receive this error (but execution then continues): [0,1,1][btl_openib_component.c:341:mca_btl_openib_component_init] error obtaining device context for mthca0 errno says No such file or directory

ompi_info.out
Description: Binary data