On Jan 26, 2009, at 3:33 PM, Dirk Eddelbuettel wrote:
Gdb doesn't want to step into the Open MPI code; I used debugging
symbols for
both R and Open MPI that are available via -dbg packages with the
debugging
info. So descending one function at a time, I see the following
calling
sequence
MPI_Init
ompi_mpi_init
orte_init
opal_init
opal_paffinity_base_open
mca_base_components_open
open_components
where things end in the loop over oapl_list() elements. I still see a
fprintf() statment just before
if (MCA_SUCCESS == component->mca_register_component_params()) {
in the middle of the open_components function in the file
mca_base_components_open.c
Do you know if component is non-NULL and has a sensible value (i.e.,
pointing to a valid component)?
Does ompi_info work? (ompi_info uses this exact same code to find/
open components) If ompi_info fails, you should be able to attach a
debugger to that, since it's a serial and [relatively] straightforward
app.
--
Jeff Squyres
Cisco Systems
