Ick - appears that got dropped a long time ago. I'll add it back in and post a CMR for 1.4 and 1.5 series.
Thanks! Ralph On Mar 21, 2011, at 11:08 AM, David Turner wrote: > Hi, > > About a month ago, this topic was discussed with no real resolution: > > http://www.open-mpi.org/community/lists/users/2011/02/15538.php > > We noticed the same problem (TV does not display the user's MAIN > routine upon initial startup), and contacted the TV developers. > They suggested a simple OMPI code modification, which we implemented > and tested; it seems to work fine. Hopefully, this capability > can be restored in future releases. > > Here is the body of our communication with the TV developers: > > ---------------------------------------------------------------------- > > Interestingly enough, someone else asked this very same question recently and > I finally dug into it last week and figured out what was going on. TotalView > publishes a public interface which allows any MPI implementor to set things > up so that it should work fairly seamless with TotalView. I found that one of > the defines in the interface is > > MPIR_force_to_main > > and when we find this symbol defined in mpirun (or orterun in Open MPI's > case) then we spend a bit more effort to focus the source pane on the main > routine. As you may guess, this is NOT being defined in OpenMPI 1.4.2. It was > being defined in the 1.2.x builds though, in a routine called totalview.c. > OpenMPI has been re-worked significantly since then, and totalview.c has been > replaced by debuggers.c in orte/tools/orterun. About line 130 to 140 > (depending on any changes since my look at the 1.4.1 sources) you should find > a number of MPIR_ symbols being defined. > > struct MPIR_PROCDESC *MPIR_proctable = NULL; > int MPIR_proctable_size = 0; > int MPIR_being_debugged = 0; > volatile int MPIR_debug_state = 0; > volatile int MPIR_i_am_starter = 0; > volatile int MPIR_partial_attach_ok = 1; > > > I believe you should be able to insert the line: > > int MPIR_force_to_main = 0; > > into this section, and then the behavior you are looking for should work > after you rebuild OpenMPI. I haven't yet had the time to do that myself, but > that was all that existed in the 1.2.x sources, and I know those achieved the > desired effect. It's quite possible that someone realized the symbol was > initialized, but wasn't be used anyplace, so they just removed it. Without > realizing we were looking for it in the debugger. When I pointed this out to > the other user, he said he would try it out and pass it on to the Open MPI > group. I just checked on that thread, and didn't see any update, so I passed > on the info myself. > > ---------------------------------------------------------------------- > > -- > Best regards, > > David Turner > User Services Group email: dptur...@lbl.gov > NERSC Division phone: (510) 486-4027 > Lawrence Berkeley Lab fax: (510) 486-4316 > _______________________________________________ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users
