[bgl-discuss] gdb server on bgl inquiry

[Yaakoub El Khamra <yye00@xxxxxxxxxxx>]

Greetings
I am a cactuscode developer (www.cactuscode.org) working on porting 
physics modules to bluegene. I am wondering if anybody has had recent 
experience debugging applications on bgl using the gdb server. The 
system admins have been kind enough to provide access to a partition and 
from the mpirun output I can see that the server has been started. I 
cannot however connect to it using gdb. The gdb in question is the one 
in /usr/bin/gdb (the only one I found actaully), my mpirun command is as 
follows:

mpirun -partition $PARTITION_NAME -exe 
'/bgl/home1/sbrandt/trial/Cactus/exe/cactus_Bench_BSSN_PUGH' -cwd 
/bgl/home1/sbrandt/trial/Cactus -np 2 -start_gdbserver 
/bgl/BlueLight/ppcfloor/dist/sbin/gdbserver.440 -verbose 4

The IBM Redbook documentation suggests I should run gdb and 'target 
remote' into the IO-Nodes, however doing that leaves me with gdb trying 
to connect (and never succeeding). If anybody can point me to more up to 
date documentation, references or has any ideas/suggestions, I would 
really appreciate all the help.

Thank you in advance
Regards
Yaakoub

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