It seems that using GDB with MPI is a bit tricky. I read the FAQ about that.
Please see the post at https://gcc.gnu.org/ml/gcc-help/2016-09/msg00078.html
>i guess your gdb is also a bit too old to support all operations on a core
>(fwiw, i am able to do that on RHEL7)
This is a Rocks-6 and the GBD is 7.2. It seems that it doesn't support
"info proc mapping" command
I will try your suggestion by modifying the code. Meanwhile do you have any
comment about that post (the link above)?
users mailing list