[mpich-discuss] Hydra SIGTSTP (Ctrl+Z) handling

[Yauheni Zelenko]

Hi!

Hydra have inconsistency in SIGTSTP handling (Ctrl-Z). It's works when processes started on same host as mpiexec and not working when mpiexec start processes remotely.

Problem may be reproduced with cpi example (be sure to increase number of rectangles to make calculations long enough).

When running processes in same host as mpiexec, they will be suspended properly, and "fg" will resume execution.

When mpiexec starts processes remotely, SIGTSTP will not propogated to remote processes. So "fg" will make cpi final output visible immediately.

Problem exists in 1.3 and 1.3.1.

Eugene.

PS

Sorry, I was not able to create ticket in Trac, please do this if necessary.