[MPICH] how to cleanup in case of abnormal termination

[Zhengting Gan]

Hello all,

Could anyone show me how to exit MPICH cleanly in case of abnormal 
termination? For example, if the program allocated shared memory and 
semaphores and the program was terminated because of Ctrl-C (SIGINT) or 
float point error (SIGFPE), is it possible to catch the signal and let each 
process clean up its own system resource and terminates gracefully?

Thanks!
Zhengting