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From: Laurent.POREZ_at_[hidden]
Date: 2006-04-25 04:58:02


Before starting programs on my cluster, I want to check on every CPU if it is up and able to run MPI applications.

For this, I use a kind of 'ping' program that just send a message saying 'I'm OK' tu a superviser program.
The 'ping' program is sent by the superviser on each CPU by the MPI_Comm_spawn_multiple command.

It works fine when every CPU is up, but when one is down, my superviser stops when calling the MPI_Comm_spawn_multiple command.

So the questions are :
* 'What am I doing wrong ?'
* 'Is there a other way to check my CPUs ?'

Thanks for your help.