Hello.
In a program i am writing, i have an array which size is equal to the number of nodes in my cluster.
I made this array to keep an eye of the objects that each node has in his control and when i use it with the actual ranks of the nodes as positions ( array[node_rank]=objects;) it returns me an error and stops the execution:

rank 0 in job 10  Calliope_49755   caused collective abort of all ranks
  exit status of rank 0: killed by signal 11

However, i had freely used the variable id or node_rank  to point out a specific action for a specific node since now and never had problems.

If instead of using the ranks node as a pointer for the array, i use an integer i.e. 5, the program runs fine, but even now, 1 out of 7 executions, it returns me an error and stops. The action i am calling that keeps returning me the error is a simple abstraction (array[id]--;).

Any ideas?


PS. The array is 1d and is created by allocating memory, like this : int *array = malloc(processes * sizeof(int));

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