Error:Connecting ... failed : Invalid exchange - Protocol driver not attached
The following error messages during batch job execution may hint to an out-of-memory condition:
Error:Connecting 10.1.22.23:51388 to 10.1.17.42:50020 (rank 1476 to 4058) failed : Invalid exchange
Error:Connecting 10.1.21.49:59181 to 10.1.16.50:56717 (rank 1940 to 4520) failed : Protocol driver not attached
The given IP addresses, port and rank numbers may vary from case to case.
In order to solve the problem, try one of the solutions given in chapter Memory Optimisation: