Update karolina-slurm.md

docs.it4i/general/karolina-slurm.md

@@ -35,6 +35,10 @@ On Karolina cluster
 * all cpu queues/partitions provide full node allocation, whole nodes (all node resources) are allocated to a job.
 * other queues/partitions (gpu, fat, viz) provide partial node allocation. Jobs' resources (cpu, mem) are separated and dedicated for job.
 
+!!! important "Partial node allocation and Security"
+    Division of nodes means that if two users allocate a portion of the same node, they can see each other's running processes.
+    If this solution is inconvenient for you, consider allocating a whole node.
+
 ## Using CPU Queues
 
 Access [standard compute nodes][4].