added a new rule

rcm/docs/rules.md

-# Rules
+# Rules 
 A rule is a set of [attributes](./attributes.md) with specified values.
 
 ---
@@ -78,6 +78,20 @@ attribute name | value(s)
 [cpu_usage_total_max](./attributes.md#cpu_usage_total_max) | `LOW`
 [node_cpu_usage_min](./attributes.md#node_cpu_usage_min) | `LOW`
 
+---
+#### recommendation
+```
+The CPU usage of the job is low on all nodes. Please check if the job is running properly
+```
+#### attributes
+attribute name | value(s)
+--- | ---
+[job_nodes_amount](./attributes.md#job_nodes_amount) | `MULT`
+[req_walltime](./attributes.md#req_walltime) | `NORM`
+[mem_usage_total](./attributes.md#mem_usage_total) | `NORM`
+[cpu_usage_total_max](./attributes.md#cpu_usage_total_max) | `LOW`
+[node_cpu_usage_min](./attributes.md#node_cpu_usage_min) | `LOW`
+
 ---
 #### recommendation
 ```
@@ -137,3 +151,4 @@ attribute name | value(s)
 --- | ---
 [job_nodes_amount](./attributes.md#job_nodes_amount) | `ONE`
 [mem_swap_used](./attributes.md#mem_swap_used) | `True`
+

rcm/rules.py

@@ -41,6 +41,15 @@ RULES = [
             "node_cpu_usage_min": "LOW",
             "node_cpu_usage_min": "LOW"},
         "msg": "The CPU usage of the job is low on all nodes, please request appropriate amount of resources"},
+    {
+        "attrs": {
+            "job_nodes_amount": "MULT",
+            "req_walltime": "NORM",
+            "mem_usage_total": "NORM",
+            "cpu_usage_total_max": "LOW",
+            "node_cpu_usage_min": "LOW",
+            "node_cpu_usage_min": "LOW"},
+        "msg": "The CPU usage of the job is low on all nodes. Please check if the job is running properly"},
     {
         "attrs": {
             "job_nodes_amount": "ONE",