chore: Regenerate all playbooks

nvidia/connect-three-sparks/README.md

@@ -158,15 +158,15 @@ network:
     enP2p1s0f0np0:
       dhcp4: false
       addresses:
-        - 192.168.0.2/24
+        - 192.168.1.1/24
     enp1s0f1np1:
       dhcp4: false
       addresses:
-        - 192.168.1.1/24
+        - 192.168.2.1/24
     enP2p1s0f1np1:
       dhcp4: false
       addresses:
-        - 192.168.1.2/24
+        - 192.168.3.1/24
 EOF
 
 ## Set appropriate permissions
@@ -186,19 +186,19 @@ network:
     enp1s0f0np0:
       dhcp4: false
       addresses:
-        - 192.168.2.1/24
+        - 192.168.4.1/24
     enP2p1s0f0np0:
       dhcp4: false
       addresses:
-        - 192.168.2.2/24
+        - 192.168.5.1/24
     enp1s0f1np1:
       dhcp4: false
       addresses:
-        - 192.168.0.3/24
+        - 192.168.0.2/24
     enP2p1s0f1np1:
       dhcp4: false
       addresses:
-        - 192.168.0.4/24
+        - 192.168.1.2/24
 EOF
 
 ## Set appropriate permissions
@@ -218,19 +218,19 @@ network:
     enp1s0f0np0:
       dhcp4: false
       addresses:
-        - 192.168.1.3/24
+        - 192.168.2.2/24
     enP2p1s0f0np0:
       dhcp4: false
       addresses:
-        - 192.168.1.4/24
+        - 192.168.3.2/24
     enp1s0f1np1:
       dhcp4: false
       addresses:
-        - 192.168.2.3/24
+        - 192.168.4.2/24
     enP2p1s0f1np1:
       dhcp4: false
       addresses:
-        - 192.168.2.4/24
+        - 192.168.5.2/24
 EOF
 
 ## Set appropriate permissions
@@ -254,8 +254,8 @@ bash ./discover-sparks
 Expected output similar to the below, with different IPs and node names. You may see more than one IP for each node as four interfaces (**enp1s0f0np0**, **enP2p1s0f0np0**, **enp1s0f1np1** and **enP2p1s0f1np1**) have IP addresses assigned. This is expected and does not cause any issues. The first time you run the script, you'll be prompted for your password for each node.
 ```
 Found: 192.168.0.1 (dgx-spark-1.local)
-Found: 192.168.0.3 (dgx-spark-2.local)
-Found: 192.168.1.3 (dgx-spark-3.local)
+Found: 192.168.0.2 (dgx-spark-2.local)
+Found: 192.168.3.2 (dgx-spark-3.local)
 
 Setting up bidirectional SSH access (local <-> remote nodes)...
 You may be prompted for your password for each node.

nvidia/multi-sparks-through-switch/assets/spark_cluster_setup/node_scripts/detect_and_configure_cluster_networking.py

@@ -268,6 +268,27 @@ def ip_for_2node_link(link_index: int, node_id: int, local_index_in_pair: int) -
     host = 1 + (0 if node_id == 1 else 2) + local_index_in_pair
     return f"192.168.{link_index}.{host}/24"
 
+def ip_for_3node_ring_link(link_index: int, node_id: int, local_index_in_pair: int) -> str:
+    """
+    /24 scheme for 3-node ring topology.
+
+    For each node_id:
+      network = 192.168.third_octet.node_id/24
+      third_octet = link_index * 2 + local_index_in_pair
+
+    Node 1:
+      192.168.[0, 1].1/24 -> Node 2
+      192.168.[2, 3].1/24 -> Node 3
+
+    Node 2:
+      192.168.[4, 5].1/24 -> Node 3
+      192.168.[0, 1].2/24 -> Node 1
+
+    Node 3:
+      192.168.[2, 3].2/24 -> Node 1
+      192.168.[4, 5].2/24 -> Node 2
+    """
+    return f"192.168.{link_index * 2 + local_index_in_pair}.{node_id}/24"
 
 def ip_for_switch_link(link_index: int, node_index: int, local_index_in_pair: int) -> str:
     """
@@ -602,7 +623,7 @@ def main() -> bool:
             node_id_link = 1 if local_machine_id < neighbor_machine else 2
 
             for local_idx, cfg_iface in enumerate(config_ifaces):
-                ip_cidr = ip_for_2node_link(link_index, node_id_link, local_idx)
+                ip_cidr = ip_for_3node_ring_link(link_index, node_id_link, local_idx)
                 iface_to_ip[cfg_iface] = ip_cidr
 
             print(