Add Hosts and Create a Cluster

Before using the platform, you need to create a cluster. This guide explains how to quickly add hosts and create an Fsched cluster from those hosts.

Prerequisites

• You have the platform administrator account and login URL, and you are logged in.
• You have prepared at least two hosts, and you have credentials for a user with sudo privileges on those hosts.
• Hosts have the minimum required dependencies installed. See Install Minimum Node Dependencies.
• A subnet has been created. See Create a Subnet.

Add Hosts

1. Log in to the platform.

2. In the left sidebar, click Host Management.

3. On the Host Management page, click Add Host.

4. On the Add Host page, fill in the host configuration:

   Parameter	Example	Description
   Billing type	Subscription	Host billing method. Subscription is used as the example here.
   Subnet	su-1723xxxxxx	The subnet where the host resides. The host IP address must fall within the subnet CIDR block.
   Host group	defaultNodeGroup	Hosts can be grouped and authorized to users by group. Select the group this host belongs to. Use the default host group in this example.
   IP:SSH port	192.168.1.[1-10]:22	Enter a host IP (or IP range) and port, then press Enter to confirm.
   Login credential	Password or key	Provide the username/password/key. If the user is not root, the user must be able to switch to root without a password.

   Keep other settings as default.

5. Click Confirm.

6. Wait 5 to 15 minutes. On the Host Management page, check the status of the newly added hosts. After they move from creating to running, proceed to the next step.

Create a Cluster

1. On the home page under Quick Navigation, select Create Cluster.

2. Choose a cluster template, then click Use.

3. On the Create Cluster page, fill in the hardware configuration:

   Section	Parameter	Description
   Cluster type	Fsched	Create a cluster with the Fastone scheduler.
   Compute partition	Node configuration	Select one or more nodes to join the compute partition. Nodes in this partition execute HPC workloads.
   Login partition	Node configuration	Optional. Select one or more nodes to join the login partition. Nodes in this partition are used for user logins and job submission.
   Head partition	Node configuration	Required. Select one node to join the head partition. Nodes in the head partition are responsible for job scheduling.

   Keep other settings as default.

4. At the bottom of the pinned configuration summary on the right, click Submit.

Result

Wait 5 to 15 minutes. On the cluster management page, check the new cluster status. If it is running, the cluster has been created successfully.

Next Steps

• Log In to a Cluster and Submit a Job