2.2 Installing Torque Resource Manager

If you intend to use Torque Resource Manager 6.0.2 with Moab Workload Manager, you must run Moab version 8.0 or later. However, some Torque 6.0 functionality requires Moab 9.0 or later.

This topic contains instructions on how to install and start Torque Resource Manager (Torque).

For Cray systems, Adaptive Computing recommends that you install Moab and Torque Servers (head nodes) on commodity hardware (not on Cray compute/service/login nodes).

However, you must install the Torque pbs_mom daemon and Torque client commands on Cray login and "mom" service nodes since the pbs_mom must run on a Cray service node within the Cray system so it has access to the Cray ALPS subsystem.

See Installation Notes for Moab and Torque for Cray in the Moab Workload Manager Administrator Guide for instructions on installing Moab and Torque on a non-Cray server.

In this topic:

• 2.2.1 Prerequisites
• 2.2.2 Install Dependencies, Packages, or Clients
• 2.2.3 Install Torque Server
• 2.2.4 Install Torque MOMs
• 2.2.5 Install Torque Clients
• 2.2.6 Configure Data Management

2.2.1 Prerequisites

In this section:

• 2.2.1.A Open Necessary Ports
• 2.2.1.B Verify the hostname

2.2.1.A Open Necessary Ports

Torque requires certain ports to be open for essential communication.

• For client and pbs_mom communication to pbs_server, the default port is 15001.
• For pbs_server communication to pbs_mom, the default port is 15002.
• For pbs_mom communication to pbs_mom, the default port is 15003.

For more information on how to configure the ports that Torque uses for communication, see Configuring Ports in the Torque Resource Manager Administrator Guide for more information.

If you have a firewall enabled, do the following:

1. On the Torque Server Host:

   [root]# firewall-cmd --add-port=15001/tcp --permanent
   [root]# firewall-cmd --reload

2. On the Torque MOM Hosts (compute nodes):

   [root]# firewall-cmd --add-port=15002-15003/tcp --permanent
   [root]# firewall-cmd --reload

2.2.1.B Verify the hostname

On the Torque Server Host, confirm your host (with the correct IP address) is in your /etc/hosts file. To verify that the hostname resolves correctly, make sure that hostname and hostname -f report the correct name for the host.

2.2.2 Install Dependencies, Packages, or Clients

2.2.2.A Install Packages

On the Torque Server Host, use the following commands to install the libxml2-devel, openssl-devel, and boost-devel packages.

[root]# yum install libtool openssl-devel libxml2-devel boost-devel gcc gcc-c++

2.2.3 Install Torque Server

You must complete the prerequisite tasks and the tasks to install the dependencies, packages, or clients before installing Torque Server. See 2.2.1 Prerequisites and 2.2.2 Install Dependencies, Packages, or Clients.

On the Torque Server Host, do the following:

1. Download the latest 6.0.2 build from the Adaptive Computing website. It can also be downloaded via command line (github method or the tarball distribution).
   • Clone the source from github.
     

     If git is not installed:

     [root]# yum install git

     [root]# git clone https://github.com/adaptivecomputing/torque.git -b 6.0.2 6.0.2 
     [root]# cd 6.0.2
     [root]# ./autogen.sh

   • Get the tarball source distribution.

     [root]# yum install wget
     [root]# wget http://www.adaptivecomputing.com/download/torque/torque-6.0.2-<filename>.tar.gz -O torque-6.0.2.tar.gz
     [root]# tar -xzvf torque-6.0.2.tar.gz
     [root]# cd torque-6.0.2/

2. Run each of the following commands in order.

   [root]# ./configure
   [root]# make
   [root]# make install

   

   If tk-devel and tcl-devel packages are installed on your host, you must also use the ‑‑disable‑gui option when executing configure.

   See Customizing the Install in the Torque Resource Manager Administrator Guide for information on which options are available to customize the ./configure command.

3. Verify that the /var/spool/torque/server_name file exists and contains the correct name of the server.

[root]# echo <torque_server_hostname> > /var/spool/torque/server_name

4. Configure the trqauthd daemon to start automatically at system boot.

   [root]# cp contrib/systemd/trqauthd.service /usr/lib/systemd/system/
   [root]# systemctl enable trqauthd.service
   [root]# echo /usr/local/lib > /etc/ld.so.conf.d/torque.conf
   [root]# ldconfig
   [root]# systemctl start trqauthd.service

5. By default, Torque installs all binary files to /usr/local/bin and /usr/local/sbin. Make sure the path environment variable includes these directories for both the installation user and the root user.

[root]# export PATH=/usr/local/bin/:/usr/local/sbin/:$PATH

6. Initialize serverdb by executing the torque.setup script.

[root]# ./torque.setup root

7. Add nodes to the /var/spool/torque/server_priv/nodes file. See Specifying Compute Nodes in the Torque Resource Manager Administrator Guide for information on syntax and options for specifying compute nodes.
8. Configure pbs_server to start automatically at system boot, and then start the daemon.

   [root]# qterm
   [root]# cp contrib/systemd/pbs_server.service /usr/lib/systemd/system/
   [root]# systemctl enable pbs_server.service
   [root]# systemctl start pbs_server.service

2.2.4 Install Torque MOMs

In most installations, you will install a Torque MOM on each of your compute nodes.

See Specifying Compute Nodes or Configuring Torque on Compute Nodes in the Torque Resource Manager Administrator Guide for more information.

Do the following:

1. On the Torque Server Host, do the following:
   1. Create the self-extracting packages that are copied and executed on your nodes.

      [root]# make packages
      Building ./torque-package-clients-linux-x86_64.sh ...
      Building ./torque-package-mom-linux-x86_64.sh ...
      Building ./torque-package-server-linux-x86_64.sh ...
      Building ./torque-package-gui-linux-x86_64.sh ...
      Building ./torque-package-devel-linux-x86_64.sh ...
      Done.
      
      The package files are self-extracting packages that can be copied and executed on your production machines.  Use --help for options.

   2. Copy the self-extracting packages to each Torque MOM Host.

      Adaptive Computing recommends that you use a remote shell, such as SSH, to install packages on remote systems. Set up shared SSH keys if you do not want to supply a password for each Torque MOM Host.

      

      The only required package for the compute node is mom-linux. Additional packages are recommended so you can use client commands and submit jobs from compute nodes.

      [root]# scp torque-package-mom-linux-x86_64.sh <mom-node>:
      [root]# scp torque-package-clients-linux-x86_64.sh <mom-node>:

   3. Copy the pbs_mom startup script to each Torque MOM Host.

      [root]# scp contrib/systemd/pbs_mom.service <mom-node>:/usr/lib/systemd/system/

   

   Not all sites see an inherited ulimit but those that do can change the ulimit in the pbs_mom init script. The pbs_mom init script is responsible for starting and stopping the pbs_mom process.

2. On each Torque MOM Host, do the following:
   1. Install the self-extracting packages and run ldconfig.

      [root]# ssh root@<mom-node>
      [root]# ./torque-package-mom-linux-x86_64.sh --install
      [root]# ./torque-package-clients-linux-x86_64.sh --install
      [root]# echo /usr/local/lib > /etc/ld.so.conf.d/torque.conf
      [root]# ldconfig

   2. Configure pbs_mom to start at system boot, and then start the daemon.

      [root]# systemctl enable pbs_mom.service
      [root]# systemctl start pbs_mom.service

2.2.5 Install Torque Clients

If you want to have the Torque client commands installed on hosts other than the Torque Server Host (such as the compute nodes or separate login nodes), do the following:

1. On the Torque Server Host, do the following:
   1. Copy the self-extracting client package to each Torque Client Host.
      

      Adaptive Computing recommends that you use a remote shell, such as SSH, to install packages on remote systems. Set up shared SSH keys if you do not want to supply a password for each Torque MOM Host.

      [root]# scp torque-package-clients-linux-x86_64.sh <torque-client-host>:

   2. Copy the trqauthd startup script to each Torque Client Host.

      [root]# scp contrib/systemd/trqauthd.service <torque-client-host>:/usr/lib/systemd/system/

2. On each Torque Client Host, do the following:
   

   Many of these steps can be done from the Torque server from a remote shell, such as SSH. Set up shared SSH keys if you do not want to supply a password for each Torque Client Host.

   1. Install the self-extracting client package.

      [root]# ./torque-package-clients-linux-x86_64.sh --install
      [root]# echo /usr/local/lib > /etc/ld.so.conf.d/torque.conf
      [root]# ldconfig

   2. Enable and start the trqauthd service.

      [root]# systemctl enable trqauthd.service
      [root]# systemctl start trqauthd.service

2.2.6 Configure Data Management

When a batch job completes, stdout and stderr files are generated and placed in the spool directory on the master Torque MOM Host for the job instead of the submit host. You can configure the Torque batch environment to copy the stdout and stderr files back to the submit host. See Configuring Data Management in the Torque Resource Manager Administrator Guide for more information.

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