2.2 System Requirements
This topic identifies the system requirements for your Nitro installation.
In this topic:
- 2.2.1 Hardware Requirements
- 2.2.2 Supported Operating Systems
- 2.2.3 Reprise License Manger Server Requirements
- 2.2.4 Software Requirements
- Nitro requires one or more multi-core processors per host. Generally the more processors (sockets) and/or OS cores a host has, the more tasks Nitro can execute simultaneously on each host; although this will be application-dependent.
- It is recommended that hosts should have sufficient memory to execute as many applications as possible so that Nitro can run them at a rate of one application instance per OS core (especially if they are not multi-threaded). This eliminates the need for users to have to request memory in their Nitro task definitions.
See 5.6 Task File for more information on specifying memory requirements.
2.2.2 Supported Operating Systems
Nitro supports these operating systems:
- CentOS 6.x, 7.x
- Red Hat 6.x, 7.x
- Scientific Linux 6.x, 7.x
- SUSE Linux Enterprise Server 11, 12
SUSE Linux Enterprise Server (SLES) 11 is not available as an RPM installation method.
2.2.3 Reprise License Manger Server Requirements
As of version 2.0, Nitro is a licensed software product that requires the Reprise License Manager (RLM) software to check out and check in Nitro licenses. The RLM web server/license daemon software must execute on a central server accessible by all host systems on which Nitro will execute.
The RLM software itself is extremely light-weight and does not require its own server. Meaning that you can install the RLM server on the same host as your job scheduler or resource manager server.
If your company does not already utilize an RLM, you will need to install one. See the RLM Installation documentation available from the Nitro download site.
Nitro is built with all needed libraries statically linked. This provides for a quick and simple installation and helps avoid troublesome library mismatches. No additional packages need to be installed on the compute nodes.
However, users running nitrosub and the nitrostat utility require Python 2.6.6 or later on the system from which they are running it.