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reviewed interactive access

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feichtinger
2019-06-28 16:55:01 +02:00
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pages/merlin6/accessing-merlin6/accessing-interactive-nodes.md
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@ -11,19 +11,19 @@ permalink: /merlin6/interactive.html
## Login nodes description
The Merlin6 login nodes are the official machines for accessing the Merlin6 cluster.
The Merlin6 login nodes are the official machines for accessing the recources of Merlin6.
From these machines, users can submit jobs to the Slurm batch system as well as visualize or compile their software.
The Merlin6 login nodes are the following:
| Hostname | SSH | NoMachine | #cores | CPU | Memory | Scratch | Scratch Mountpoint |
| ------------------- | --- | --------- | ----------- |:---------------------------------- | ------ | ---------- |:------------------ |
| merlin-l-01.psi.ch | yes | - | 32 (2 x 16) | 2 x Intel Xeon E5-2697A v4 2.60GHz | 512GB | 100GB SAS | ``/scratch`` |
| merlin-l-02.psi.ch | yes | yes | 32 (2 x 16) | 2 x Intel Xeon E5-2697A v4 2.60GHz | 512GB | 100GB SAS | ``/scratch`` |
| merlin-l-001.psi.ch | - | - | 44 (2 x 22) | 2 x Intel Xeon Gold 6152 2.10GHz | 512GB | 2.0TB NVMe | ``/scratch`` |
| merlin-l-002.psi.ch | - | - | 44 (2 x 22) | 2 x Intel Xeon Gold 6142 2.10GHz | 512GB | 2.0TB NVMe | ``/scratch`` |
| Hostname | SSH | NoMachine | #cores | CPU | Memory | Scratch | Scratch Mountpoint |
| ------------------- | --- | --------- | ----------- | :---------------------------------- | ------ | ---------- | :------------------ |
| merlin-l-01.psi.ch | yes | - | 32 (2 x 16) | 2 x Intel Xeon E5-2697A v4 2.60GHz | 512GB | 100GB SAS | ``/scratch`` |
| merlin-l-02.psi.ch | yes | yes | 32 (2 x 16) | 2 x Intel Xeon E5-2697A v4 2.60GHz | 512GB | 100GB SAS | ``/scratch`` |
| (merlin-l-001.psi.ch) | - | - | 44 (2 x 22) | 2 x Intel Xeon Gold 6152 2.10GHz | 512GB | 2.0TB NVMe | ``/scratch`` |
| (merlin-l-002.psi.ch) | - | - | 44 (2 x 22) | 2 x Intel Xeon Gold 6142 2.10GHz | 512GB | 2.0TB NVMe | ``/scratch`` |
* ``merlin-l-001`` and ``merlin-l-002`` are not in production yet, hence SSH access is not possible.
* Please note that``merlin-l-001`` and ``merlin-l-002`` are not in production yet.
---
@ -31,9 +31,9 @@ The Merlin6 login nodes are the following:
### SSH Access
For interactive command access, use a SSH client. We recommend to use X11 forwarding, despite is not the official way supported. It may help opening X applications.
For interactive command shell access, use an SSH client. We recommend to activate SSH's X11 forwarding to allow you to use graphical applications (e.g. a text editor. For more performant graphical access, refer to the sections below).
For Linux:
E.g. for Linux:
```bash
ssh -XY $username@merlin-l-01.psi.ch
@ -46,9 +46,10 @@ X applications are supported in the login nodes and X11 forwarding can be used f
* PSI desktop configuration issues must be addressed through **[PSI Service Now](https://psi.service-now.com/psisp)** as an *Incident Request*.
* Ticket will be redirected to the corresponding Desktop support group (Windows, Linux).
### NoMachine Access
### More efficient graphical access using a **NoMachine** client
X applications are supported in the login nodes and can run efficiently through a **NoMachine** client. This is the officially supported way to run more demanding X applications on Merlin6. The client software can be downloaded from [the Nomachine Website](https://www.nomachine.com/product&p=NoMachine%20Enterprise%20Client).
X applications are supported in the login nodes and can run through NoMachine. This service is officially supported in the Merlin6 cluster and is the official X service.
* NoMachine *client installation* support has to be requested through **[PSI Service Now](https://psi.service-now.com/psisp)** as an *Incident Request*.
* Ticket will be redirected to the corresponding support group (Windows or Linux)
* NoMachine *client configuration* and *connectivity* for Merlin6 is fully supported by Merlin6 administrators.