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institute_lorentz:institutelorentz_maris [2019/01/16 08:06] – [About the cluster] lenocilinstitute_lorentz:institutelorentz_maris [2019/12/16 10:46] – [Maris Cluster] lenocil
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 ====== Maris Cluster ====== ====== Maris Cluster ======
 +
 +:!: **__As of December 2019__** the maris cluster is being refurbished in both hardware and software. All working nodes will be gradually moved from this cluster to a new one called **xmaris**. Old nodes not suitable for the new computational environment will be left unsupported and eventually trashed away.
 +
 +Access to xmaris has not been granted automatically to all existing maris users. Please contact //support// for any questions.
 +
 +The documentation of xmaris can be found [[institute_lorentz:xmaris|here]].
 +
 +----
 +
  
 ~~NOCACHE~~ ~~NOCACHE~~
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 | maris0[69-73] | Dell PowerEdge R815 | 4 x AMD 6376 | 3.2GHz | 64 | 64 | 512 GB | ::: | | maris0[69-73] | Dell PowerEdge R815 | 4 x AMD 6376 | 3.2GHz | 64 | 64 | 512 GB | ::: |
 | maris066 | Dell PowerEdge R815 | 4 x AMD 6376 | 3.2GHz | 64 | 64 | 192 GB | ::: | | maris066 | Dell PowerEdge R815 | 4 x AMD 6376 | 3.2GHz | 64 | 64 | 192 GB | ::: |
-| maris074  | Dell PowerEdge R815 | 4 x AMD 6276 | 3.2GHz | 64 | 64 | 192 GB | ::: |+| <del>maris074</del>  | Dell PowerEdge R815 | 4 x AMD 6276 | 3.2GHz | 64 | 64 | 192 GB | ::: |
 | maris076  | Dell PowerEdge R830 | 4 x Intel Xeon E5-4640 v4 | 2.1GHz | 96 | 96 | 512 GB | INTEL | | maris076  | Dell PowerEdge R830 | 4 x Intel Xeon E5-4640 v4 | 2.1GHz | 96 | 96 | 512 GB | INTEL |
 | maris077  | Dell PowerEdge R830 | 4 x Intel Xeon E5-4640 v4 | 2.1GHz | 96 | 96 | 512 GB | ::: | | maris077  | Dell PowerEdge R830 | 4 x Intel Xeon E5-4640 v4 | 2.1GHz | 96 | 96 | 512 GB | ::: |
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 ==== Compilers and libraries ==== ==== Compilers and libraries ====
 We try to minimize the differences between your Lorentz workstation and Maris so you can be as productive as possible. A variety of compilers and libraries are available for you to use in a similar fashion to your workstation. Explore which modules are available by typing ''module avail''. For extra information take also a look at [[linux:compilers|this]] page and read the manual pages: ''man module''. We try to minimize the differences between your Lorentz workstation and Maris so you can be as productive as possible. A variety of compilers and libraries are available for you to use in a similar fashion to your workstation. Explore which modules are available by typing ''module avail''. For extra information take also a look at [[linux:compilers|this]] page and read the manual pages: ''man module''.
 +
 +If you use MPI, do not forget to use  the ''openmpi-slurm/4.0.0'' module by which you can launch your MPI applications using slurm's ''srun''.
  
 ==== Running a calculation ==== ==== Running a calculation ====
  
-All calculations must be executed via slurm. A typical pseudo session would look like+All calculations must be submitted and executed through ''slurm''. A typical pseudo-session would look like
  
-<code> +If this is the first time you use slurm, please have a look at this overview of  [[institute_lorentz:institutelorentz_maris_slurm|maris' slurm configuration]] and this [[:slurm_tutorial|short guide to slurm]] before submitting your calculations for execution.
-ssh into novamaris +
-write a slurm batch script in which you request all needed computation resources +
-submit the batch script to slurm for execution +
-</code> +
- +
-An overview of maris' slurm configuration is given [[institute_lorentz:institutelorentz_maris_slurm|here]]. +
- +
-A rough guide to slurm is [[:slurm_tutorial|here]].+
  
  
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 Further readings: [[https://virtualenv.pypa.io/en/stable/|virtualenv]] and [[https://conda.io/docs/|conda]].  Further readings: [[https://virtualenv.pypa.io/en/stable/|virtualenv]] and [[https://conda.io/docs/|conda]]. 
 +
 +:!: The package manager ''conda'' seems not to perform efficiently on large anaconda environments.
 ===== Help ===== ===== Help =====
 Help with cluster issues can be requested through the [[https://helpdesk.lorentz.leidenuniv.nl|helpdesk]]. It is strongly advised  you discuss your problem also with other Maris users because they might have helpful tips. Here follows a list of Lorentz Institute members that could be consulted for tips Help with cluster issues can be requested through the [[https://helpdesk.lorentz.leidenuniv.nl|helpdesk]]. It is strongly advised  you discuss your problem also with other Maris users because they might have helpful tips. Here follows a list of Lorentz Institute members that could be consulted for tips

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