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allegro Migration In may 2015, the upgraded allegro cluster is set online. The list of new features includes * OS Upgrade Debian Jessie * new scheduler ( …

Cluster Queue Management The cluster queue is managed by the Slurm Workload Manager. The system knows the following client commands (besides others): sbatch : Su…

Cook Book: Job Arrays Job arrays allow you to create many jobs from one qsub command. You generate them by calling qsub with the t parameter to which you can pas…

Selecting Nodes Classes Node Features Nodes can be selected by adding requirements to your job scripts. Such requirements might be a number of processors per nod…

Selecting Nodes Classes Node Properties Nodes can be selected by adding requirements to your job scripts. Such requirements might be a number of processors per n…

Cook Book: Selecting Queues Available Partitions You can get a list of available partitions by typing scontrol show partitions. Then you can select the partition…

Cook Book: Selecting Queues Using the default queue batch Jobs of a length up to 2 hours can be added to the batch queue. No special action is required, but you …

Stdout / Stderr Munging Unix applications use the standard output and standard error stream for presenting messages to the user and logging. In the batch processi…

Stdout / Stderr Munging Unix applications use the standard output and standard error stream for presenting messages to the user and logging. In the batch processi…

For the impatient 1 login to allegro 1 copy your data, if necessary (allegro home) 1 submit job 1 check job $ ssh allegro $ MYSELF=$(whoami) $ mkdir …

For the impatient 1 login to adagio or allegro 1 copy your data, if necessary (allegro home) 1 submit job 1 check job $ ssh allegro # or ssh adagio …

The allegro cluster consists of different node types interconnected with InfiniBand. See the following list for details. NodeName Sockets:Threads:Cores Logi…

Infiniband Every compute node and also the storage nodes are equipped with Mellanox MT26428 QuadDataRate InfiniBand controllers guaranteeing high bandwidth and l…

MPI In a few cases users experienced random like application crashes. In these cases usage of the extra parameter " mca orte_base_help_aggregate 0 verbose" for…

Partition MaxNodes DefaultTime MaxTime MaxMemPerCPU Access micro 1 01 h 02 h 1000 MB login_allegro small 1 01 h 02 d 3000 MB l…

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Statistics for Cluster Web Month: Topic views: Topic saves: File uploads: Most popular topic views: Top contributors for topic save and uploads: …