Breniac hardware ================ Breniac is the VSC's Tier-1 cluster hosted by KU Leuven. .. include:: breniac_login_nodes.rst Hardware details ---------------- - 408 skylake nodes - 2 Xeon Gold 6132 CPU\@2.6GHz, 14 cores each - 192 GB RAM (:ref:`memory bandwith and latency measurements `) - 75 GB SSD local disk - specific ``qsub`` :ref:`options ` apply - 436 broadwell nodes - 2 Xeon E5-2680v4 CPUs\@2.4GHz, 14 cores each - 128 GB RAM (:ref:`memory bandwith and latency measurements `) - 75 GB SSD local disk - specific ``qsub`` :ref:`options ` apply - 144 broadwell nodes - 2 Xeon E5-2680v4 CPUs\@2.4GHz, 14 cores each - 256 GB RAM - 75 GB SSD local disk - specific ``qsub`` :ref:`options ` apply The nodes are connected using an Infiniband EDR network. |Breniac hardware| Breniac storage --------------- Your ``$VSC_HOME`` and ``$VSC_DATA`` directory are mounted on the Breniac login and compute nodes. See your VSC institute's information on local storage about policies and quota. Also check the :ref:`VSC storage guidelines ` for information on what to store where. .. note:: ``$VSC_HOME`` and ``$VSC_DATA`` are mounted using NFS, so they can not be used for parallel I/O. If your software benefits from using a parallel file system, please use ``$VSC_SCRATCH``. +--------------------------+--------+----------+--------+----------------+ |Variable | Type | Access |Backup | Default quota | +==========================+========+==========+========+================+ |$VSC_SCRATCH | GPFS | breniac |NO | 1 TB | |$VSC_SCRATCH_SITE | | | | | +--------------------------+--------+----------+--------+----------------+ |$VSC_SCRATCH_NODE | ext4 | breniac, |NO | 75 GB | | | | job only | | | +--------------------------+--------+----------+--------+----------------+ The path names given below should be adapted to reflect your home institution and VSC account number. +--------------------------+------------------------------+ |Variable |Name | +==========================+==============================+ |$VSC_HOME |/user/leuven/30X/vsc30XYZ | +--------------------------+------------------------------+ |$VSC_DATA |/data/leuven/30X/vsc30XYZ | +--------------------------+------------------------------+ |$VSC_SCRATCH |/scratch/leuven/30X/vsc30XYZ | |$VSC_SCRATCH_SITE | | +--------------------------+------------------------------+ |$VSC_SCRATCH_NODE |/local_scratch | +--------------------------+------------------------------+ .. |Breniac hardware| image:: breniac_hardware/breniac.png :width: 800 :alt: Breniac hardware diagram