Highlights of nyx
- Processors :
- Our Opteron cluster is composed nodes containing:
- Login node :
- nyx-login.engin.umich.edu
- System memory:
- Memory per node ranges from 2G to 32G with one node that has 64G.
- Networking:
- All of the nyx nodes have a non-blocking gigabit network connection. Some of the nyx nodes have Infiniband connections.
- Temporary Storage:
-
The directory /home is a NFS filesystem that is shared by each node
within each cluster, but not across the clusters. This is a 6 TB
partition on nyx and every user has an 40GB quota. Be sure to copy
important files to AFS or private storage as soon as possible from the home directory space to prevent it from filling and negatively impacting other jobs on the system.
-
The directory /tmp is local to each machine. They are cleaned out daily
and are not backed up, however they do provide local data repositories
that are faster than using your home directory.
- High Performance Storage:
- The directory /nobackup
is a parallel cluster filesystem. It is shared on all nodes and should
be used for checkpoint files, staging large data sets that need to be
read or written at high speed. Performance on /nobackup should be
greater than /home but has is subject to limitations.
- GPGPU's:
- Nyx supports a collection of GPU's supporting the NVIDIA Cuda programming environment. Please see: Cuda GPGPUs
- Software/System Updates
- Please see the New & Noteworthy section of the Getting Started page for a list of the changes and improvements to the nyx cluster.
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