global c: /global/c available again but may be unstable
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Cluster brown.sharcnet.ca

Links System documentation in the SHARCNET Help Wiki

Manufacturer IBM
Operating System CentOS 6
Interconnect Gigabit Ethernet
Total processors/cores 976
Nodes
brown: 1‑80
8 cores
2 sockets x 4 cores per socket
Intel Xeon @ 2.83 GHz
Type: Compute
Memory: 16.0 GB
Local storage: 124 GB
brown: 81‑94
8 cores
2 sockets x 4 cores per socket
Intel Xeon @ 2.93 GHz
Type: Compute
Memory: 12.0 GB
Local storage: 124 GB
brown: 95‑114
8 cores
2 sockets x 4 cores per socket
Intel Xeon @ 2.93 GHz
Type: Compute
Memory: 48.0 GB
Local storage: 124 GB
brown: 115‑116
24 cores
2 sockets x 12 cores per socket
AMD Opteron @ 2.2 GHz
Type: Compute
Memory: 24.0 GB
Local storage: 160 GB
brown: 119
8 cores
2 sockets x 4 cores per socket
Intel Xeon @ 2.67 GHz
Type: Login
Memory: 12.0 GB
Local storage: None
brown: 120
8 cores
2 sockets x 4 cores per socket
Intel Xeon @ 2.83 GHz
Type: Admin
Memory: 16.0 GB
Local storage: None
Total attached storage 9.77 TB
Suitable use

Threaded and serial applications with low IO requirements for shared storage.
Note: This system is contributed by a research group. Jobs submitted by contributing groups have a higher priority than others. For the policies on the contribution of systems, please refer to Contribution of Computational Assets to SHARCNET.

Software available

GAUSSIAN, COREUTILS, NWCHEM, ADF/BAND, GIT, PETSC_SLEPC, VIM, UTIL, SIESTA, CMAKE, LAMMPS, GCC, BLAST, NCL, OPENMPI, NETCDF, R, MPIBLAST, PARI/GP, OCTAVE, ORCA, PYTHON, CPMD, SAMTOOLS, MERCURIAL, MKL, DAR, CDF, BIOSAMTOOLS, PERL, GMP, INTEL, BOOST, HDF, FFTW, PGI, TEXLIVE, TINKER, OPENJDK, GNU , ACML, QD, MrBAYES, GEANT4, OPEN64, EMACS, MPFUN90, BINUTILS, SUBVERSION, DLPOLY, GROMACS, MATLAB, LDWRAPPER, SPRNG, BIOPERL, MPFR, VALGRIND, RLWRAP, MPFUN2015, YT, MPC, CHARM++, NAMD, PNETCDF, SUPERLU, SQ, IPM, GNUPLOT, GSL, BIOPERLRUN, ILOGCPLEX, CPAN, OPENCV, ARPACK-NG, RUBY, NIX, PROOT, GHC, VMD, ESPRESSO, AUTODOCKVINA, NCBIC++TOOLKIT

Current system state details Graphs

Recent System Notices

Status Status Notes
Jun 17 2017, 07:32PM
(2 months ago)

The Brown cluster has now been decomissioned.

May 24 2017, 12:32PM
(3 months ago)

The Brown cluster is back online after the power outage at Waterloo. Any jobs running at the time of the outage have been killed, and will need to be restarted.

Due to age, and cumulative hardware failures, the Brown cluster has been scheduled for decomissioning as of Friday, June 16 2017 at 4pm.

The Brown cluster has been in service for 8 years, since 2009.

May 23 2017, 01:34PM
(3 months ago)

There was a power failure at UWaterloo this morning. All running jobs were killed. We are currently working on bringing the systems back up.

Aug 24 2016, 02:49PM
(12 months ago)

The scratch filesystem on the Brown cluster has developed unrecoverable errors which have resulted in it becoming read-only.

As this hardware is very old, and well past warranty, replacement parts are not available, and the array will be shut down and retired.

The directory itself will still be accessible as /oldscratch/$USER on brown’s login node for the next week, and will be fully disconnected on September 1st.

If you have any data on brown’s scratch, you will have until then to retrieve it from /oldscratch/$USER (where $USER is your userid) on brown’s login node, after which it will be unavailable.

Any jobs on the Brown cluster will need to be re-written to use your global work, or /tmp for temporary file access. Remember that global work files do not expire, so you will need to remember to erase temporary files yourself if you are using that location.

Any further problems should be reported to help@sharcnet.ca

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