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Levich Institute Cluster Computers:

Cluster Crebeo Benny Sun
Full hostname crebeo.engr.ccny.cuny.edu benny.engr.ccny.cuny.edu lis1s0.engr.ccny.cuny.edu
Hardware summary
  • 32-bit compute nodes:
    2.0 GHz AMD Athlon dual processor;
    2.0 GB RAM;
    Functional virtual machines:56
  • File server:
    300GB shared file system;
    7-day automated backup
  • Functional nodes virtual machines: 56
  • 64-bit master node:
    1.8 GHz AMD Opteron dual core dual processor.
    4 GB RAM;
  • 64-bit computing nodes:
    1.8 GHz AMD Opteron dual core dual processor.
    4 GB RAM;
  • Functional nodes virtual machines: 164
  • Compute node:
    750 MHz Sparcv9 dual processor;
    Functional nodes: 24
Software
  • Mathematica on master
  • Evolver on master
  • Matlab on master
  • NCARG (documentation) on master1 and node41
  • Fluent, Gambit, Fidap
  • NCARG
  • tecplot
  • Matlab
  • pgplot
  • Xmgrace
  • Fluent
Compiler and Libaries
  • gcc/cc: GNU C and C++ compiler
  • g77/f77: GNU Fortran 77 compiler
  • g95: GNU Fortran 90 and 95 compiler
  • ifc: Intel Fortran 90 and 95 compiler
  • gcc/cc: GNU C and C++ compiler
  •  g77/f77: GNU Fortran 77 compiler
  • PGI compilers: mpicc, mpicxx,
    mpi
  • MPI library: Support of parallel computing
  • ifc/MKL
  • gcc/cc: GNU C and C++ compiler
  • g77: GNU Fortran 77 compiler
  • f77: Sun WorkShop Fortran 77 compiler
  • f95/f90: Sun WorkShop Fortran 95 compiler
  • MPI library: Sample MPI compile command line: f95 -fast -O3 -L/opt/scali/lib -I/opt/scali/include -xtarget=ultra3 -xarch=v9b -xtypemap=real:64 -stackvar -lfmpi -lmpi sample.f -o sample
Debugger and Optimizer
  • gdb: command line mode debugger
  • kdbg: a graphic graphic debugger
  • ddd: X window front-end of gdb
  • memprof
  • gdb: command line mode debugger
  • kdbg: a graphic graphic debugger
  • ddd: X window front-end of gdb
  • memprof
N/A
Automated Backup
  • User accounts backup is performed everyday and kept for 7 days;
  • Monthly full backup at the first day of the month, kept for 12 months.
  • User accounts backup is performed everyday and kept for 7 days;
  • Monthly full backup at the first day of each month, kept for 12 months.
N/A
Disk Quota
  • Student 5GB soft limit and 7.5GB hard limit
  • Faculty 10GB soft limit and 15GB hard limit
  • Quota increase is possible upon request
  • Student 10GB soft limit and 15GB hard limit
  • Faculty 15GB soft limit and 20GB hard limit
  • Quota increase is possible upon request
  • Student 1GB
  • Falculty 5GB
Summary of User Policy
  • All computation intensive jobs are required to be submitted through job scheduler from master node. A tutorial of Condor job scheduler is available at here.
  • Master node is ready to accespt test runs of MPI jobs through mpirun.
  • Node 41 is a secondary developing node for compiling and debuging programs.
  • Slave nodes except node 41 are not directly accessible.
Direct submission with miprun script.
Access Restriction
  • Connection is open only to SSH
  • Access is generally restricted to registered in-campus computers only
  • www-levich.engr.ccny.cuny.edu is availble to those who need off-campus access to crebeo.
  • Connection is open only to SSH
  • Access is generally restricted to registered in-campus computers only
  • www-levich.engr.ccny.cuny.edu is availble to those who need off-campus access to crebeo.
  • Connection is open only to SSH
  • Access is generally restricted to registered in-campus computers only