OU Supercomputing Center for Education & Research

   

OSCER Resources

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Cluster: Dell Linux Pentium4 Xeon
topdawg.oscer.ou.edu

Cluster Hardware

Item	Description	Quantity
Performance	GFLOP/s	6,553.6 theoretical peak
Racks	Dell PowerEdge 4210 42U	29
Nodes	Compute 512 PowerEdge 1850 Head (interactive logins) 2 PowerEdge 2850 Storage 8 PowerEdge 2850 Grid 2 PowerEdge 2850 Management 2 PowerEdge 2850 ITA 1 PowerEdge 1850 Lustre Metadata Server 1 PowerEdge 1850
CPUs	Pentium4 Xeon "Irwindale" 3.2 GHz, EM64T, 2 MB L2 cache	2 per node
Motherboard/ Chipset	Dell PowerEdge/Intel E7520 Compute, spare, ITA, Lustre Metadata Server: PowerEdge 1850 Head, storage, grid, management: PowerEdge 2850	1 per node
Main Memory	DDR 400 MHz (800 MHz FSB) Compute (512) 480 x 4 GB 32 x 8 GB = 2,176 GB total Head (2) 8 GB Storage (8) 8 GB Grid (2) 8 GB Management (2) 8 GB ITA (1) 4 GB Lustre Metadata Server (1) 4 GB
Hard Disk (SCSI except as noted)	Storage Area Network Data Direct /home, /scratch: SATA; 18,626 GB (13,853 GB useable) /home NFS 4,408 GB useable /data NFS 4,408 GB useable /scratch     Lustre     5,037 GB useable EON RAID SATA; 11,175 GB (9,083 GB useable) Compute (512) OS & local scratch: 1 x 73 GB each (62 GB useable), 37,376 GB total (31,744 useable) Head (2) OS: 2 x 73 GB (RAID1) each (62 GB useable), 292 GB total (124 useable) Storage (8) OS: 2 x 73 GB (RAID1) each (62 GB useable), 1,168 GB total (496 useable) Management (2) OS: 2 x 73 GB (RAID1) each (62 GB useable), 292 GB total (124 useable) Grid (2) OS: 5 x 300 GB (RAID5) each, 3,000 GB total Note: 1 Grid node has a hot spare (906 GB useable), 1 Grid node has no hot spare (1,037 GB useable) ITA (1) OS: 2 x 73 GB (RAID1) each (62 GB useable), 292 GB total (124 useable) Lustre Metadata Server (1) OS: 2 x 73 GB (RAID1) each (62 GB useable), 292 GB total (124 useable) GRAND TOTAL (SAN, OS, local scratch) 72,513 GB (57,615 GB useable)
Interconnects	High Performance InfiniBand Topspin Communications/Cisco 120 switches and 270 switches Benchmark: bandwidth 5 Gbps, latency 3 microseconds I/O GigaBit Ethernet Force10 Networks E600/E1200 (576 ports total) Benchmark: bandwidth 976 Mbps, latency 9 microseconds Management 100 Mbps Ethernet Dell PowerConnect 3348 (768 ports total)
Programming Model	Message Passing

Cluster Software

Operating System	Red Hat Linux Enterprise 4.0 (kernel 2.6.9)
Message Passing	MPICH
Scheduler	Platform LSF HPC
Compilers	GNU: gcc, g++, g77, gfortran (Fortran 90/95) Intel: ifort (Fortran 77/90), icc (C/C++) NAG: f95 (Fortran 90/95; front end to gcc) Portland Group: pgf90, pgf77, pghpf, pgcc, pgCC
Numerical Libraries	BLAS, LAPACK, scaLAPACK
Parallel Debugger	TotalView
Code Analyzer	LintPlus for C, Fortran Lint
Other software purchases to be announced