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IBM eServer p575

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The IBM System p5 575 cluster node is designed to excel at high performance computing (HPC) applications for organizations involved in engineering problem solving, drug design, oil reservoir modeling, weather forecasting, financial simulation and business intelligence (BI). Use it in clustered configurations of as few as 16 CPUs or in world class supercomputer configurations of more than 2,000 processors.

The System p5 575 features a choice of two powerful nodes. An 8-core node includes dual-core 2.2 GHz POWER5+ processors with only a single core active. Each processor core has access to 1.9MB of L2 and 36MB of L3 dedicated cache for HPC and BI applications. Also available is a 16-core node built with dual-core 1.9 GHz chips that have both cores active. In this case, two processor cores share access to the same L2 and L3 cache. Although per processor cache and memory bandwidth are less, the 16-core node achieves up to 60% more floating-point performance1 for HPC applications than the 8-core node.

The p5-575 offers ultra-dense packaging; no other IBM POWER5™ processor-based system can match the extraordinary density achieved with nearly 200 CPUs in a single footprint (12 p5-575 16-core cluster nodes packaged in a single 24-inch system frame). Compared to its POWER4™ predecessor, the System p5 575 POWER5+ cluster node delivers substantially higher packaging density; compared to its POWER5 predecessor, it delivers substantially higher sustained performance for HPC applications.

IBM p575 Specifications
Standard configuration
Processor cores   Eight 64-bit 2.2 GHz POWER5+ processors or 16 64-bit 1.9 GHz POWER5+
Level 2 (L2) cache   15.2MB
Level 3 (L3) cache   288MB
Memory   1GB of DDR2 SDRAM
Processor-to-memory bandwidth (peak)   202.7 GBps
L2 to L3 cache bandwidth (peak)   281.6 GBps
RIO-2 I/O subsystem bandwidth (peak)   46.9 GBps
Internal SCSI disk bays   Two standard (73.4/146.8/300GB 10K rpm or 36.4/73.4/146.8GB 15K rpm disks)
Standard features
I/O ports   Two Ultra3 SCSI controllers
“Compute” node configuration   Two dual 10/100/1000 Mbps Ethernet ports
Two HMC ports
Expansion features
Memory   Up to 256GB of DDR2 SDRAM
“I/O” node configuration   Two RIO-2 hub ports (for optional I/O drawer)
Four PCI-X adapter slots (64-bit/133 MHz)
I/O expansion (optional)   One optional I/O drawer (can be shared by two cluster nodes) providing 20 64-bit PCI-X slots and up to 16 disk bays (36.4/73.4/146.8GB 15K rpm disks)
Internal disk storage   2.9TB (with I/O drawer)
Virtualization Engine system technologies
POWER Hypervisor   Dynamic LPAR; Virtual LAN1
Advanced POWER Virtualization1 (optional)   Micro-Partitioning; Shared processor pool; VIOS; Partition Load Manager (AIX 5L only)
Frame features
Battery backup (optional)   Up to six—redundant or non-redundant-in system frame
High Performance Switch   Up to 128 nodes supported (higher by special order); One HMC can control 32 nodes
Operating systems   AIX 5L V5.2 or later
SUSE Linux Enterprise Server 9 for POWER (SLES 9) or later
Red Hat Enterprise Linux AS 4 for POWER (RHEL AS 4)or later
Power requirements   200v to 240v; 380v to 415v; 480v AC
System frame dimensions   79.7"H x 30.9"W x 60.2"D (202.5cm x 78.5cm x 153.0cm); weight: 3,095 lb (1,406 kg)2
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