Green Grid Architecture
The Green Grid is a distributed computing environment designed to bootstap
the creation of a campus-wide heterogenous grid. The Grid Grid consists
of 64 IBM eServer 325 systems. Each eServer 325 is has dual AMD Opteron
processors and 2GByte of memory. An initial 10 sites were selected to host
the systems for the Green Grid.
 |
| Sample Site Configuration |
|---|
Phase I of the Green Grid Project will be a bootstrapped architecture
based on a Linux kernel running on the AMD64 Opteron processor. The
systems will be managed by the Green Grid project team. A software
stack based on open-source and standards based technology will be
loaded and configured on each node of the Grid.
| Green Grid Software Stack |
|---|
| CondorG |
| Globus Toolkit (Pre-WS) |
| GridEngine 5.3 |
| AFS File System |
Network Requirements
Each site participating in the Green Grid project will need to provide
12 10/100 Fast Ethernet ports. The eServer 325 has two 10/100/1000
ports for network communications. We will only be using a single port
from each server for general communications. If Gigabit Ethernet is
available this would be preferred but it should not be regarded as a
requirement. The IPMI coprocessor interface will also have an IP
addressed assigned. The grid.dartmouth.edu sub-domain has been
created for the Green Grid project and will be used for each of the
cluster nodes.
The Green Grid nodes will need to be on the Dartmouth public
(129.170.0.0/255.255.0.0) network with unfiltered network access.
Power Requirements
Each compute node has a single 411 watt (115-230V) power supply with a
single power cord. A UPS is not required, but might be a good idea.
- Input kilovolt-amperes: Minimum: 0.120 kVA, Maximum: 0.400 kVA
- Input voltage: Minimum: 100 V ac, Maximum: 127 V ac
Environmental Information
The Green Grid nodes do not require an air-conditioned data center ,
however , the following environmental information should be considered
when determining a location for install.
- The IBM eServer 325 nodes will generate 1,366 BTU/hr (400 watts)
- Minimum temperature: 50 Maximum temperature: 89.6F
Site Configuration
Each site will have 6 dual processor Opteron systems. One of the nodes is
a Globus server. The nodes each have dual 10/100/1000 baseT interfaces.
A single network interface connects the systems to the Dartmouth network.
| globus server |
| compute node |
| compute node |
| compute node |
| compute node |
| Rack Configuration |
| 