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→Hardware Configuration
== Hardware Configuration ==
== Hardware Configuration ==
A cluster of 32 computers has been assembled to facilitate parallel computation in the field of Statistics. Each computer "node", Dell PowerEdge SC1435, features:
A cluster of 32 AMD and 7 Intel computers has been assembled to facilitate parallel computation in the field of Statistics. Each computer "node", Dell PowerEdge SC1435, features:
*2 x 4-core AMD Opteron 2350 processors (2 GHz)
*2 x 4-core AMD Opteron 2350 processors (2 GHz)
*250 GB hard drive (SATA, 7.2k RPM, 3 Gbps)<br>
*250 GB hard drive (SATA, 7.2k RPM, 3 Gbps)<br>
<br>
<br>
It is best to think of every core as a separate <b><i>virtual machine</i></b> or processing <b><i>slot</i></b> capable of running one process. The cores remain isolated because the computer cannot distribute a simple, stand-alone process between its cores without special instructions for doing so within the code itself. We will therefore refer interchangeably to cores, slots or virtual machines (of which there are 8 x 31) instead of computers or processors as independent computing units, each having about 1 GB of RAM at its disposal when all cores are uniformly loaded.<br>
and each Dell PowerEdge R420 node features:
*2 x 6-core Intel Xeon E5-2430L processors (2 GHz)
*64 GB of memory (1600 MHz)
*4 TB hard drive (SATA, 7.2k RPM, 3 Gbps)<br>
<br>
It is best to think of every core as a separate <b><i>virtual machine</i></b> or processing <b><i>slot</i></b> capable of running one process. The cores remain isolated because the computer cannot distribute a simple, stand-alone process between its cores without special instructions for doing so within the code itself. We will therefore refer interchangeably to cores, slots or virtual machines (of which there are 8 x 31 + 12 x 7) instead of computers or processors as independent computing units, each having about 1 GB of RAM at its disposal when all cores are uniformly loaded.<br>
<br>
<br>
The Statistics Cluster is intergrated into existing computing infrastructure in the Nuclear Physics lab at the Physics Department. The lab provides its computing resources as well as networking, file server, security and other services. Below is a rough list of computing resources available for use (as of 2010):
The Statistics Cluster is intergrated into existing computing infrastructure in the Nuclear Physics lab at the Physics Department. The lab provides its computing resources as well as networking, file server, security and other services. Below is a rough list of computing resources available for use (as of 2010):
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| style="background: #f9f9f9; width: 200px" | Cores
| style="background: #f9f9f9; width: 200px" | Cores
| style="background: #f9f9f9; width: 200px" | 248
| style="background: #f9f9f9; width: 200px" | 248 + 84
| style="background: #f9f9f9; width: 200px" | 192/72
| style="background: #f9f9f9; width: 200px" | 192/72
| style="background: #f9f9f9; width: 200px" | 34
| style="background: #f9f9f9; width: 200px" | 34