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guide:glossary [2011/02/15 15:58]
swyngaard
guide:glossary [2021/12/09 16:42] (current)
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-====Glossary==== +======Glossary====== 
- High Performance Computing+=====High Performance Computing=====
   * The use of parallel processing for running advanced application programs efficiently, reliably and quickly.   * The use of parallel processing for running advanced application programs efficiently, reliably and quickly.
 +
 +=====Supercomputer=====
 +  * A system that performs at or near the currently highest operational rate for computers. Some supercomputers work at over half a petaflop or 10<sup>15</sup> floating-point operations per second.
 +=====FLOPS=====
 +  * Number of floating point operations per second
 +=====Peak Performance=====
 +  * Peak Flops, the theoretical measure of floating point potential
 +=====Sustained Performance=====
 +  * Currently, as measured by LinPack (http://www.top500.org)
 +=====HPI=====
 +  * High Performance Interconnect
 +  * This usually means Infiniband
 +=====Grid=====
 +  * Originally born out of high performance computing
 +  * Enhancing the capability of the network of things rather than making applications run faster
 +=====Cluster=====
 +  * Group of tightly coupled (usually with a high performance interconnect) computers that work together
 +=====Beowulf Cluster=====
 +  * Commodity based cluster COTS (commodity-off-the-shelf) components
 +  * Linux, Intel/AMD
 +=====Compute Farm=====
 +  * Loosely coupled cluster (no high performance interconnect)
 +=====Single Precision=====
 +  * 32 bits
 +  * Significand of 24 bits
 +  * Exponent of 7 bits
 +  * 1 sign bit
 +=====Double Precision=====
 +  * 64 bits
 +  * Significand of 52 bits
 +  * Exponent of 11 bits
 +  * 1 sign bit
/app/dokuwiki/data/attic/guide/glossary.1297778300.txt.gz · Last modified: 2021/12/09 16:42 (external edit)