guide:glossary
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guide:glossary [2011/02/15 16:20] swyngaard |
guide:glossary [2021/12/09 16:42] (current) |
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| =====High Performance Computing===== | =====High Performance Computing===== | ||
| * The use of parallel processing for running advanced application programs efficiently, | * The use of parallel processing for running advanced application programs efficiently, | ||
| + | |||
| =====Supercomputer===== | =====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< | * A system that performs at or near the currently highest operational rate for computers. Some supercomputers work at over half a petaflop or 10< | ||
| =====FLOPS===== | =====FLOPS===== | ||
| - | * Number of floating point operations per clock cycle | + | * Number of floating point operations per second |
| =====Peak Performance===== | =====Peak Performance===== | ||
| * Peak Flops, the theoretical measure of floating point potential | * Peak Flops, the theoretical measure of floating point potential | ||
| =====Sustained Performance===== | =====Sustained Performance===== | ||
| - | * As measured by LinPack (http:// | + | * Currently, as measured by LinPack (http:// |
| =====HPI===== | =====HPI===== | ||
| * High Performance Interconnect | * High Performance Interconnect | ||
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| * Originally born out of high performance computing | * Originally born out of high performance computing | ||
| * Enhancing the capability of the network of things rather than making applications run faster | * 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 | ||
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