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As Reconfigurable Computing (RC) closes its sixth decade, significant improvements have been made to make this technology a competitor for application-specific integrated circuits (ASICs). With the field programmable gate array (FPGA) computing power operating significantly lower in speed than that of a general purpose processor (GPP), the developer must exploit every avenue possible to attain a speedup...
One of the newest computational technologies is the high performance heterogeneous computer (HPHC) wherein dissimilar computational devices such as general purpose processors, graphics processors, field programmable gate arrays (FPGAs), etc., are used within a single platform to obtain a computational speedup. Jackson State University has a state-of-art HPHC cluster (an SRC-7), which contains traditional...
Codes that have large/irregular-stride (L/I) memory access patterns often perform poorly on mainstream clusters because of the general purpose processor (GPP) memory hierarchy. In the event of erratic access of data, the cache suffers misses and causes inadequate performance of the kernel. High performance heterogeneous computers (HPHCs) are parallel computing clusters that contain multiple and different...
After a general discussion on the utility of pulsed high energy neutrons in borehole applications, we summarize the operational and environmental characteristics of borehole configured neutron generators. We discuss design, operation and performance characteristics of a 1 11/16" outside diameter generator which has recently been developed for use in geologic well logging.
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