Title :
SAR image synthesis algorithm improvement on multi-processor/multi-core computers: Vectoring on massively parallel processors.
Author :
Nahum, Carole E. ; Cantalloube, Hubert M J
Author_Institution :
Direction Gen. de l´´Armement, Bagneux, France
Abstract :
SAR image synthesis, though highly systematic hence clearly highly parallelisable, requires local variations in the processing in case of airborne acquisitions to compensate for effective trajectory fluctuations around the planned fight path. Here are presented an alternative to paralleling of concurrent independent threads described earlier: the vectorisation on massively parallel processors. The changes in data organisation and computation division imposed by the hardware specificities are described, and performance comparison with multi-threading on multi-CPU is assessed.
Keywords :
airborne radar; multiprocessing systems; radar imaging; synthetic aperture radar; SAR image synthesis algorithm; airborne acquisition; computation division; data organisation; massively parallel processors; multiCPU; multicore computers; multiprocessor; multithreading; planned flight path; trajectory fluctuation; Central Processing Unit; Computers; Graphics processing unit; Instruction sets; Kernel; Servers;
Conference_Titel :
Radar Symposium (IRS), 2011 Proceedings International
Conference_Location :
Leipzig
Print_ISBN :
978-1-4577-0138-2
