[patch] SSAR optimizations for HPEC

[Jules Bergmann]

This patch includes the optimizations done for HPEC
  - use half-fast convolution
  - 128-byte alignment of data
  - place large data sets in huge page memory
  - remove fftshifts from compute sections

Ok to apply?

			-- Jules
-- 
Jules Bergmann
CodeSourcery
jules at codesourcery.com
(650) 331-3385 x705
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