Diferență între revizuiri ale paginii „PC Lab 1”

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-'''Session 1, x86 optimization''':
-C/C++: increase the execution speed for the code that reverses the order of the bits composing a 100 M esantioane of unsigned 32-bit (eg. 10111...11 -> 11..11101)
-Expected/Presented techniques:
-first implementation ~ 10 seconds
-compiler optimized ~ 5 seconds
-loop unrolling
-bit-tricks
-optimizing variables into registers
--entry 8-bit table of 1 KB
--bit table of 64 k entries (256 KB)
--bit table of 4 G entries (16 GB)

Versiunea curentă din 9 martie 2026 08:36