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Why optimization flag (-O3) doesn't speed up quadruple precision calculations?

score 781 · Answer 1 · 2015-06-26 07:34:40

3

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TechQA.

List Question

Why optimization flag (-O3) doesn't speed up quadruple precision calculations?

Quadruple precision on Linux vs. Mac

Taking square root to quadruple precision

Quad-precision numbers with Intel Compiler (icc)

Double precision and quadruple precision in MATLAB

Running 128 bit Fortran calculations of a 64 bit computer

gcc13: long double has almost the same precision of libquadmath; are they both 80-bit float implementations?

Quadruple Precision in C++ (GCC)

Ignore 'long' specifier for custom type in c++

Quadruple precision float support on Intel C++ compiler 18.0 update 3 in vs 2017

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