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Teoretically direct mode is faster then FFT mode for kernels less then 7*7but actuallycut-off pointdepends to performance of FFT mode and direct mode which depend to MKL version andhardaware.
Victor
Teoretically direct mode is faster then FFT mode for kernels less then 7*7but actuallycut-off pointdepends to performance of FFT mode and direct mode which depend to MKL version andhardaware.
Victor
For more complete information about compiler optimizations, see our Optimization Notice.