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vectorizationsimdavxexponentialavx2
Baptiste Wicht
Baptiste Wicht

Reputation: 7663

Where can I find an AVX exponential double-precision function?

I was recently researching implementations of vectorized exponential functions. It's actually very simple to find code for single-precision, but very hard to find code for double-precision. I haven't been able to find any implementation of double-precision AVX exponentiation. The code from SSE can almost be adapted but the trick that is generally used to multiply by 2^n does not seem to be adaptable to AVX.

Does anyone know of such an implementation ?

Upvotes: 1

Views: 1327

Answers (1)

Paul R
Paul R

Reputation: 212929

If you are using Intel's ICC compiler then there is _mm256_exp_pd in the SVML library.

Alternatively Agner Fog's vector class library supports exp for double precision vectors.

Upvotes: 4

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