avx registers for 64 bits numbers

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avx registers for 64 bits numbers

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Hi to everyone!

I am trying to compute a long array with double-precision floats (64 bits) in Fortran. I know there are 16 avx registers of 256bits. If I use those registers for my computations, I will have unused space. Is there an option to optimize that space? An option is to mask four floating numbers to use a single register, but it's a little bit...tricky.

Thanks!

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