Intel® oneAPI Math Kernel Library
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Element-wise vector-vector multiplication in MKL?

Customer__Intel4
Beginner
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Does MKL have any function that doeselement-wise vector-vector multiplication?
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Gennady_F_Intel
Moderator
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yes, see ?dot (...) routines which compute a vector-vector dot product
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TimP
Honored Contributor III
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It's written up in documentation/mkl mkl manual. 6 data types supported for v?Mul().
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Customer__Intel4
Beginner
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ThanksGennadyand Timp ! I mean what thev?Mul() does, not the dot product.
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Don_Ritchie
Beginner
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If you're looking for what, long ago, was called a dyad:
M(i,j)=x(i)*y(j),
this is called a "rank-1 update" in blas level 2. It's done by the ger/sger/dger routines for a general case.
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