dot

Header: <pressio/ops.hpp>

API

namespace pressio { namespace ops{

template<typename T1, typename T2, typename DotResult>
void dot(const T1 & vecA, const T2 & vecB, DotResult & result);

template<typename T1, typename T2>
scalar_type dot(const T1 & vecA, const T2 & vecB);

}} // end namespace pressio::ops

Description

• Computes the dot product of two compatible vectors (vecA and vecB)

  • Stores the result in result if provided; otherwise, returns the result

• T1 and T2 must be one-dimensional containers with compatible scalar types:

  • an Eigen vector

  • a Kokkos rank-1 view

  • a Tpetra vector

  • a Tpetra block vector

  • a pressio expression, i.e. pressio::diag, pressio::span, pressio::subspan, based on Eigen or Kokkos container