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Stan Math Library
5.1.0
Automatic Differentiation
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| __kernel void stan::math::opencl_kernels::gp_exp_quad_cov_cross | ( | const __global double * | x1, |
| const __global double * | x2, | ||
| __global double * | res, | ||
| const double | sigma_sq, | ||
| const double | neg_half_inv_l_sq, | ||
| const int | size1, | ||
| const int | size2, | ||
| const int | element_size | ||
| ) |
GPU part of calculation of squared exponential kernel.
This function is for the cross covariance matrix needed to compute the posterior predictive density.
| [in] | x1 | first input vector or matrix |
| [in] | x2 | second input vector or matrix |
| [out] | res | squared distances between elements of x |
| sigma_sq | squared standard deviation | |
| neg_half_inv_l_sq | -0.5 / square(length scale) | |
| size1 | number of elements in x1 | |
| size2 | number of elements in x2 | |
| element_size | the number of doubles that make one element of x and y |
Definition at line 72 of file gp_exp_quad_cov.hpp.