fill_strict_tri

const kernel_cl< out_buffer, double, int, int, matrix_cl_view > stan::math::opencl_kernels::fill_strict_tri("fill_strict_tri", {indexing_helpers, view_kernel_helpers, fill_strict_tri_kernel_code})	(	"fill_strict_tri"	,
		{indexing_helpers, view_kernel_helpers, fill_strict_tri_kernel_code}
	)

See the docs for fill_strict_tri_kernel_code() .