Intel® oneAPI Math Kernel Library Developer Reference - Fortran
Conjugates a complex vector.
call pclacgv(n, x, ix, jx, descx, incx)
call pzlacgv(n, x, ix, jx, descx, incx)
The p?lacgvroutine conjugates a complex vector sub(X) of length n, where sub(X) denotes X(ix, jx:jx+n-1) if incx = m_x, and X(ix:ix+n-1, jx) if incx = 1.
(global) INTEGER. The length of the distributed vector sub(X).
(local).
COMPLEX for pclacgv
COMPLEX*16 for pzlacgv.
Pointer into the local memory to an array of size (lld_x,*). On entry the vector to be conjugated x(i) = X(ix+(jx-1)*m_x+(i-1)*incx), 1 ≤ i ≤ n.
(global) INTEGER. The row index in the global matrix X indicating the first row of sub(X).
(global) INTEGER. The column index in the global matrix X indicating the first column of sub(X).
(global and local) INTEGER. Array of size dlen_=9. The array descriptor for the distributed matrix X.
(global) INTEGER. The global increment for the elements of X. Only two values of incx are supported in this version, namely 1 and m_x. incx must not be zero.
(local).
On exit, the local pieces of conjugated distributed vector sub(X).