Finds the index of the element with the smallest absolute value.
event iamin(queue &exec_queue, std::int64_t n, const T *x, std::int64_t incx, T_res *result, const vector_class<event> &dependencies = {});
The USM version of iamin supports the following precisions and devices.
T | Devices Supported |
---|---|
float | Host, CPU, and GPU |
double | Host, CPU, and GPU |
std::complex<float> | Host, CPU, and GPU |
std::complex<double> | Host, CPU, and GPU |
The iamin routines return an index i such that x[i] has the minimum absolute value of all elements in vector x (real variants), or such that |Re(x[i])| + |Im(x[i])| is maximal (complex variants).
If either n or incx are not positive, the routine returns 0.
If more than one vector element is found with the same smallest absolute value, the index of the first one encountered is returned.
If the vector contains NaN values, then the routine returns the index of the first NaN.
The queue where the routine should be executed.
Number of elements in vector x.
The pointer to input vector x. The array holding input vector x must be of size at least (1 + (n - 1)*abs(incx)). See Matrix and Vector Storage for more details.
Stride of vector x.
Pointer to where the zero-based index i of the minimum element will be stored.
Output event to wait on to ensure computation is complete.