Returns the element with the larger magnitude between each pair of elements of the two vector arguments.
Buffer API:
void maxmag(queue& exec_queue, int64_t n, buffer<T,1>& a, buffer<T,1>& b, buffer<T,1>& y, uint64_t mode = mode::not_defined );
USM API:
event maxmag(queue& exec_queue, int64_t n, T* a, T* b, T* y, vector_class<event>* depends, uint64_t mode = mode::not_defined );
maxmag supports the following precisions and devices:
T | Devices supported |
---|---|
float | Host, CPU, and GPU |
double | Host, CPU, and GPU |
The maxmag(a,b) function returns a vector with element values equal to the element with the larger magnitude from each pair of corresponding elements of the two vectors a and b:
If |a| > |b| maxmag(a,b) returns a, otherwise maxmag(a,b) returns b.
If |b| > |a| maxmag(a,b) returns b, otherwise maxmag(a,b) returns a.
Otherwise maxmag(a,b) behaves like fmax.
Argument 1 | Argument 2 | Result | Error Code |
---|---|---|---|
a not NAN | NAN | a | |
NAN | b not NAN | b | |
NAN | NAN | NAN |
The maxmag(a,b) function does not generate any errors.
Buffer API:
The queue where the routine should be executed.
Specifies the number of elements to be calculated.
The buffer a containing 1st input vector of size n.
The buffer b containing 2nd input vector of size n.
Overrides the global VM mode setting for this function call. See set_mode function for possible values and their description. This is an optional parameter. The default value is mode::not_defined.
USM API:
The queue where the routine should be executed.
Specifies the number of elements to be calculated.
Pointer a to the 1st input vector of size n.
Pointer b to the 2nd input vector of size n.
Vector of dependent events (to wait for input data to be ready).
Overrides the global VM mode setting for this function call. See the set_mode function for possible values and their description. This is an optional parameter. The default value is mode::not_defined.
Buffer API:
The buffer y containing the output vector of size n.
USM API:
Pointer y to the output vector of size n.
Function end event.
An example of how to use maxmagcan be found in the Intel® oneMKL installation directory, under:
examples/sycl/vml/vmaxmag.cpp