Vector Optimized Library of Kernels 3.2.0
Architecture-tuned implementations of math kernels
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volk_32f_reciprocal_32f

Overview

Computes the reciprocal of the input vector and stores the results in the output vector. For the AVX512F implementation the relative error is < 2**(-14) = 6.1e-05

Dispatcher Prototype

void volk_32f_reciprocal_32f(float* out, const float* in, unsigned int num_points)

Inputs

  • in: A pointer to the input vector of floats.
  • num_points: The number of data points.

Outputs

  • bVector: A pointer to the output vector of floats.

Example

int N = 10;
unsigned int alignment = volk_get_alignment();
float* in = (float*)volk_malloc(sizeof(float)*N, alignment);
float* out = (float*)volk_malloc(sizeof(float)*N, alignment);
for(unsigned int ii = 1; ii < N; ++ii){
in[ii] = (float)(ii*ii);
}
volk_32f_reciprocal_32f(out, in, N);
for(unsigned int ii = 0; ii < N; ++ii){
printf("out(%i) = %f\n", ii, out[ii]);
}
volk_free(out);
size_t volk_get_alignment(void)
Get the machine alignment in bytes.
Definition volk.tmpl.c:90
__VOLK_DECL_BEGIN VOLK_API void * volk_malloc(size_t size, size_t alignment)
Allocate size bytes of data aligned to alignment.
Definition volk_malloc.c:38
VOLK_API void volk_free(void *aptr)
Free's memory allocated by volk_malloc.
Definition volk_malloc.c:70