tesseract 4.1.1
Loading...
Searching...
No Matches
dotproduct.h
Go to the documentation of this file.
1
2// File: dotproduct.h
3// Description: Native dot product function.
4//
5// (C) Copyright 2018, Google Inc.
6// Licensed under the Apache License, Version 2.0 (the "License");
7// you may not use this file except in compliance with the License.
8// You may obtain a copy of the License at
9// http://www.apache.org/licenses/LICENSE-2.0
10// Unless required by applicable law or agreed to in writing, software
11// distributed under the License is distributed on an "AS IS" BASIS,
12// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13// See the License for the specific language governing permissions and
14// limitations under the License.
16
17#ifndef TESSERACT_ARCH_DOTPRODUCT_H_
18#define TESSERACT_ARCH_DOTPRODUCT_H_
19
20namespace tesseract {
21
22// Computes and returns the dot product of the n-vectors u and v.
23double DotProductNative(const double* u, const double* v, int n);
24
25// Uses Intel AVX intrinsics to access the SIMD instruction set.
26double DotProductAVX(const double* u, const double* v, int n);
27
28// Use Intel FMA.
29double DotProductFMA(const double* u, const double* v, int n);
30
31// Uses Intel SSE intrinsics to access the SIMD instruction set.
32double DotProductSSE(const double* u, const double* v, int n);
33
34} // namespace tesseract.
35
36#endif // TESSERACT_ARCH_DOTPRODUCT_H_
double DotProductAVX(const double *u, const double *v, int n)
double DotProductNative(const double *u, const double *v, int n)
Definition: dotproduct.cpp:22
double DotProductFMA(const double *u, const double *v, int n)
double DotProductSSE(const double *u, const double *v, int n)