caffe中openblas函数

最新推荐文章于 2025-06-06 09:06:39 发布

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最新推荐文章于 2025-06-06 09:06:39 发布

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分类专栏： caffe与人工智障

本文链接：https://blog.youkuaiyun.com/weixin_37608001/article/details/79028476

本文汇总了 Caffe 中使用 OpenBLAS 的关键函数，包括 cblas_?axpby、cblas_?gemv、cblas_?scal 和 cblas_?gemm，详细解释了它们的功能、参数及用途。

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caffe中openblas函数说明汇总

为了方便查阅将官网中的说明直接拷贝过来

cblas_?axpby

Scales two vectors, adds them to one another and stores result in the vector.
Syntax

void cblas_saxpby (const MKL_INT n, const float a, const float *x, const MKL_INT incx, const float b, float *y, const MKL_INT incy);

void cblas_daxpby (const MKL_INT n, const double a, const double *x, const MKL_INT incx, const double b, double *y, const MKL_INT incy);

void cblas_caxpby (const MKL_INT n, const void *a, const void *x, const MKL_INT incx, const void *b, void *y, const MKL_INT incy);

void cblas_zaxpby (const MKL_INT n, const void *a, const void *x, const MKL_INT incx, const void *b, void *y, const MKL_INT incy);

Include Files

mkl.h

Description

The ?axpby routines perform a vector-vector operation defined as

y := a*x + b*y

where:

a and b are scalars

x and y are vectors each with n elements.
Input Parameters

Specifies the number of elements in vectors x and y.

Specifies the scalar a.

Array, size at least (1 + (n-1)*abs(incx)).

incx

Specifies the increment for the elements of x.

Specifies the scalar b.

Array, size at least (1 + (n-1)*abs(incy)).

incy

Specifies the increment for the elements of y.

Output Parameters

Contains the updated vector y.

cblas_?gemv

Computes a matrix-vector product using a general matrix
Syntax

void cblas_sgemv (const CBLAS_LAYOUT Layout, const CBLAS_TRANSPOSE trans, const MKL_INT m, const MKL_INT n, const float alpha, const float *a, const MKL_INT lda, const float *x, const MKL_INT incx, const float beta, float *y, const MKL_INT incy);

void cblas_dgemv (const CBLAS_LAYOUT Layout, const CBLAS_TRANSPOSE trans, const MKL_INT m, const MKL_INT n, const double alpha, const double *a, const MKL_INT lda, const double *x, const MKL_INT incx, const double beta, double *y, cons