20.cuBLAS开发指南中文版--cuBLAS中的Level-2函数ger()

2.6.3. cublas<t>ger()

cublasStatus_t  cublasSger(cublasHandle_t handle, int m, int n,
                           const float           *alpha,
                           const float           *x, int incx,
                           const float           *y, int incy,
                           float           *A, int lda)
cublasStatus_t  cublasDger(cublasHandle_t handle, int m, int n,
                           const double          *alpha,
                           const double          *x, int incx,
                           const double          *y, int incy,
                           double          *A, int lda)
cublasStatus_t cublasCgeru(cublasHandle_t handle, int m, int n,
                           const cuComplex       *alpha,
                           const cuComplex       *x, int incx,
                           const cuComplex       *y, int incy,
                           cuComplex       *A, int lda)
cublasStatus_t cublasCgerc(cublasHandle_t handle, int m, int n,
                           const cuComplex       *alpha,
                           const cuComplex       *x, int incx,
                           const cuComplex       *y, int incy,
                           cuComplex       *A, int lda)
cublasStatus_t cublasZgeru(cublasHandle_t handle, int m, int n,
                           const cuDoubleComplex *alpha,
                           const cuDoubleComplex *x, int incx,
                           const cuDoubleComplex *y, int incy,
                           cuDoubleComplex *A, int lda)
cublasStatus_t cublasZgerc(cublasHandle_t handle, int m, int n,
                           const cuDoubleComplex *alpha,
                           const cuDoubleComplex *x, int incx,
                           const cuDoubleComplex *y, int incy,
                           cuDoubleComplex *A, int lda)

此函数执行 rank-1 更新

$y=\alpha op(A)x+\beta y$

$$A=\{\begin{array}{l}\alpha x{y}^T+A如果ger(),geru()被调用\\ \alpha x{y}^H+A如果gerc()被调用\end{array}$$

其中 A 是以列优先格式存储的 m*n 矩阵，x 和 y 是向量，$\alpha$是标量。

该函数可能返回的错误值及其含义如下所列。

请参考:
sger, dger, cgeru, cgerc, zgeru, zgerc