diff options
| author |  Gael Guennebaud <g.gael@free.fr> | 2010-11-19 17:05:24 +0100 |
|---|---|---|
| committer | Gael Guennebaud <g.gael@free.fr> | 2010-11-19 17:05:24 +0100 |
| commit | ed1ecb24d2c056f8e8934abf6ddb35bf75985ee0 (patch) | |
| tree | d345ed3e199b099570d7d343c474b2c962b4ea39 /blas | |
| parent | 458637f097b646ff2e05e5802deaea23abc9a2f6 (diff) | |
implement GERC and GERU blas routines
Diffstat (limited to 'blas')
| -rw-r--r-- | blas/level2_impl.h | 56 |
1 files changed, 54 insertions, 2 deletions
diff --git a/blas/level2_impl.h b/blas/level2_impl.h index ad0216b1f..16ee11193 100644 --- a/blas/level2_impl.h +++ b/blas/level2_impl.h @@ -606,8 +606,34 @@ int EIGEN_BLAS_FUNC(her2)(char *uplo, int *n, RealScalar *palpha, RealScalar *px * where alpha is a scalar, x is an m element vector, y is an n element * vector and A is an m by n matrix. */ -int EIGEN_BLAS_FUNC(geru)(int *m, int *n, RealScalar *alpha, RealScalar *x, int *incx, RealScalar *y, int *incy, RealScalar *a, int *lda) +int EIGEN_BLAS_FUNC(geru)(int *m, int *n, RealScalar *palpha, RealScalar *px, int *incx, RealScalar *py, int *incy, RealScalar *pa, int *lda) { + Scalar* x = reinterpret_cast<Scalar*>(px); + Scalar* y = reinterpret_cast<Scalar*>(py); + Scalar* a = reinterpret_cast<Scalar*>(pa); + Scalar alpha = *reinterpret_cast<Scalar*>(palpha); + + int info = 0; + if(*m<0) info = 1; + else if(*n<0) info = 2; + else if(*incx==0) info = 5; + else if(*incy==0) info = 7; + else if(*lda<std::max(1,*m)) info = 9; + if(info) + return xerbla_(SCALAR_SUFFIX_UP"GERU ",&info,6); + + if(alpha==Scalar(0)) + return 1; + + Scalar* x_cpy = get_compact_vector(x,*m,*incx); + Scalar* y_cpy = get_compact_vector(y,*n,*incy); + + // TODO perform direct calls to underlying implementation + matrix(a,*m,*n,*lda) += alpha * vector(x_cpy,*m) * vector(y_cpy,*n).transpose(); + + if(x_cpy!=x) delete[] x_cpy; + if(y_cpy!=y) delete[] y_cpy; + return 1; } @@ -618,8 +644,34 @@ int EIGEN_BLAS_FUNC(geru)(int *m, int *n, RealScalar *alpha, RealScalar *x, int * where alpha is a scalar, x is an m element vector, y is an n element * vector and A is an m by n matrix. */ -int EIGEN_BLAS_FUNC(gerc)(int *m, int *n, RealScalar *alpha, RealScalar *x, int *incx, RealScalar *y, int *incy, RealScalar *a, int *lda) +int EIGEN_BLAS_FUNC(gerc)(int *m, int *n, RealScalar *palpha, RealScalar *px, int *incx, RealScalar *py, int *incy, RealScalar *pa, int *lda) { + Scalar* x = reinterpret_cast<Scalar*>(px); + Scalar* y = reinterpret_cast<Scalar*>(py); + Scalar* a = reinterpret_cast<Scalar*>(pa); + Scalar alpha = *reinterpret_cast<Scalar*>(palpha); + + int info = 0; + if(*m<0) info = 1; + else if(*n<0) info = 2; + else if(*incx==0) info = 5; + else if(*incy==0) info = 7; + else if(*lda<std::max(1,*m)) info = 9; + if(info) + return xerbla_(SCALAR_SUFFIX_UP"GERC ",&info,6); + + if(alpha==Scalar(0)) + return 1; + + Scalar* x_cpy = get_compact_vector(x,*m,*incx); + Scalar* y_cpy = get_compact_vector(y,*n,*incy); + + // TODO perform direct calls to underlying implementation + matrix(a,*m,*n,*lda) += alpha * vector(x_cpy,*m) * vector(y_cpy,*n).adjoint(); + + if(x_cpy!=x) delete[] x_cpy; + if(y_cpy!=y) delete[] y_cpy; + return 1; } #endif // ISCOMPLEX |