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-rw-r--r--blas/level2_real_impl.h210
1 files changed, 185 insertions, 25 deletions
diff --git a/blas/level2_real_impl.h b/blas/level2_real_impl.h
index cd8332973..8d56eaaa1 100644
--- a/blas/level2_real_impl.h
+++ b/blas/level2_real_impl.h
@@ -12,6 +12,21 @@
// y = alpha*A*x + beta*y
int EIGEN_BLAS_FUNC(symv) (char *uplo, int *n, RealScalar *palpha, RealScalar *pa, int *lda, RealScalar *px, int *incx, RealScalar *pbeta, RealScalar *py, int *incy)
{
+ typedef void (*functype)(int, const Scalar*, int, const Scalar*, int, Scalar*, Scalar);
+ static functype func[2];
+
+ static bool init = false;
+ if(!init)
+ {
+ for(int k=0; k<2; ++k)
+ func[k] = 0;
+
+ func[UP] = (internal::selfadjoint_matrix_vector_product<Scalar,int,ColMajor,Upper,false,false>::run);
+ func[LO] = (internal::selfadjoint_matrix_vector_product<Scalar,int,ColMajor,Lower,false,false>::run);
+
+ init = true;
+ }
+
Scalar* a = reinterpret_cast<Scalar*>(pa);
Scalar* x = reinterpret_cast<Scalar*>(px);
Scalar* y = reinterpret_cast<Scalar*>(py);
@@ -40,9 +55,11 @@ int EIGEN_BLAS_FUNC(symv) (char *uplo, int *n, RealScalar *palpha, RealScalar *p
else vector(actual_y, *n) *= beta;
}
- // TODO performs a direct call to the underlying implementation function
- if(UPLO(*uplo)==UP) vector(actual_y,*n).noalias() += matrix(a,*n,*n,*lda).selfadjointView<Upper>() * (alpha * vector(actual_x,*n));
- else if(UPLO(*uplo)==LO) vector(actual_y,*n).noalias() += matrix(a,*n,*n,*lda).selfadjointView<Lower>() * (alpha * vector(actual_x,*n));
+ int code = UPLO(*uplo);
+ if(code>=2 || func[code]==0)
+ return 0;
+
+ func[code](*n, a, *lda, actual_x, 1, actual_y, alpha);
if(actual_x!=x) delete[] actual_x;
if(actual_y!=y) delete[] copy_back(actual_y,y,*n,*incy);
@@ -68,6 +85,20 @@ int EIGEN_BLAS_FUNC(syr)(char *uplo, int *n, RealScalar *palpha, RealScalar *px,
// init = true;
// }
+ typedef void (*functype)(int, Scalar*, int, const Scalar*, const Scalar*, const Scalar&);
+ static functype func[2];
+
+ static bool init = false;
+ if(!init)
+ {
+ for(int k=0; k<2; ++k)
+ func[k] = 0;
+
+ func[UP] = (selfadjoint_rank1_update<Scalar,int,ColMajor,Upper,false,Conj>::run);
+ func[LO] = (selfadjoint_rank1_update<Scalar,int,ColMajor,Lower,false,Conj>::run);
+
+ init = true;
+ }
Scalar* x = reinterpret_cast<Scalar*>(px);
Scalar* c = reinterpret_cast<Scalar*>(pc);
@@ -86,18 +117,11 @@ int EIGEN_BLAS_FUNC(syr)(char *uplo, int *n, RealScalar *palpha, RealScalar *px,
// if the increment is not 1, let's copy it to a temporary vector to enable vectorization
Scalar* x_cpy = get_compact_vector(x,*n,*incx);
- Matrix<Scalar,Dynamic,Dynamic> m2(matrix(c,*n,*n,*ldc));
-
- // TODO check why this is not accurate enough for lapack tests
-// if(UPLO(*uplo)==LO) matrix(c,*n,*n,*ldc).selfadjointView<Lower>().rankUpdate(vector(x_cpy,*n), alpha);
-// else if(UPLO(*uplo)==UP) matrix(c,*n,*n,*ldc).selfadjointView<Upper>().rankUpdate(vector(x_cpy,*n), alpha);
+ int code = UPLO(*uplo);
+ if(code>=2 || func[code]==0)
+ return 0;
- if(UPLO(*uplo)==LO)
- for(int j=0;j<*n;++j)
- matrix(c,*n,*n,*ldc).col(j).tail(*n-j) += alpha * x_cpy[j] * vector(x_cpy+j,*n-j);
- else
- for(int j=0;j<*n;++j)
- matrix(c,*n,*n,*ldc).col(j).head(j+1) += alpha * x_cpy[j] * vector(x_cpy,j+1);
+ func[code](*n, c, *ldc, x_cpy, x_cpy, alpha);
if(x_cpy!=x) delete[] x_cpy;
@@ -121,6 +145,20 @@ int EIGEN_BLAS_FUNC(syr2)(char *uplo, int *n, RealScalar *palpha, RealScalar *px
//
// init = true;
// }
+ typedef void (*functype)(int, Scalar*, int, const Scalar*, const Scalar*, Scalar);
+ static functype func[2];
+
+ static bool init = false;
+ if(!init)
+ {
+ for(int k=0; k<2; ++k)
+ func[k] = 0;
+
+ func[UP] = (internal::rank2_update_selector<Scalar,int,Upper>::run);
+ func[LO] = (internal::rank2_update_selector<Scalar,int,Lower>::run);
+
+ init = true;
+ }
Scalar* x = reinterpret_cast<Scalar*>(px);
Scalar* y = reinterpret_cast<Scalar*>(py);
@@ -141,10 +179,12 @@ int EIGEN_BLAS_FUNC(syr2)(char *uplo, int *n, RealScalar *palpha, RealScalar *px
Scalar* x_cpy = get_compact_vector(x,*n,*incx);
Scalar* y_cpy = get_compact_vector(y,*n,*incy);
+
+ int code = UPLO(*uplo);
+ if(code>=2 || func[code]==0)
+ return 0;
- // TODO perform direct calls to underlying implementation
- if(UPLO(*uplo)==LO) matrix(c,*n,*n,*ldc).selfadjointView<Lower>().rankUpdate(vector(x_cpy,*n), vector(y_cpy,*n), alpha);
- else if(UPLO(*uplo)==UP) matrix(c,*n,*n,*ldc).selfadjointView<Upper>().rankUpdate(vector(x_cpy,*n), vector(y_cpy,*n), alpha);
+ func[code](*n, c, *ldc, x_cpy, y_cpy, alpha);
if(x_cpy!=x) delete[] x_cpy;
if(y_cpy!=y) delete[] y_cpy;
@@ -191,10 +231,49 @@ int EIGEN_BLAS_FUNC(syr2)(char *uplo, int *n, RealScalar *palpha, RealScalar *px
* where alpha is a real scalar, x is an n element vector and A is an
* n by n symmetric matrix, supplied in packed form.
*/
-// int EIGEN_BLAS_FUNC(spr)(char *uplo, int *n, Scalar *alpha, Scalar *x, int *incx, Scalar *ap)
-// {
-// return 1;
-// }
+int EIGEN_BLAS_FUNC(spr)(char *uplo, int *n, Scalar *palpha, Scalar *px, int *incx, Scalar *pap)
+{
+ typedef void (*functype)(int, Scalar*, const Scalar*, Scalar);
+ static functype func[2];
+
+ static bool init = false;
+ if(!init)
+ {
+ for(int k=0; k<2; ++k)
+ func[k] = 0;
+
+ func[UP] = (internal::selfadjoint_packed_rank1_update<Scalar,int,ColMajor,Upper,false,false>::run);
+ func[LO] = (internal::selfadjoint_packed_rank1_update<Scalar,int,ColMajor,Lower,false,false>::run);
+
+ init = true;
+ }
+
+ Scalar* x = reinterpret_cast<Scalar*>(px);
+ Scalar* ap = reinterpret_cast<Scalar*>(pap);
+ Scalar alpha = *reinterpret_cast<Scalar*>(palpha);
+
+ int info = 0;
+ if(UPLO(*uplo)==INVALID) info = 1;
+ else if(*n<0) info = 2;
+ else if(*incx==0) info = 5;
+ if(info)
+ return xerbla_(SCALAR_SUFFIX_UP"SPR ",&info,6);
+
+ if(alpha==Scalar(0))
+ return 1;
+
+ Scalar* x_cpy = get_compact_vector(x, *n, *incx);
+
+ int code = UPLO(*uplo);
+ if(code>=2 || func[code]==0)
+ return 0;
+
+ func[code](*n, ap, x_cpy, alpha);
+
+ if(x_cpy!=x) delete[] x_cpy;
+
+ return 1;
+}
/** DSPR2 performs the symmetric rank 2 operation
*
@@ -203,8 +282,89 @@ int EIGEN_BLAS_FUNC(syr2)(char *uplo, int *n, RealScalar *palpha, RealScalar *px
* where alpha is a scalar, x and y are n element vectors and A is an
* n by n symmetric matrix, supplied in packed form.
*/
-// int EIGEN_BLAS_FUNC(spr2)(char *uplo, int *n, RealScalar *alpha, RealScalar *x, int *incx, RealScalar *y, int *incy, RealScalar *ap)
-// {
-// return 1;
-// }
+int EIGEN_BLAS_FUNC(spr2)(char *uplo, int *n, RealScalar *palpha, RealScalar *px, int *incx, RealScalar *py, int *incy, RealScalar *pap)
+{
+ typedef void (*functype)(int, Scalar*, const Scalar*, const Scalar*, Scalar);
+ static functype func[2];
+
+ static bool init = false;
+ if(!init)
+ {
+ for(int k=0; k<2; ++k)
+ func[k] = 0;
+
+ func[UP] = (internal::packed_rank2_update_selector<Scalar,int,Upper>::run);
+ func[LO] = (internal::packed_rank2_update_selector<Scalar,int,Lower>::run);
+
+ init = true;
+ }
+
+ Scalar* x = reinterpret_cast<Scalar*>(px);
+ Scalar* y = reinterpret_cast<Scalar*>(py);
+ Scalar* ap = reinterpret_cast<Scalar*>(pap);
+ Scalar alpha = *reinterpret_cast<Scalar*>(palpha);
+
+ int info = 0;
+ if(UPLO(*uplo)==INVALID) info = 1;
+ else if(*n<0) info = 2;
+ else if(*incx==0) info = 5;
+ else if(*incy==0) info = 7;
+ if(info)
+ return xerbla_(SCALAR_SUFFIX_UP"SPR2 ",&info,6);
+
+ if(alpha==Scalar(0))
+ return 1;
+
+ Scalar* x_cpy = get_compact_vector(x, *n, *incx);
+ Scalar* y_cpy = get_compact_vector(y, *n, *incy);
+
+ int code = UPLO(*uplo);
+ if(code>=2 || func[code]==0)
+ return 0;
+
+ func[code](*n, ap, x_cpy, y_cpy, alpha);
+
+ if(x_cpy!=x) delete[] x_cpy;
+ if(y_cpy!=y) delete[] y_cpy;
+
+ return 1;
+}
+
+/** DGER performs the rank 1 operation
+ *
+ * A := alpha*x*y' + A,
+ *
+ * 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(ger)(int *m, int *n, Scalar *palpha, Scalar *px, int *incx, Scalar *py, int *incy, Scalar *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"GER ",&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);
+
+ internal::general_rank1_update<Scalar,int,ColMajor,false,false>::run(*m, *n, a, *lda, x_cpy, y_cpy, alpha);
+
+ if(x_cpy!=x) delete[] x_cpy;
+ if(y_cpy!=y) delete[] y_cpy;
+
+ return 1;
+}
+
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