Import GotoBLAS2 1.13 BSD version codes.

1 files changed, 207 insertions, 0 deletions

diff --git a/interface/spmv.c b/interface/spmv.c
new file mode 100644
index 000000000..8d8902763
--- /dev/null
+++ b/interface/spmv.c
@@ -0,0 +1,207 @@
+/*********************************************************************/
+/* Copyright 2009, 2010 The University of Texas at Austin.           */
+/* All rights reserved.                                              */
+/*                                                                   */
+/* Redistribution and use in source and binary forms, with or        */
+/* without modification, are permitted provided that the following   */
+/* conditions are met:                                               */
+/*                                                                   */
+/*   1. Redistributions of source code must retain the above         */
+/*      copyright notice, this list of conditions and the following  */
+/*      disclaimer.                                                  */
+/*                                                                   */
+/*   2. Redistributions in binary form must reproduce the above      */
+/*      copyright notice, this list of conditions and the following  */
+/*      disclaimer in the documentation and/or other materials       */
+/*      provided with the distribution.                              */
+/*                                                                   */
+/*    THIS  SOFTWARE IS PROVIDED  BY THE  UNIVERSITY OF  TEXAS AT    */
+/*    AUSTIN  ``AS IS''  AND ANY  EXPRESS OR  IMPLIED WARRANTIES,    */
+/*    INCLUDING, BUT  NOT LIMITED  TO, THE IMPLIED  WARRANTIES OF    */
+/*    MERCHANTABILITY  AND FITNESS FOR  A PARTICULAR  PURPOSE ARE    */
+/*    DISCLAIMED.  IN  NO EVENT SHALL THE UNIVERSITY  OF TEXAS AT    */
+/*    AUSTIN OR CONTRIBUTORS BE  LIABLE FOR ANY DIRECT, INDIRECT,    */
+/*    INCIDENTAL,  SPECIAL, EXEMPLARY,  OR  CONSEQUENTIAL DAMAGES    */
+/*    (INCLUDING, BUT  NOT LIMITED TO,  PROCUREMENT OF SUBSTITUTE    */
+/*    GOODS  OR  SERVICES; LOSS  OF  USE,  DATA,  OR PROFITS;  OR    */
+/*    BUSINESS INTERRUPTION) HOWEVER CAUSED  AND ON ANY THEORY OF    */
+/*    LIABILITY, WHETHER  IN CONTRACT, STRICT  LIABILITY, OR TORT    */
+/*    (INCLUDING NEGLIGENCE OR OTHERWISE)  ARISING IN ANY WAY OUT    */
+/*    OF  THE  USE OF  THIS  SOFTWARE,  EVEN  IF ADVISED  OF  THE    */
+/*    POSSIBILITY OF SUCH DAMAGE.                                    */
+/*                                                                   */
+/* The views and conclusions contained in the software and           */
+/* documentation are those of the authors and should not be          */
+/* interpreted as representing official policies, either expressed   */
+/* or implied, of The University of Texas at Austin.                 */
+/*********************************************************************/
+
+#include <stdio.h>
+#include <ctype.h>
+#include "common.h"
+#ifdef FUNCTION_PROFILE
+#include "functable.h"
+#endif
+
+#ifdef XDOUBLE
+#define ERROR_NAME "QSPMV "
+#elif defined(DOUBLE)
+#define ERROR_NAME "DSPMV "
+#else
+#define ERROR_NAME "SSPMV "
+#endif
+
+static  int (*spmv[])(BLASLONG, FLOAT, FLOAT *, FLOAT *, BLASLONG, FLOAT *, BLASLONG, void *) = {
+#ifdef XDOUBLE
+  qspmv_U, qspmv_L,
+#elif defined(DOUBLE)
+  dspmv_U, dspmv_L,
+#else
+  sspmv_U, sspmv_L,
+#endif
+};
+
+#ifdef SMP
+static  int (*spmv_thread[])(BLASLONG, FLOAT, FLOAT *, FLOAT *, BLASLONG, FLOAT *, BLASLONG, FLOAT *, int) = {
+#ifdef XDOUBLE
+  qspmv_thread_U, qspmv_thread_L,
+#elif defined(DOUBLE)
+  dspmv_thread_U, dspmv_thread_L,
+#else
+  sspmv_thread_U, sspmv_thread_L,
+#endif
+};
+#endif
+
+#ifndef CBLAS
+
+void NAME(char *UPLO, blasint *N, FLOAT  *ALPHA, FLOAT *a,
+            FLOAT  *x, blasint *INCX, FLOAT *BETA, FLOAT *y, blasint *INCY){
+
+  char uplo_arg = *UPLO;
+  blasint n		= *N;
+  FLOAT alpha	= *ALPHA;
+  blasint incx	= *INCX;
+  FLOAT beta	= *BETA;
+  blasint incy	= *INCY;
+
+  blasint info;
+  int uplo;
+  FLOAT *buffer;
+#ifdef SMP
+  int nthreads;
+#endif
+
+  PRINT_DEBUG_NAME;
+
+  TOUPPER(uplo_arg);
+  uplo  = -1;
+
+  if (uplo_arg  == 'U') uplo  = 0;
+  if (uplo_arg  == 'L') uplo  = 1;
+ 
+  info = 0;
+
+  if (incy == 0)          info =  9;
+  if (incx == 0)          info =  6;
+  if (n < 0)              info =  2;
+  if (uplo  < 0)          info =  1;
+
+  if (info != 0) {
+    BLASFUNC(xerbla)(ERROR_NAME, &info, sizeof(ERROR_NAME));
+    return;
+  }
+  
+#else
+
+void CNAME(enum CBLAS_ORDER order,
+	   enum CBLAS_UPLO Uplo,
+	   blasint n,
+	   FLOAT alpha,
+	   FLOAT  *a,
+	   FLOAT  *x, blasint incx,
+	   FLOAT beta,
+	   FLOAT  *y, blasint incy){
+
+  FLOAT *buffer;
+  int uplo;
+  blasint info;
+#ifdef SMP
+  int nthreads;
+#endif
+
+  PRINT_DEBUG_CNAME;
+
+  uplo = -1;
+  info =  0;
+
+  if (order == CblasColMajor) {
+    if (Uplo == CblasUpper)         uplo  = 0;
+    if (Uplo == CblasLower)         uplo  = 1;
+    
+    info = -1;
+
+    if (incy == 0)          info =  9;
+    if (incx == 0)          info =  6;
+    if (n < 0)              info =  2;
+    if (uplo  < 0)          info =  1;
+  }
+
+  if (order == CblasRowMajor) {
+    if (Uplo == CblasUpper)         uplo  = 1;
+    if (Uplo == CblasLower)         uplo  = 0;
+
+    info = -1;
+
+    if (incy == 0)          info =  9;
+    if (incx == 0)          info =  6;
+    if (n < 0)              info =  2;
+    if (uplo  < 0)          info =  1;
+  }
+
+  if (info >= 0) {
+    BLASFUNC(xerbla)(ERROR_NAME, &info, sizeof(ERROR_NAME));
+    return;
+  }
+
+#endif
+
+  if (n == 0) return;
+
+  if (beta != ONE) SCAL_K(n, 0, 0, beta, y, abs(incy), NULL, 0, NULL, 0);
+
+  if (alpha == ZERO) return;
+
+  IDEBUG_START;
+
+  FUNCTION_PROFILE_START();
+
+  if (incx < 0 ) x -= (n - 1) * incx;
+  if (incy < 0 ) y -= (n - 1) * incy;
+
+  buffer = (FLOAT *)blas_memory_alloc(1);
+
+#ifdef SMP
+  nthreads = num_cpu_avail(2);
+
+  if (nthreads == 1) {
+#endif
+
+  (spmv[uplo])(n, alpha, a, x, incx, y, incy, buffer);
+
+#ifdef SMP
+  } else {
+
+    (spmv_thread[uplo])(n, alpha, a, x, incx, y, incy, buffer, nthreads);
+
+  }
+#endif
+
+  blas_memory_free(buffer);
+
+  FUNCTION_PROFILE_END(1, n * n / 2 + n, n * n);
+
+  IDEBUG_END;
+
+  return;
+}