1 /*********************************************************************/
2 /* Copyright 2009, 2010 The University of Texas at Austin. */
3 /* All rights reserved. */
5 /* Redistribution and use in source and binary forms, with or */
6 /* without modification, are permitted provided that the following */
7 /* conditions are met: */
9 /* 1. Redistributions of source code must retain the above */
10 /* copyright notice, this list of conditions and the following */
13 /* 2. Redistributions in binary form must reproduce the above */
14 /* copyright notice, this list of conditions and the following */
15 /* disclaimer in the documentation and/or other materials */
16 /* provided with the distribution. */
18 /* THIS SOFTWARE IS PROVIDED BY THE UNIVERSITY OF TEXAS AT */
19 /* AUSTIN ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, */
20 /* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF */
21 /* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE */
22 /* DISCLAIMED. IN NO EVENT SHALL THE UNIVERSITY OF TEXAS AT */
23 /* AUSTIN OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, */
24 /* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES */
25 /* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE */
26 /* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR */
27 /* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF */
28 /* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT */
29 /* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT */
30 /* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE */
31 /* POSSIBILITY OF SUCH DAMAGE. */
33 /* The views and conclusions contained in the software and */
34 /* documentation are those of the authors and should not be */
35 /* interpreted as representing official policies, either expressed */
36 /* or implied, of The University of Texas at Austin. */
37 /*********************************************************************/
42 #ifdef FUNCTION_PROFILE
43 #include "functable.h"
47 #define ERROR_NAME "XSPR2 "
49 #define ERROR_NAME "ZSPR2 "
51 #define ERROR_NAME "CSPR2 "
54 static int (*spr2[])(BLASLONG, FLOAT, FLOAT, FLOAT *, BLASLONG, FLOAT *, BLASLONG, FLOAT *, FLOAT *) = {
65 static int (*spr2_thread[])(BLASLONG, FLOAT *, FLOAT *, BLASLONG, FLOAT *, BLASLONG, FLOAT *, FLOAT *, int) = {
67 xspr2_thread_U, xspr2_thread_L,
69 zspr2_thread_U, zspr2_thread_L,
71 cspr2_thread_U, cspr2_thread_L,
76 void NAME(char *UPLO, blasint *N, FLOAT *ALPHA,
77 FLOAT *x, blasint *INCX, FLOAT *y, blasint *INCY, FLOAT *a){
79 char uplo_arg = *UPLO;
81 FLOAT alpha_r = ALPHA[0];
82 FLOAT alpha_i = ALPHA[1];
98 if (uplo_arg == 'U') uplo = 0;
99 if (uplo_arg == 'L') uplo = 1;
103 if (incy == 0) info = 7;
104 if (incx == 0) info = 5;
106 if (uplo < 0) info = 1;
109 BLASFUNC(xerbla)(ERROR_NAME, &info, sizeof(ERROR_NAME));
115 if ((alpha_r == ZERO) && (alpha_i == ZERO)) return;
119 FUNCTION_PROFILE_START();
121 if (incx < 0 ) x -= (n - 1) * incx;
122 if (incy < 0 ) y -= (n - 1) * incy;
124 buffer = (FLOAT *)blas_memory_alloc(1);
127 nthreads = num_cpu_avail(2);
132 (spr2[uplo])(n, alpha_r, alpha_i, x, incx, y, incy, a, buffer);
137 (spr2_thread[uplo])(n, ALPHA, x, incx, y, incy, a, buffer, nthreads);
142 blas_memory_free(buffer);
144 FUNCTION_PROFILE_END(4, n * n / 2 + 2 * n, 2 * n * n);