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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 */
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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 */
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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 "QSPMV "
49 #define ERROR_NAME "DSPMV "
51 #define ERROR_NAME "SSPMV "
54 static int (*spmv[])(BLASLONG, FLOAT, FLOAT *, FLOAT *, BLASLONG, FLOAT *, BLASLONG, void *) = {
65 static int (*spmv_thread[])(BLASLONG, FLOAT, FLOAT *, FLOAT *, BLASLONG, FLOAT *, BLASLONG, FLOAT *, int) = {
67 qspmv_thread_U, qspmv_thread_L,
69 dspmv_thread_U, dspmv_thread_L,
71 sspmv_thread_U, sspmv_thread_L,
78 void NAME(char *UPLO, blasint *N, FLOAT *ALPHA, FLOAT *a,
79 FLOAT *x, blasint *INCX, FLOAT *BETA, FLOAT *y, blasint *INCY){
81 char uplo_arg = *UPLO;
100 if (uplo_arg == 'U') uplo = 0;
101 if (uplo_arg == 'L') uplo = 1;
105 if (incy == 0) info = 9;
106 if (incx == 0) info = 6;
108 if (uplo < 0) info = 1;
111 BLASFUNC(xerbla)(ERROR_NAME, &info, sizeof(ERROR_NAME));
117 void CNAME(enum CBLAS_ORDER order,
118 enum CBLAS_UPLO Uplo,
122 FLOAT *x, blasint incx,
124 FLOAT *y, blasint incy){
138 if (order == CblasColMajor) {
139 if (Uplo == CblasUpper) uplo = 0;
140 if (Uplo == CblasLower) uplo = 1;
144 if (incy == 0) info = 9;
145 if (incx == 0) info = 6;
147 if (uplo < 0) info = 1;
150 if (order == CblasRowMajor) {
151 if (Uplo == CblasUpper) uplo = 1;
152 if (Uplo == CblasLower) uplo = 0;
156 if (incy == 0) info = 9;
157 if (incx == 0) info = 6;
159 if (uplo < 0) info = 1;
163 BLASFUNC(xerbla)(ERROR_NAME, &info, sizeof(ERROR_NAME));
171 if (beta != ONE) SCAL_K(n, 0, 0, beta, y, blasabs(incy), NULL, 0, NULL, 0);
173 if (alpha == ZERO) return;
177 FUNCTION_PROFILE_START();
179 if (incx < 0 ) x -= (n - 1) * incx;
180 if (incy < 0 ) y -= (n - 1) * incy;
182 buffer = (FLOAT *)blas_memory_alloc(1);
185 nthreads = num_cpu_avail(2);
190 (spmv[uplo])(n, alpha, a, x, incx, y, incy, buffer);
195 (spmv_thread[uplo])(n, alpha, a, x, incx, y, incy, buffer, nthreads);
200 blas_memory_free(buffer);
202 FUNCTION_PROFILE_END(1, n * n / 2 + n, n * n);