282 lines
8.0 KiB
C
282 lines
8.0 KiB
C
/*********************************************************************/
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/* Copyright 2009, 2010 The University of Texas at Austin. */
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/* All rights reserved. */
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/* */
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/* Redistribution and use in source and binary forms, with or */
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/* without modification, are permitted provided that the following */
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/* conditions are met: */
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/* */
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/* 1. Redistributions of source code must retain the above */
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/* copyright notice, this list of conditions and the following */
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/* disclaimer. */
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/* */
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/* 2. Redistributions in binary form must reproduce the above */
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/* copyright notice, this list of conditions and the following */
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/* disclaimer in the documentation and/or other materials */
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/* provided with the distribution. */
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/* */
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/* THIS SOFTWARE IS PROVIDED BY THE UNIVERSITY OF TEXAS AT */
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/* AUSTIN ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, */
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/* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF */
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/* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE */
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/* DISCLAIMED. IN NO EVENT SHALL THE UNIVERSITY OF TEXAS AT */
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/* AUSTIN OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, */
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/* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES */
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/* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE */
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/* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR */
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/* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF */
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/* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT */
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/* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT */
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/* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE */
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/* POSSIBILITY OF SUCH DAMAGE. */
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/* */
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/* The views and conclusions contained in the software and */
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/* documentation are those of the authors and should not be */
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/* interpreted as representing official policies, either expressed */
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/* or implied, of The University of Texas at Austin. */
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/*********************************************************************/
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#include <stdio.h>
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#include "common.h"
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#ifdef FUNCTION_PROFILE
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#include "functable.h"
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#endif
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#ifdef XDOUBLE
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#define ERROR_NAME "XGEMV "
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#elif defined(DOUBLE)
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#define ERROR_NAME "ZGEMV "
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#else
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#define ERROR_NAME "CGEMV "
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#endif
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#ifdef SMP
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static int (*gemv_thread[])(BLASLONG, BLASLONG, FLOAT *, FLOAT *, BLASLONG, FLOAT * , BLASLONG, FLOAT *, BLASLONG, FLOAT *, int) = {
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#ifdef XDOUBLE
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xgemv_thread_n, xgemv_thread_t, xgemv_thread_r, xgemv_thread_c, xgemv_thread_o, xgemv_thread_u, xgemv_thread_s, xgemv_thread_d,
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#elif defined DOUBLE
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zgemv_thread_n, zgemv_thread_t, zgemv_thread_r, zgemv_thread_c, zgemv_thread_o, zgemv_thread_u, zgemv_thread_s, zgemv_thread_d,
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#else
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cgemv_thread_n, cgemv_thread_t, cgemv_thread_r, cgemv_thread_c, cgemv_thread_o, cgemv_thread_u, cgemv_thread_s, cgemv_thread_d,
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#endif
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};
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#endif
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#ifndef CBLAS
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void NAME(char *TRANS, blasint *M, blasint *N,
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FLOAT *ALPHA, FLOAT *a, blasint *LDA,
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FLOAT *x, blasint *INCX,
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FLOAT *BETA, FLOAT *y, blasint *INCY){
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char trans = *TRANS;
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blasint m = *M;
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blasint n = *N;
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blasint lda = *LDA;
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blasint incx = *INCX;
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blasint incy = *INCY;
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FLOAT *buffer;
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int buffer_size;
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#ifdef SMP
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int nthreads;
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#endif
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int (*gemv[])(BLASLONG, BLASLONG, BLASLONG, FLOAT, FLOAT, FLOAT *, BLASLONG,
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FLOAT * , BLASLONG, FLOAT *, BLASLONG, FLOAT *) = {
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GEMV_N, GEMV_T, GEMV_R, GEMV_C,
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GEMV_O, GEMV_U, GEMV_S, GEMV_D,
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};
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blasint info;
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blasint lenx, leny;
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blasint i;
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FLOAT alpha_r = *(ALPHA + 0);
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FLOAT alpha_i = *(ALPHA + 1);
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FLOAT beta_r = *(BETA + 0);
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FLOAT beta_i = *(BETA + 1);
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PRINT_DEBUG_NAME;
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TOUPPER(trans);
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info = 0;
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i = -1;
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if (trans == 'N') i = 0;
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if (trans == 'T') i = 1;
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if (trans == 'R') i = 2;
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if (trans == 'C') i = 3;
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if (trans == 'O') i = 4;
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if (trans == 'U') i = 5;
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if (trans == 'S') i = 6;
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if (trans == 'D') i = 7;
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if (incy == 0) info = 11;
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if (incx == 0) info = 8;
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if (lda < MAX(1,m)) info = 6;
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if (n < 0) info = 3;
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if (m < 0) info = 2;
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if (i < 0) info = 1;
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trans = i;
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if (info != 0) {
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BLASFUNC(xerbla)(ERROR_NAME, &info, sizeof(ERROR_NAME));
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return;
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}
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#else
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void CNAME(enum CBLAS_ORDER order,
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enum CBLAS_TRANSPOSE TransA,
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blasint m, blasint n,
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void *VALPHA,
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void *va, blasint lda,
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void *vx, blasint incx,
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void *VBETA,
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void *vy, blasint incy){
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FLOAT *ALPHA = (FLOAT*) VALPHA;
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FLOAT *a = (FLOAT*) va;
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FLOAT *x = (FLOAT*) vx;
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FLOAT *BETA = (FLOAT*) VBETA;
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FLOAT *y = (FLOAT*) vy;
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FLOAT *buffer;
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blasint lenx, leny;
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int trans, buffer_size;
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blasint info, t;
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#ifdef SMP
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int nthreads;
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#endif
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int (*gemv[])(BLASLONG, BLASLONG, BLASLONG, FLOAT, FLOAT, FLOAT *, BLASLONG,
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FLOAT * , BLASLONG, FLOAT *, BLASLONG, FLOAT *) = {
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GEMV_N, GEMV_T, GEMV_R, GEMV_C,
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GEMV_O, GEMV_U, GEMV_S, GEMV_D,
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};
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FLOAT alpha_r = *(ALPHA + 0);
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FLOAT alpha_i = *(ALPHA + 1);
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FLOAT beta_r = *(BETA + 0);
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FLOAT beta_i = *(BETA + 1);
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PRINT_DEBUG_CNAME;
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trans = -1;
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info = 0;
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if (order == CblasColMajor) {
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if (TransA == CblasNoTrans) trans = 0;
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if (TransA == CblasTrans) trans = 1;
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if (TransA == CblasConjNoTrans) trans = 2;
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if (TransA == CblasConjTrans) trans = 3;
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info = -1;
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if (incy == 0) info = 11;
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if (incx == 0) info = 8;
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if (lda < MAX(1, m)) info = 6;
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if (n < 0) info = 3;
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if (m < 0) info = 2;
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if (trans < 0) info = 1;
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}
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if (order == CblasRowMajor) {
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if (TransA == CblasNoTrans) trans = 1;
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if (TransA == CblasTrans) trans = 0;
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if (TransA == CblasConjNoTrans) trans = 3;
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if (TransA == CblasConjTrans) trans = 2;
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info = -1;
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t = n;
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n = m;
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m = t;
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if (incy == 0) info = 11;
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if (incx == 0) info = 8;
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if (lda < MAX(1, m)) info = 6;
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if (n < 0) info = 3;
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if (m < 0) info = 2;
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if (trans < 0) info = 1;
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}
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if (info >= 0) {
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BLASFUNC(xerbla)(ERROR_NAME, &info, sizeof(ERROR_NAME));
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return;
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}
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#endif
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/* Quick return if possible. */
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if (m == 0 || n == 0) return;
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lenx = n;
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leny = m;
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if (trans & 1) lenx = m;
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if (trans & 1) leny = n;
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if (beta_r != ONE || beta_i != ZERO) SCAL_K(leny, 0, 0, beta_r, beta_i, y, blasabs(incy), NULL, 0, NULL, 0);
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if (alpha_r == ZERO && alpha_i == ZERO) return;
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IDEBUG_START;
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FUNCTION_PROFILE_START();
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if (incx < 0) x -= (lenx - 1) * incx * 2;
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if (incy < 0) y -= (leny - 1) * incy * 2;
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buffer_size = 2 * (m + n) + 128 / sizeof(FLOAT);
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#ifdef WINDOWS_ABI
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buffer_size += 160 / sizeof(FLOAT) ;
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#endif
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// for alignment
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buffer_size = (buffer_size + 3) & ~3;
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STACK_ALLOC(buffer_size, FLOAT, buffer);
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#if defined(ARCH_X86_64) && defined(MAX_STACK_ALLOC) && MAX_STACK_ALLOC > 0
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// cgemv_t.S return NaN if there are NaN or Inf in the buffer (see bug #746)
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if(trans && stack_alloc_size)
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memset(buffer, 0, MIN(BUFFER_SIZE, sizeof(FLOAT) * buffer_size));
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#endif
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#ifdef SMP
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if ( 1L * m * n < 1024L * GEMM_MULTITHREAD_THRESHOLD )
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nthreads = 1;
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else
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nthreads = num_cpu_avail(2);
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if (nthreads == 1) {
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#endif
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(gemv[(int)trans])(m, n, 0, alpha_r, alpha_i, a, lda, x, incx, y, incy, buffer);
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#ifdef SMP
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} else {
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(gemv_thread[(int)trans])(m, n, ALPHA, a, lda, x, incx, y, incy, buffer, nthreads);
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}
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#endif
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STACK_FREE(buffer);
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FUNCTION_PROFILE_END(4, m * n + m + n, 2 * m * n);
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IDEBUG_END;
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return;
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}
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