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/*********************************************************************/
/* 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 "common.h"
#ifndef CONJA
#ifndef CONJB
#define GEMM_KERNEL GEMM_KERNEL_N
#else
#define GEMM_KERNEL GEMM_KERNEL_R
#endif
#else
#ifndef CONJB
#define GEMM_KERNEL GEMM_KERNEL_L
#else
#define GEMM_KERNEL GEMM_KERNEL_B
#endif
#endif
int CNAME(BLASLONG m, BLASLONG n, BLASLONG k, FLOAT alpha_r,
#ifdef COMPLEX
FLOAT alpha_i,
#endif
FLOAT *a, FLOAT *b, FLOAT *c, BLASLONG ldc, BLASLONG offset){
BLASLONG i, j;
BLASLONG loop;
FLOAT *cc, *ss;
FLOAT subbuffer[GEMM_UNROLL_MN * (GEMM_UNROLL_MN + 1) * COMPSIZE];
if (m + offset < 0) {
#ifndef LOWER
GEMM_KERNEL(m, n, k,
alpha_r,
#ifdef COMPLEX
alpha_i,
#endif
a, b, c, ldc);
#endif
return 0;
}
if (n < offset) {
#ifdef LOWER
GEMM_KERNEL(m, n, k,
alpha_r,
#ifdef COMPLEX
alpha_i,
#endif
a, b, c, ldc);
#endif
return 0;
}
if (offset > 0) {
#ifdef LOWER
GEMM_KERNEL(m, offset, k,
alpha_r,
#ifdef COMPLEX
alpha_i,
#endif
a, b, c, ldc);
#endif
b += offset * k * COMPSIZE;
c += offset * ldc * COMPSIZE;
n -= offset;
offset = 0;
if (n <= 0) return 0;
}
if (n > m + offset) {
#ifndef LOWER
GEMM_KERNEL(m, n - m - offset, k,
alpha_r,
#ifdef COMPLEX
alpha_i,
#endif
a,
b + (m + offset) * k * COMPSIZE,
c + (m + offset) * ldc * COMPSIZE, ldc);
#endif
n = m + offset;
if (n <= 0) return 0;
}
if (offset < 0) {
#ifndef LOWER
GEMM_KERNEL(-offset, n, k,
alpha_r,
#ifdef COMPLEX
alpha_i,
#endif
a, b, c, ldc);
#endif
a -= offset * k * COMPSIZE;
c -= offset * COMPSIZE;
m += offset;
offset = 0;
if (m <= 0) return 0;
}
if (m > n - offset) {
#ifdef LOWER
GEMM_KERNEL(m - n + offset, n, k,
alpha_r,
#ifdef COMPLEX
alpha_i,
#endif
a + (n - offset) * k * COMPSIZE,
b,
c + (n - offset) * COMPSIZE, ldc);
#endif
m = n + offset;
if (m <= 0) return 0;
}
for (loop = 0; loop < n; loop += GEMM_UNROLL_MN) {
int mm, nn;
mm = (loop/GEMM_UNROLL_MN) * GEMM_UNROLL_MN;
nn = MIN(GEMM_UNROLL_MN, n - loop);
#ifndef LOWER
GEMM_KERNEL(mm, nn, k,
alpha_r,
#ifdef COMPLEX
alpha_i,
#endif
a, b + loop * k * COMPSIZE, c + loop * ldc * COMPSIZE, ldc);
#endif
GEMM_BETA(nn, nn, 0, ZERO,
#ifdef COMPLEX
ZERO,
#endif
NULL, 0, NULL, 0, subbuffer, nn);
GEMM_KERNEL(nn, nn, k,
alpha_r,
#ifdef COMPLEX
alpha_i,
#endif
a + loop * k * COMPSIZE, b + loop * k * COMPSIZE, subbuffer, nn);
cc = c + (loop + loop * ldc) * COMPSIZE;
ss = subbuffer;
#ifndef LOWER
for (j = 0; j < nn; j ++) {
for (i = 0; i <= j; i ++) {
#ifndef COMPLEX
cc[i] += ss[i];
#else
cc[i * 2 + 0] += ss[i * 2 + 0];
cc[i * 2 + 1] += ss[i * 2 + 1];
#endif
}
ss += nn * COMPSIZE;
cc += ldc * COMPSIZE;
}
#else
for (j = 0; j < nn; j ++) {
for (i = j; i < nn; i ++) {
#ifndef COMPLEX
cc[i] += ss[i];
#else
cc[i * 2 + 0] += ss[i * 2 + 0];
cc[i * 2 + 1] += ss[i * 2 + 1];
#endif
}
ss += nn * COMPSIZE;
cc += ldc * COMPSIZE;
}
#endif
#ifdef LOWER
GEMM_KERNEL(m - mm - nn, nn, k,
alpha_r,
#ifdef COMPLEX
alpha_i,
#endif
a + (mm + nn) * k * COMPSIZE, b + loop * k * COMPSIZE,
c + (mm + nn + loop * ldc) * COMPSIZE, ldc);
#endif
}
return 0;
}
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