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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"
#define GEMM_PQ MAX(GEMM_P, GEMM_Q)
#define REAL_GEMM_R (GEMM_R - GEMM_PQ)
static FLOAT dm1 = -1.;
blasint CNAME(blas_arg_t *args, BLASLONG *range_m, BLASLONG *range_n, FLOAT *sa, FLOAT *sb, BLASLONG myid) {
BLASLONG m, n, lda, offset;
BLASLONG j, js, jmin, is, imin, jc, jcmin;
BLASLONG jjs, min_jj;
blasint *ipiv, iinfo, info;
BLASLONG jb, mn, blocking;
FLOAT *a, *offsetA, *offsetB;
BLASLONG range_N[2];
FLOAT *sbb;
m = args -> m;
n = args -> n;
a = (FLOAT *)args -> a;
lda = args -> lda;
ipiv = (blasint *)args -> c;
offset = 0;
if (range_n) {
m -= range_n[0];
n = range_n[1] - range_n[0];
offset = range_n[0];
a += range_n[0] * (lda + 1) * COMPSIZE;
}
if (m <= 0 || n <= 0) return 0;
mn = MIN(m, n);
blocking = (mn / 2 + GEMM_UNROLL_N - 1) & ~(GEMM_UNROLL_N - 1);
if (blocking > GEMM_Q) blocking = GEMM_Q;
if (blocking <= GEMM_UNROLL_N * 2) {
info = GETF2(args, NULL, range_n, sa, sb, 0);
return info;
}
sbb = (FLOAT *)((((BLASULONG)(sb + blocking * blocking * COMPSIZE) + GEMM_ALIGN) & ~GEMM_ALIGN) + GEMM_OFFSET_B);
info = 0;
for (j = 0; j < mn; j += blocking) {
jb = mn - j;
if (jb > blocking) jb = blocking;
offsetA = a + j * lda * COMPSIZE;
offsetB = a + (j + jb) * lda * COMPSIZE;
range_N[0] = offset + j;
range_N[1] = offset + j + jb;
iinfo = CNAME(args, NULL, range_N, sa, sb, 0);
if (iinfo && !info) info = iinfo + j;
if (j + jb < n) {
TRSM_ILTCOPY(jb, jb, offsetA + j * COMPSIZE, lda, 0, sb);
for (js = j + jb; js < n; js += REAL_GEMM_R){
jmin = n - js;
if (jmin > REAL_GEMM_R) jmin = REAL_GEMM_R;
for (jjs = js; jjs < js + jmin; jjs += GEMM_UNROLL_N){
min_jj = js + jmin - jjs;
if (min_jj > GEMM_UNROLL_N) min_jj = GEMM_UNROLL_N;
#if 1
LASWP_PLUS(min_jj, j + offset + 1, j + jb + offset, ZERO,
#ifdef COMPLEX
ZERO,
#endif
a + (- offset + jjs * lda) * COMPSIZE, lda, NULL, 0 , ipiv, 1);
GEMM_ONCOPY (jb, min_jj, a + (j + jjs * lda) * COMPSIZE, lda, sbb + jb * (jjs - js) * COMPSIZE);
#else
LASWP_NCOPY(min_jj, j + offset + 1, j + jb + offset,
a + (- offset + jjs * lda) * COMPSIZE, lda, ipiv, sbb + jb * (jjs - js) * COMPSIZE);
#endif
for (jc = 0; jc < jb; jc += GEMM_P) {
jcmin = jb - jc;
if (jcmin > GEMM_P) jcmin = GEMM_P;
TRSM_KERNEL_LT(jcmin, min_jj, jb, dm1,
#ifdef COMPLEX
ZERO,
#endif
sb + jb * jc * COMPSIZE,
sbb + jb * (jjs - js) * COMPSIZE,
a + (j + jc + jjs * lda) * COMPSIZE, lda, jc);
}
}
for (is = j + jb; is < m; is += GEMM_P){
imin = m - is;
if (imin > GEMM_P) imin = GEMM_P;
GEMM_ITCOPY (jb, imin, offsetA + is * COMPSIZE, lda, sa);
GEMM_KERNEL_N(imin, jmin, jb, dm1,
#ifdef COMPLEX
ZERO,
#endif
sa, sbb, a + (is + js * lda) * COMPSIZE, lda);
}
}
}
}
for (j = 0; j < mn; j += jb) {
jb = MIN(mn - j, blocking);
LASWP_PLUS(jb, j + jb + offset + 1, mn + offset, ZERO,
#ifdef COMPLEX
ZERO,
#endif
a - (offset - j * lda) * COMPSIZE, lda, NULL, 0 , ipiv, 1);
}
return info;
}
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