223 lines
6.9 KiB
C
223 lines
6.9 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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#define GEMM_PQ MAX(GEMM_P, GEMM_Q)
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#define REAL_GEMM_R (GEMM_R - GEMM_PQ)
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static FLOAT dm1 = -1.;
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static void inner_thread(blas_arg_t *args, BLASLONG *range_m, BLASLONG *range_n, FLOAT *sa, FLOAT *sb, BLASLONG mypos){
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BLASLONG is, min_i;
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BLASLONG js, min_j;
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BLASLONG jjs, min_jj;
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BLASLONG m = args -> m;
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BLASLONG n = args -> n;
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BLASLONG k = args -> k;
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BLASLONG lda = args -> lda;
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BLASLONG off = args -> ldb;
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FLOAT *b = (FLOAT *)args -> b + (k ) * COMPSIZE;
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FLOAT *c = (FLOAT *)args -> b + ( k * lda) * COMPSIZE;
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FLOAT *d = (FLOAT *)args -> b + (k + k * lda) * COMPSIZE;
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blasint *ipiv = (blasint *)args -> c;
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if (range_n) {
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n = range_n[1] - range_n[0];
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c += range_n[0] * lda * COMPSIZE;
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d += range_n[0] * lda * COMPSIZE;
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}
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for (js = 0; js < n; js += REAL_GEMM_R) {
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min_j = n - js;
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if (min_j > REAL_GEMM_R) min_j = REAL_GEMM_R;
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for (jjs = js; jjs < js + min_j; jjs += GEMM_UNROLL_N){
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min_jj = js + min_j - jjs;
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if (min_jj > GEMM_UNROLL_N) min_jj = GEMM_UNROLL_N;
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LASWP_NCOPY(min_jj, off + 1, off + k,
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c + (- off + jjs * lda) * COMPSIZE, lda,
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ipiv, sb + k * (jjs - js) * COMPSIZE);
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for (is = 0; is < k; is += GEMM_P) {
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min_i = k - is;
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if (min_i > GEMM_P) min_i = GEMM_P;
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TRSM_KERNEL_LT(min_i, min_jj, k, dm1,
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#ifdef COMPLEX
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ZERO,
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#endif
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(FLOAT *)args -> a + k * is * COMPSIZE,
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sb + (jjs - js) * k * COMPSIZE,
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c + (is + jjs * lda) * COMPSIZE, lda, is);
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}
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}
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for (is = 0; is < m; is += GEMM_P){
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min_i = m - is;
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if (min_i > GEMM_P) min_i = GEMM_P;
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GEMM_ITCOPY (k, min_i, b + is * COMPSIZE, lda, sa);
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GEMM_KERNEL_N(min_i, min_j, k, dm1,
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#ifdef COMPLEX
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ZERO,
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#endif
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sa, sb, d + (is + js * lda) * COMPSIZE, lda);
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}
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}
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}
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blasint CNAME(blas_arg_t *args, BLASLONG *range_m, BLASLONG *range_n, FLOAT *sa, FLOAT *sb, BLASLONG myid) {
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BLASLONG m, n, lda, offset;
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blasint *ipiv, iinfo, info;
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BLASLONG j, jb, mn, blocking;
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FLOAT *a, *offsetA, *offsetB;
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BLASLONG range_N[2];
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blas_arg_t newarg;
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int mode;
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FLOAT *sbb;
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#ifndef COMPLEX
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#ifdef XDOUBLE
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mode = BLAS_XDOUBLE | BLAS_REAL;
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#elif defined(DOUBLE)
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mode = BLAS_DOUBLE | BLAS_REAL;
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#else
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mode = BLAS_SINGLE | BLAS_REAL;
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#endif
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#else
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#ifdef XDOUBLE
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mode = BLAS_XDOUBLE | BLAS_COMPLEX;
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#elif defined(DOUBLE)
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mode = BLAS_DOUBLE | BLAS_COMPLEX;
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#else
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mode = BLAS_SINGLE | BLAS_COMPLEX;
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#endif
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#endif
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m = args -> m;
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n = args -> n;
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a = (FLOAT *)args -> a;
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lda = args -> lda;
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ipiv = (blasint *)args -> c;
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offset = 0;
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if (range_n) {
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m -= range_n[0];
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n = range_n[1] - range_n[0];
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offset = range_n[0];
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a += range_n[0] * (lda + 1) * COMPSIZE;
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}
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if (m <= 0 || n <= 0) return 0;
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mn = MIN(m, n);
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blocking = (mn / 2 + GEMM_UNROLL_N - 1) & ~(GEMM_UNROLL_N - 1);
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if (blocking > GEMM_Q) blocking = GEMM_Q;
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if (blocking <= GEMM_UNROLL_N * 2) {
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info = GETF2(args, NULL, range_n, sa, sb, 0);
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return info;
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}
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sbb = (FLOAT *)((((long)(sb + blocking * blocking * COMPSIZE) + GEMM_ALIGN) & ~GEMM_ALIGN) + GEMM_OFFSET_B);
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info = 0;
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for (j = 0; j < mn; j += blocking) {
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jb = mn - j;
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if (jb > blocking) jb = blocking;
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offsetA = a + j * lda * COMPSIZE;
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offsetB = a + (j + jb) * lda * COMPSIZE;
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range_N[0] = offset + j;
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range_N[1] = offset + j + jb;
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iinfo = CNAME(args, NULL, range_N, sa, sb, 0);
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if (iinfo && !info) info = iinfo + j;
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if (j + jb < n) {
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TRSM_ILTCOPY(jb, jb, offsetA + j * COMPSIZE, lda, 0, sb);
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newarg.m = m - jb - j;
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newarg.n = n - jb - j;
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newarg.k = jb;
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newarg.a = sb;
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newarg.lda = lda;
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newarg.b = a + (j + j * lda) * COMPSIZE;
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newarg.ldb = j + offset;
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newarg.c = ipiv;
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newarg.common = NULL;
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newarg.nthreads = args -> nthreads;
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gemm_thread_n(mode, &newarg, NULL, NULL, (void *)inner_thread, sa, sbb, args -> nthreads);
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}
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}
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for (j = 0; j < mn; j += jb) {
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jb = MIN(mn - j, blocking);
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LASWP_PLUS(jb, j + jb + offset + 1, mn + offset, ZERO,
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#ifdef COMPLEX
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ZERO,
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#endif
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a - (offset - j * lda) * COMPSIZE, lda, NULL, 0 , ipiv, 1);
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}
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return info;
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}
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