130 lines
4.8 KiB
C
130 lines
4.8 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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blasint CNAME(blas_arg_t *args, BLASLONG *range_m, BLASLONG *range_n, FLOAT *sa, FLOAT *sb, BLASLONG myid) {
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BLASLONG n, bk, i, blocking, lda;
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BLASLONG info;
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int mode;
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blas_arg_t newarg;
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FLOAT *a;
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FLOAT alpha[2] = { -ONE, ZERO};
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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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if (args -> nthreads == 1) {
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info = POTRF_L_SINGLE(args, NULL, NULL, sa, sb, 0);
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return info;
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}
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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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if (range_n) n = range_n[1] - range_n[0];
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if (n <= GEMM_UNROLL_N * 4) {
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info = POTRF_L_SINGLE(args, NULL, range_n, sa, sb, 0);
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return info;
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}
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newarg.lda = lda;
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newarg.ldb = lda;
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newarg.ldc = lda;
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newarg.alpha = alpha;
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newarg.beta = NULL;
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newarg.nthreads = args -> nthreads;
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blocking = (n / 2 + GEMM_UNROLL_N - 1) & ~(GEMM_UNROLL_N - 1);
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if (blocking > GEMM_Q) blocking = GEMM_Q;
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for (i = 0; i < n; i += blocking) {
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bk = n - i;
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if (bk > blocking) bk = blocking;
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newarg.m = bk;
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newarg.n = bk;
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newarg.a = a + (i + i * lda) * COMPSIZE;
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info = CNAME(&newarg, NULL, NULL, sa, sb, 0);
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if (info) return info + i;
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if (n - i - bk > 0) {
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newarg.m = n - i - bk;
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newarg.n = bk;
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newarg.a = a + (i + i * lda) * COMPSIZE;
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newarg.b = a + (i + bk + i * lda) * COMPSIZE;
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gemm_thread_m(mode | BLAS_RSIDE | BLAS_TRANSA_T | BLAS_UPLO,
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&newarg, NULL, NULL, (void *)TRSM_RCLN, sa, sb, args -> nthreads);
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newarg.n = n - i - bk;
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newarg.k = bk;
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newarg.a = a + (i + bk + i * lda) * COMPSIZE;
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newarg.c = a + (i + bk + (i + bk) * lda) * COMPSIZE;
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#ifndef USE_SIMPLE_THREADED_LEVEL3
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HERK_THREAD_LN(&newarg, NULL, NULL, sa, sb, 0);
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#else
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syrk_thread(mode | BLAS_TRANSA_N | BLAS_TRANSB_T | BLAS_UPLO,
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&newarg, NULL, NULL, (void *)HERK_LN, sa, sb, args -> nthreads);
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#endif
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}
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}
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return 0;
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}
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