THUNDERX2T99: Add Optimized D/Z NRM2 Implementation
This commit is contained in:
Ashwin Sekhar T K
parent
738628e9a8
commit
a3935f0dfb
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@ -22,6 +22,10 @@ IZAMAXKERNEL = izamax_thunderx2t99.c
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SNRM2KERNEL = scnrm2_thunderx2t99.c
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CNRM2KERNEL = scnrm2_thunderx2t99.c
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#DNRM2KERNEL = dznrm2_thunderx2t99_fast.c
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#ZNRM2KERNEL = dznrm2_thunderx2t99_fast.c
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DNRM2KERNEL = dznrm2_thunderx2t99.c
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ZNRM2KERNEL = dznrm2_thunderx2t99.c
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DAXPYKERNEL = daxpy_thunderx2t99.S
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@ -0,0 +1,384 @@
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/***************************************************************************
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Copyright (c) 2017, The OpenBLAS Project
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are
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met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in
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the documentation and/or other materials provided with the
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distribution.
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3. Neither the name of the OpenBLAS project nor the names of
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its contributors may be used to endorse or promote products
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derived from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE OPENBLAS PROJECT OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
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USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*****************************************************************************/
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#include "common.h"
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#include <arm_neon.h>
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#if defined(SMP)
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extern int blas_level1_thread_with_return_value(int mode, BLASLONG m, BLASLONG n,
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BLASLONG k, void *alpha, void *a, BLASLONG lda, void *b, BLASLONG ldb,
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void *c, BLASLONG ldc, int (*function)(), int nthreads);
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#endif
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#define N "x0" /* vector length */
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#define X "x1" /* X vector address */
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#define INC_X "x2" /* X stride */
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#define J "x3" /* loop variable */
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#define K "x4" /* loop variable */
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#if !defined(COMPLEX)
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#define INC_SHIFT "3"
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#define SZ "8"
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#else
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#define INC_SHIFT "4"
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#define SZ "16"
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#endif
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#define SSQ "d0"
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#define SCALE "d1"
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#define REGZERO "d5"
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#define REGONE "d6"
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#define CUR_MAX "d7"
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#define CUR_MAXINV "d8"
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#define CUR_MAXINV_V "v8.2d"
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#define CUR_MAX_V "v8.2d"
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static void nrm2_compute(BLASLONG n, FLOAT *x, BLASLONG inc_x,
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double *ssq, double *scale)
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{
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*ssq = 0.0;
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*scale = 0.0;
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if (n <= 0) return;
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__asm__ __volatile__ (
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" mov "N", %[N_] \n"
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" mov "X", %[X_] \n"
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" mov "INC_X", %[INCX_] \n"
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" fmov "SCALE", xzr \n"
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" fmov "SSQ", #1.0 \n"
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" cmp "N", xzr \n"
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" ble .Lnrm2_kernel_L999 \n"
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" cmp "INC_X", xzr \n"
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" ble .Lnrm2_kernel_L999 \n"
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".Lnrm2_kernel_F_BEGIN: \n"
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" fmov "REGZERO", xzr \n"
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" fmov "REGONE", #1.0 \n"
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" lsl "INC_X", "INC_X", #"INC_SHIFT" \n"
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" mov "J", "N" \n"
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" cmp "J", xzr \n"
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" beq .Lnrm2_kernel_L999 \n"
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".Lnrm2_kernel_F_ZERO_SKIP: \n"
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" ldr d4, ["X"] \n"
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" fcmp d4, "REGZERO" \n"
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" bne .Lnrm2_kernel_F_INIT \n"
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#if defined(COMPLEX)
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" ldr d4, ["X", #8] \n"
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" fcmp d4, "REGZERO" \n"
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" bne .Lnrm2_kernel_F_INIT_I \n"
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#endif
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" add "X", "X", "INC_X" \n"
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" subs "J", "J", #1 \n"
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" beq .Lnrm2_kernel_L999 \n"
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" b .Lnrm2_kernel_F_ZERO_SKIP \n"
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".Lnrm2_kernel_F_INIT: \n"
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" ldr d4, ["X"] \n"
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" fabs d4, d4 \n"
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" fmax "CUR_MAX", "SCALE", d4 \n"
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" fdiv "SCALE", "SCALE", "CUR_MAX" \n"
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" fmul "SCALE", "SCALE", "SCALE" \n"
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" fmul "SSQ", "SSQ", "SCALE" \n"
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" fdiv d4, d4, "CUR_MAX" \n"
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" fmul d4, d4, d4 \n"
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" fadd "SSQ", "SSQ", d4 \n"
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" fmov "SCALE", "CUR_MAX" \n"
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#if defined(COMPLEX)
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".Lnrm2_kernel_F_INIT_I: \n"
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" ldr d3, ["X", #8] \n"
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" fabs d3, d3 \n"
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" fmax "CUR_MAX", "SCALE", d3 \n"
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" fdiv "SCALE", "SCALE", "CUR_MAX" \n"
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" fmul "SCALE", "SCALE", "SCALE" \n"
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" fmul "SSQ", "SSQ", "SCALE" \n"
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" fdiv d3, d3, "CUR_MAX" \n"
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" fmul d3, d3, d3 \n"
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" fadd "SSQ", "SSQ", d3 \n"
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" fmov "SCALE", "CUR_MAX" \n"
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#endif
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" add "X", "X", "INC_X" \n"
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" subs "J", "J", #1 \n"
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" beq .Lnrm2_kernel_L999 \n"
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".Lnrm2_kernel_F_START: \n"
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" cmp "INC_X", #"SZ" \n"
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" bne .Lnrm2_kernel_F1 \n"
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" asr "K", "J", #4 \n"
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" cmp "K", xzr \n"
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" beq .Lnrm2_kernel_F1 \n"
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".Lnrm2_kernel_F: \n"
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" ldp q16, q17, ["X"] \n"
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" ldp q18, q19, ["X", #32] \n"
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" ldp q20, q21, ["X", #64] \n"
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" ldp q22, q23, ["X", #96] \n"
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" add "X", "X", #128 \n"
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" fabs v16.2d, v16.2d \n"
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" fabs v17.2d, v17.2d \n"
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" fabs v18.2d, v18.2d \n"
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" fabs v19.2d, v19.2d \n"
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" fabs v20.2d, v20.2d \n"
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" fabs v21.2d, v21.2d \n"
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" fabs v22.2d, v22.2d \n"
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" fabs v23.2d, v23.2d \n"
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" fmaxp v24.2d, v16.2d, v17.2d \n"
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" fmaxp v25.2d, v18.2d, v19.2d \n"
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" fmaxp v26.2d, v20.2d, v21.2d \n"
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" fmaxp v27.2d, v22.2d, v23.2d \n"
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" fmaxp v24.2d, v24.2d, v25.2d \n"
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" fmaxp v26.2d, v26.2d, v27.2d \n"
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" fmaxp v24.2d, v24.2d, v26.2d \n"
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" fmaxp v24.2d, v24.2d, v24.2d \n"
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" fmax "CUR_MAX", "SCALE", d24 \n"
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" fdiv "CUR_MAXINV", "REGONE", "CUR_MAX" \n"
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" //dup "CUR_MAX_V", v7.d[0] \n"
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" fdiv "SCALE", "SCALE", "CUR_MAX" \n"
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" fmul "SCALE", "SCALE", "SCALE" \n"
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" fmul "SSQ", "SSQ", "SCALE" \n"
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" dup "CUR_MAXINV_V", v8.d[0] \n"
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" fmul v16.2d, v16.2d, "CUR_MAXINV_V" \n"
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" fmul v17.2d, v17.2d, "CUR_MAXINV_V" \n"
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" fmul v18.2d, v18.2d, "CUR_MAXINV_V" \n"
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" fmul v19.2d, v19.2d, "CUR_MAXINV_V" \n"
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" fmul v20.2d, v20.2d, "CUR_MAXINV_V" \n"
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" fmul v21.2d, v21.2d, "CUR_MAXINV_V" \n"
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" fmul v22.2d, v22.2d, "CUR_MAXINV_V" \n"
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" fmul v23.2d, v23.2d, "CUR_MAXINV_V" \n"
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" //fdiv v16.2d, v16.2d, "CUR_MAX_V" \n"
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" //fdiv v17.2d, v17.2d, "CUR_MAX_V" \n"
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" //fdiv v18.2d, v18.2d, "CUR_MAX_V" \n"
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" //fdiv v19.2d, v19.2d, "CUR_MAX_V" \n"
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" //fdiv v20.2d, v20.2d, "CUR_MAX_V" \n"
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" //fdiv v21.2d, v21.2d, "CUR_MAX_V" \n"
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" //fdiv v22.2d, v22.2d, "CUR_MAX_V" \n"
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" //fdiv v23.2d, v23.2d, "CUR_MAX_V" \n"
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" fmul v24.2d, v16.2d, v16.2d \n"
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" fmul v25.2d, v17.2d, v17.2d \n"
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" fmul v26.2d, v18.2d, v18.2d \n"
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" fmul v27.2d, v19.2d, v19.2d \n"
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" fmla v24.2d, v20.2d, v20.2d \n"
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" fmla v25.2d, v21.2d, v21.2d \n"
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" fmla v26.2d, v22.2d, v22.2d \n"
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" fmla v27.2d, v23.2d, v23.2d \n"
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" fadd v24.2d, v24.2d, v25.2d \n"
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" fadd v26.2d, v26.2d, v27.2d \n"
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" fadd v24.2d, v24.2d, v26.2d \n"
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" faddp d24, v24.2d \n"
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" fadd "SSQ", "SSQ", d24 \n"
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" fmov "SCALE", "CUR_MAX" \n"
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#if defined(COMPLEX)
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" ldp q16, q17, ["X"] \n"
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" ldp q18, q19, ["X", #32] \n"
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" ldp q20, q21, ["X", #64] \n"
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" ldp q22, q23, ["X", #96] \n"
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" add "X", "X", #128 \n"
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" fabs v16.2d, v16.2d \n"
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" fabs v17.2d, v17.2d \n"
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" fabs v18.2d, v18.2d \n"
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" fabs v19.2d, v19.2d \n"
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" fabs v20.2d, v20.2d \n"
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" fabs v21.2d, v21.2d \n"
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" fabs v22.2d, v22.2d \n"
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" fabs v23.2d, v23.2d \n"
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" fmaxp v24.2d, v16.2d, v17.2d \n"
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" fmaxp v25.2d, v18.2d, v19.2d \n"
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" fmaxp v26.2d, v20.2d, v21.2d \n"
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" fmaxp v27.2d, v22.2d, v23.2d \n"
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" fmaxp v24.2d, v24.2d, v25.2d \n"
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" fmaxp v26.2d, v26.2d, v27.2d \n"
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" fmaxp v24.2d, v24.2d, v26.2d \n"
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" fmaxp v24.2d, v24.2d, v24.2d \n"
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" fmax "CUR_MAX", "SCALE", d24 \n"
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" fdiv "CUR_MAXINV", "REGONE", "CUR_MAX" \n"
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" //dup "CUR_MAX_V", v7.d[0] \n"
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" fdiv "SCALE", "SCALE", "CUR_MAX" \n"
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" fmul "SCALE", "SCALE", "SCALE" \n"
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" fmul "SSQ", "SSQ", "SCALE" \n"
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" dup "CUR_MAXINV_V", v8.d[0] \n"
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" fmul v16.2d, v16.2d, "CUR_MAXINV_V" \n"
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" fmul v17.2d, v17.2d, "CUR_MAXINV_V" \n"
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" fmul v18.2d, v18.2d, "CUR_MAXINV_V" \n"
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" fmul v19.2d, v19.2d, "CUR_MAXINV_V" \n"
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" fmul v20.2d, v20.2d, "CUR_MAXINV_V" \n"
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" fmul v21.2d, v21.2d, "CUR_MAXINV_V" \n"
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" fmul v22.2d, v22.2d, "CUR_MAXINV_V" \n"
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" fmul v23.2d, v23.2d, "CUR_MAXINV_V" \n"
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" //fdiv v16.2d, v16.2d, "CUR_MAX_V" \n"
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" //fdiv v17.2d, v17.2d, "CUR_MAX_V" \n"
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" //fdiv v18.2d, v18.2d, "CUR_MAX_V" \n"
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" //fdiv v19.2d, v19.2d, "CUR_MAX_V" \n"
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" //fdiv v20.2d, v20.2d, "CUR_MAX_V" \n"
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" //fdiv v21.2d, v21.2d, "CUR_MAX_V" \n"
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" //fdiv v22.2d, v22.2d, "CUR_MAX_V" \n"
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" //fdiv v23.2d, v23.2d, "CUR_MAX_V" \n"
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" fmul v24.2d, v16.2d, v16.2d \n"
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" fmul v25.2d, v17.2d, v17.2d \n"
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" fmul v26.2d, v18.2d, v18.2d \n"
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" fmul v27.2d, v19.2d, v19.2d \n"
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" fmla v24.2d, v20.2d, v20.2d \n"
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" fmla v25.2d, v21.2d, v21.2d \n"
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" fmla v26.2d, v22.2d, v22.2d \n"
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" fmla v27.2d, v23.2d, v23.2d \n"
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" fadd v24.2d, v24.2d, v25.2d \n"
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" fadd v26.2d, v26.2d, v27.2d \n"
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" fadd v24.2d, v24.2d, v26.2d \n"
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" faddp d24, v24.2d \n"
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" fadd "SSQ", "SSQ", d24 \n"
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" fmov "SCALE", "CUR_MAX" \n"
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#endif
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" subs "K", "K", #1 \n"
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" bne .Lnrm2_kernel_F \n"
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".Lnrm2_kernel_F_DONE: \n"
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" ands "J", "J", #15 \n"
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" beq .Lnrm2_kernel_L999 \n"
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".Lnrm2_kernel_F1: \n"
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" ldr d4, ["X"] \n"
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" fabs d4, d4 \n"
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" fmax "CUR_MAX", "SCALE", d4 \n"
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" fdiv "SCALE", "SCALE", "CUR_MAX" \n"
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" fmul "SCALE", "SCALE", "SCALE" \n"
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" fmul "SSQ", "SSQ", "SCALE" \n"
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" fdiv d4, d4, "CUR_MAX" \n"
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" fmul d4, d4, d4 \n"
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" fadd "SSQ", "SSQ", d4 \n"
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" fmov "SCALE", "CUR_MAX" \n"
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#if defined(COMPLEX)
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" ldr d3, ["X", #8] \n"
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" fabs d3, d3 \n"
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" fmax "CUR_MAX", "SCALE", d3 \n"
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" fdiv "SCALE", "SCALE", "CUR_MAX" \n"
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" fmul "SCALE", "SCALE", "SCALE" \n"
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" fmul "SSQ", "SSQ", "SCALE" \n"
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" fdiv d3, d3, "CUR_MAX" \n"
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" fmul d3, d3, d3 \n"
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" fadd "SSQ", "SSQ", d3 \n"
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" fmov "SCALE", "CUR_MAX" \n"
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#endif
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" add "X", "X", "INC_X" \n"
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" subs "J", "J", #1 \n"
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" bne .Lnrm2_kernel_F1 \n"
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".Lnrm2_kernel_L999: \n"
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" str "SSQ", [%[SSQ_]] \n"
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" str "SCALE", [%[SCALE_]] \n"
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:
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: [SSQ_] "r" (ssq), //%0
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[SCALE_] "r" (scale), //%1
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[N_] "r" (n), //%2
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[X_] "r" (x), //%3
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[INCX_] "r" (inc_x) //%4
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: "cc",
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"memory",
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"x0", "x1", "x2", "x3", "x4", "x5",
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"d0", "d1", "d2", "d3", "d4", "d5", "d6", "d7"
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);
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}
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#if defined(SMP)
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static int nrm2_thread_function(BLASLONG n, BLASLONG dummy0,
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BLASLONG dummy1, FLOAT dummy2, FLOAT *x, BLASLONG inc_x, FLOAT *dummy3,
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BLASLONG dummy4, FLOAT *result, BLASLONG dummy5)
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{
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nrm2_compute(n, x, inc_x, result, result + 1);
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return 0;
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}
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#endif
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FLOAT CNAME(BLASLONG n, FLOAT *x, BLASLONG inc_x)
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{
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#if defined(SMP)
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int nthreads;
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FLOAT dummy_alpha[2];
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#endif
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FLOAT ssq, scale;
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|
||||
if (n <= 0 || inc_x <= 0) return 0.0;
|
||||
|
||||
#if defined(SMP)
|
||||
nthreads = num_cpu_avail(1);
|
||||
|
||||
if (n <= 10000)
|
||||
nthreads = 1;
|
||||
|
||||
if (nthreads == 1) {
|
||||
nrm2_compute(n, x, inc_x, &ssq, &scale);
|
||||
} else {
|
||||
int mode, i;
|
||||
char result[MAX_CPU_NUMBER * sizeof(double) * 2];
|
||||
double *ptr;
|
||||
|
||||
#if !defined(COMPLEX)
|
||||
mode = BLAS_DOUBLE | BLAS_REAL;
|
||||
#else
|
||||
mode = BLAS_DOUBLE | BLAS_COMPLEX;
|
||||
#endif
|
||||
|
||||
blas_level1_thread_with_return_value(mode, n, 0, 0, &dummy_alpha,
|
||||
x, inc_x, NULL, 0, result, 0,
|
||||
( void *)nrm2_thread_function, nthreads);
|
||||
|
||||
scale = 0.0;
|
||||
ssq = 1.0;
|
||||
ptr = (double *)result;
|
||||
for (i = 0; i < nthreads; i++) {
|
||||
FLOAT cur_scale, cur_ssq;
|
||||
|
||||
cur_ssq = *ptr;
|
||||
cur_scale = *(ptr + 1);
|
||||
|
||||
if (cur_scale != 0) {
|
||||
if (cur_scale > scale) {
|
||||
scale = (scale / cur_scale);
|
||||
ssq = ssq * scale * scale;
|
||||
ssq += cur_ssq;
|
||||
scale = cur_scale;
|
||||
} else {
|
||||
cur_scale = (cur_scale / scale);
|
||||
cur_ssq = cur_ssq * cur_scale * cur_scale;
|
||||
ssq += cur_ssq;
|
||||
}
|
||||
}
|
||||
|
||||
ptr = (double *)(((char *)ptr) + sizeof(double) * 2);
|
||||
}
|
||||
}
|
||||
#else
|
||||
nrm2_compute(n, x, inc_x, &ssq, &scale);
|
||||
#endif
|
||||
ssq = sqrt(ssq) * scale;
|
||||
|
||||
return ssq;
|
||||
}
|
||||
|
|
@ -0,0 +1,272 @@
|
|||
/***************************************************************************
|
||||
Copyright (c) 2017, The OpenBLAS Project
|
||||
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.
|
||||
3. Neither the name of the OpenBLAS project nor the names of
|
||||
its contributors may be used to endorse or promote products
|
||||
derived from this software without specific prior written permission.
|
||||
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 OPENBLAS PROJECT 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.
|
||||
*****************************************************************************/
|
||||
|
||||
|
||||
#include "common.h"
|
||||
|
||||
#include <arm_neon.h>
|
||||
|
||||
#if defined(SMP)
|
||||
extern int blas_level1_thread_with_return_value(int mode, BLASLONG m, BLASLONG n,
|
||||
BLASLONG k, void *alpha, void *a, BLASLONG lda, void *b, BLASLONG ldb,
|
||||
void *c, BLASLONG ldc, int (*function)(), int nthreads);
|
||||
#endif
|
||||
|
||||
#define N "x0" /* vector length */
|
||||
#define X "x1" /* X vector address */
|
||||
#define INC_X "x2" /* X stride */
|
||||
#define J "x5" /* loop variable */
|
||||
|
||||
#define TMPF "d16"
|
||||
#define SSQ "d0"
|
||||
|
||||
#if !defined(COMPLEX)
|
||||
#define N_DIV_SHIFT "5"
|
||||
#define N_REM_MASK "31"
|
||||
#define INC_SHIFT "3"
|
||||
#else
|
||||
#define N_DIV_SHIFT "4"
|
||||
#define N_REM_MASK "15"
|
||||
#define INC_SHIFT "4"
|
||||
#endif
|
||||
|
||||
|
||||
#define KERNEL_F \
|
||||
"ldp q16, q17, ["X"] \n" \
|
||||
"ldp q18, q19, ["X", #32] \n" \
|
||||
"ldp q20, q21, ["X", #64] \n" \
|
||||
"ldp q22, q23, ["X", #96] \n" \
|
||||
"ldp q24, q25, ["X", #128] \n" \
|
||||
"ldp q26, q27, ["X", #160] \n" \
|
||||
"ldp q28, q29, ["X", #192] \n" \
|
||||
"ldp q30, q31, ["X", #224] \n" \
|
||||
"add "X", "X", #256 \n" \
|
||||
"fmla v0.2d, v16.2d, v16.2d \n" \
|
||||
"fmla v1.2d, v17.2d, v17.2d \n" \
|
||||
"fmla v2.2d, v18.2d, v18.2d \n" \
|
||||
"fmla v3.2d, v19.2d, v19.2d \n" \
|
||||
"prfm PLDL1KEEP, ["X", #1024] \n" \
|
||||
"prfm PLDL1KEEP, ["X", #1024+64] \n" \
|
||||
"fmla v4.2d, v20.2d, v20.2d \n" \
|
||||
"fmla v5.2d, v21.2d, v21.2d \n" \
|
||||
"fmla v6.2d, v22.2d, v22.2d \n" \
|
||||
"fmla v7.2d, v23.2d, v23.2d \n" \
|
||||
"prfm PLDL1KEEP, ["X", #1024+128] \n" \
|
||||
"prfm PLDL1KEEP, ["X", #1024+192] \n" \
|
||||
"fmla v0.2d, v24.2d, v24.2d \n" \
|
||||
"fmla v1.2d, v25.2d, v25.2d \n" \
|
||||
"fmla v2.2d, v26.2d, v26.2d \n" \
|
||||
"fmla v3.2d, v27.2d, v27.2d \n" \
|
||||
"fmla v4.2d, v28.2d, v28.2d \n" \
|
||||
"fmla v5.2d, v29.2d, v29.2d \n" \
|
||||
"fmla v6.2d, v30.2d, v30.2d \n" \
|
||||
"fmla v7.2d, v31.2d, v31.2d \n"
|
||||
|
||||
|
||||
#if !defined(COMPLEX)
|
||||
#define KERNEL_F1 \
|
||||
"ldr "TMPF", ["X"] \n" \
|
||||
"add "X", "X", "INC_X" \n" \
|
||||
"fmadd "SSQ", "TMPF", "TMPF", "SSQ" \n"
|
||||
|
||||
#define KERNEL_F_FINALIZE \
|
||||
"fadd v0.2d, v0.2d, v1.2d \n" \
|
||||
"fadd v2.2d, v2.2d, v3.2d \n" \
|
||||
"fadd v4.2d, v4.2d, v5.2d \n" \
|
||||
"fadd v6.2d, v6.2d, v7.2d \n" \
|
||||
"fadd v0.2d, v0.2d, v2.2d \n" \
|
||||
"fadd v4.2d, v4.2d, v6.2d \n" \
|
||||
"fadd v0.2d, v0.2d, v4.2d \n" \
|
||||
"faddp "SSQ", v0.2d \n"
|
||||
|
||||
#define KERNEL_FINALIZE \
|
||||
""
|
||||
#else
|
||||
#define KERNEL_F1 \
|
||||
"ldr q16, ["X"] \n" \
|
||||
"add "X", "X", "INC_X" \n" \
|
||||
"fmla v0.2d, v16.2d, v16.2d \n"
|
||||
|
||||
#define KERNEL_F_FINALIZE \
|
||||
"fadd v0.2d, v0.2d, v1.2d \n" \
|
||||
"fadd v2.2d, v2.2d, v3.2d \n" \
|
||||
"fadd v4.2d, v4.2d, v5.2d \n" \
|
||||
"fadd v6.2d, v6.2d, v7.2d \n" \
|
||||
"fadd v0.2d, v0.2d, v2.2d \n" \
|
||||
"fadd v4.2d, v4.2d, v6.2d \n" \
|
||||
"fadd v0.2d, v0.2d, v4.2d \n"
|
||||
|
||||
#define KERNEL_FINALIZE \
|
||||
"faddp "SSQ", v0.2d \n"
|
||||
#endif
|
||||
|
||||
static double nrm2_compute(BLASLONG n, FLOAT *x, BLASLONG inc_x)
|
||||
{
|
||||
double ret = 0.0 ;
|
||||
|
||||
if (n <= 0) return ret;
|
||||
|
||||
__asm__ __volatile__ (
|
||||
" mov "N", %[N_] \n"
|
||||
" mov "X", %[X_] \n"
|
||||
" mov "INC_X", %[INCX_] \n"
|
||||
" fmov "SSQ", xzr \n"
|
||||
" fmov d1, xzr \n"
|
||||
" fmov d2, xzr \n"
|
||||
" fmov d3, xzr \n"
|
||||
" fmov d4, xzr \n"
|
||||
" fmov d5, xzr \n"
|
||||
" fmov d6, xzr \n"
|
||||
" fmov d7, xzr \n"
|
||||
" cmp "N", xzr \n"
|
||||
" ble .Lnrm2_kernel_L999 \n"
|
||||
" cmp "INC_X", xzr \n"
|
||||
" ble .Lnrm2_kernel_L999 \n"
|
||||
" cmp "INC_X", #1 \n"
|
||||
" bne .Lnrm2_kernel_S_BEGIN \n"
|
||||
|
||||
".Lnrm2_kernel_F_BEGIN: \n"
|
||||
" lsl "INC_X", "INC_X", #"INC_SHIFT" \n"
|
||||
" asr "J", "N", #"N_DIV_SHIFT" \n"
|
||||
" cmp "J", xzr \n"
|
||||
" beq .Lnrm2_kernel_F1 \n"
|
||||
|
||||
" .align 5 \n"
|
||||
".Lnrm2_kernel_F: \n"
|
||||
" "KERNEL_F" \n"
|
||||
" subs "J", "J", #1 \n"
|
||||
" bne .Lnrm2_kernel_F \n"
|
||||
" "KERNEL_F_FINALIZE" \n"
|
||||
|
||||
".Lnrm2_kernel_F1: \n"
|
||||
" ands "J", "N", #"N_REM_MASK" \n"
|
||||
" ble .Lnrm2_kernel_L999 \n"
|
||||
|
||||
".Lnrm2_kernel_F10: \n"
|
||||
" "KERNEL_F1" \n"
|
||||
" subs "J", "J", #1 \n"
|
||||
" bne .Lnrm2_kernel_F10 \n"
|
||||
" b .Lnrm2_kernel_L999 \n"
|
||||
|
||||
".Lnrm2_kernel_S_BEGIN: \n"
|
||||
" lsl "INC_X", "INC_X", #"INC_SHIFT" \n"
|
||||
" asr "J", "N", #2 \n"
|
||||
" cmp "J", xzr \n"
|
||||
" ble .Lnrm2_kernel_S1 \n"
|
||||
|
||||
".Lnrm2_kernel_S4: \n"
|
||||
" "KERNEL_F1" \n"
|
||||
" "KERNEL_F1" \n"
|
||||
" "KERNEL_F1" \n"
|
||||
" "KERNEL_F1" \n"
|
||||
" subs "J", "J", #1 \n"
|
||||
" bne .Lnrm2_kernel_S4 \n"
|
||||
|
||||
".Lnrm2_kernel_S1: \n"
|
||||
" ands "J", "N", #3 \n"
|
||||
" ble .Lnrm2_kernel_L999 \n"
|
||||
|
||||
".Lnrm2_kernel_S10: \n"
|
||||
" "KERNEL_F1" \n"
|
||||
" subs "J", "J", #1 \n"
|
||||
" bne .Lnrm2_kernel_S10 \n"
|
||||
|
||||
".Lnrm2_kernel_L999: \n"
|
||||
" "KERNEL_FINALIZE" \n"
|
||||
" str "SSQ", [%[RET_]] \n"
|
||||
|
||||
:
|
||||
: [RET_] "r" (&ret), //%0
|
||||
[N_] "r" (n), //%1
|
||||
[X_] "r" (x), //%2
|
||||
[INCX_] "r" (inc_x) //%3
|
||||
: "cc",
|
||||
"memory",
|
||||
"x0", "x1", "x2", "x3", "x4", "x5",
|
||||
"d0", "d1", "d2", "d3", "d4", "d5", "d6", "d7"
|
||||
);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
#if defined(SMP)
|
||||
static int nrm2_thread_function(BLASLONG n, BLASLONG dummy0,
|
||||
BLASLONG dummy1, FLOAT dummy2, FLOAT *x, BLASLONG inc_x, FLOAT *dummy3,
|
||||
BLASLONG dummy4, FLOAT *result, BLASLONG dummy5)
|
||||
{
|
||||
*(double *)result = nrm2_compute(n, x, inc_x);
|
||||
|
||||
return 0;
|
||||
}
|
||||
#endif
|
||||
|
||||
FLOAT CNAME(BLASLONG n, FLOAT *x, BLASLONG inc_x)
|
||||
{
|
||||
#if defined(SMP)
|
||||
int nthreads;
|
||||
FLOAT dummy_alpha[2];
|
||||
#endif
|
||||
FLOAT nrm2 = 0.0;
|
||||
|
||||
if (n <= 0 || inc_x <= 0) return 0.0;
|
||||
|
||||
#if defined(SMP)
|
||||
nthreads = num_cpu_avail(1);
|
||||
|
||||
if (n <= 10000)
|
||||
nthreads = 1;
|
||||
|
||||
if (nthreads == 1) {
|
||||
nrm2 = nrm2_compute(n, x, inc_x);
|
||||
} else {
|
||||
int mode, i;
|
||||
char result[MAX_CPU_NUMBER * sizeof(double) * 2];
|
||||
double *ptr;
|
||||
|
||||
#if !defined(COMPLEX)
|
||||
mode = BLAS_DOUBLE | BLAS_REAL;
|
||||
#else
|
||||
mode = BLAS_DOUBLE | BLAS_COMPLEX;
|
||||
#endif
|
||||
|
||||
blas_level1_thread_with_return_value(mode, n, 0, 0, &dummy_alpha,
|
||||
x, inc_x, NULL, 0, result, 0,
|
||||
( void *)nrm2_thread_function, nthreads);
|
||||
|
||||
ptr = (double *)result;
|
||||
for (i = 0; i < nthreads; i++) {
|
||||
nrm2 = nrm2 + (*ptr);
|
||||
ptr = (double *)(((char *)ptr) + sizeof(double) * 2);
|
||||
}
|
||||
}
|
||||
#else
|
||||
nrm2 = nrm2_compute(n, x, inc_x);
|
||||
#endif
|
||||
nrm2 = sqrt(nrm2);
|
||||
|
||||
return nrm2;
|
||||
}
|
||||
|
|
@ -40,7 +40,7 @@ extern int blas_level1_thread_with_return_value(int mode, BLASLONG m, BLASLONG n
|
|||
#define N "x0" /* vector length */
|
||||
#define X "x1" /* X vector address */
|
||||
#define INC_X "x2" /* X stride */
|
||||
#define I "x5" /* loop variable */
|
||||
#define J "x5" /* loop variable */
|
||||
|
||||
#define TMPF "s16"
|
||||
#define TMPFD "d17"
|
||||
|
|
@ -128,7 +128,7 @@ extern int blas_level1_thread_with_return_value(int mode, BLASLONG m, BLASLONG n
|
|||
#define N "x0" /* vector length */
|
||||
#define X "x1" /* X vector address */
|
||||
#define INC_X "x2" /* X stride */
|
||||
#define I "x5" /* loop variable */
|
||||
#define J "x5" /* loop variable */
|
||||
|
||||
#define TMPF "d16"
|
||||
#define SSQD "d0"
|
||||
|
|
@ -234,31 +234,31 @@ static double nrm2_compute(BLASLONG n, FLOAT *x, BLASLONG inc_x)
|
|||
" bne .Lnrm2_kernel_S_BEGIN \n"
|
||||
|
||||
".Lnrm2_kernel_F_BEGIN: \n"
|
||||
" asr "I", "N", #"N_DIV_SHIFT" \n"
|
||||
" cmp "I", xzr \n"
|
||||
" asr "J", "N", #"N_DIV_SHIFT" \n"
|
||||
" cmp "J", xzr \n"
|
||||
" beq .Lnrm2_kernel_S_BEGIN \n"
|
||||
|
||||
" .align 5 \n"
|
||||
".Lnrm2_kernel_F: \n"
|
||||
" "KERNEL_F" \n"
|
||||
" subs "I", "I", #1 \n"
|
||||
" subs "J", "J", #1 \n"
|
||||
" bne .Lnrm2_kernel_F \n"
|
||||
" "KERNEL_F_FINALIZE" \n"
|
||||
|
||||
".Lnrm2_kernel_F1: \n"
|
||||
" ands "I", "N", #"N_REM_MASK" \n"
|
||||
" ands "J", "N", #"N_REM_MASK" \n"
|
||||
" ble .Lnrm2_kernel_L999 \n"
|
||||
|
||||
".Lnrm2_kernel_F10: \n"
|
||||
" "KERNEL_F1" \n"
|
||||
" subs "I", "I", #1 \n"
|
||||
" subs "J", "J", #1 \n"
|
||||
" bne .Lnrm2_kernel_F10 \n"
|
||||
" b .Lnrm2_kernel_L999 \n"
|
||||
|
||||
".Lnrm2_kernel_S_BEGIN: \n"
|
||||
" lsl "INC_X", "INC_X", #"INC_SHIFT" \n"
|
||||
" asr "I", "N", #2 \n"
|
||||
" cmp "I", xzr \n"
|
||||
" asr "J", "N", #2 \n"
|
||||
" cmp "J", xzr \n"
|
||||
" ble .Lnrm2_kernel_S1 \n"
|
||||
|
||||
".Lnrm2_kernel_S4: \n"
|
||||
|
|
@ -266,16 +266,16 @@ static double nrm2_compute(BLASLONG n, FLOAT *x, BLASLONG inc_x)
|
|||
" "KERNEL_S1" \n"
|
||||
" "KERNEL_S1" \n"
|
||||
" "KERNEL_S1" \n"
|
||||
" subs "I", "I", #1 \n"
|
||||
" subs "J", "J", #1 \n"
|
||||
" bne .Lnrm2_kernel_S4 \n"
|
||||
|
||||
".Lnrm2_kernel_S1: \n"
|
||||
" ands "I", "N", #3 \n"
|
||||
" ands "J", "N", #3 \n"
|
||||
" ble .Lnrm2_kernel_L999 \n"
|
||||
|
||||
".Lnrm2_kernel_S10: \n"
|
||||
" "KERNEL_S1" \n"
|
||||
" subs "I", "I", #1 \n"
|
||||
" subs "J", "J", #1 \n"
|
||||
" bne .Lnrm2_kernel_S10 \n"
|
||||
|
||||
".Lnrm2_kernel_L999: \n"
|
||||
|
|
|
|||
Loading…
Reference in New Issue