143 lines
4.4 KiB
C
143 lines
4.4 KiB
C
/***************************************************************************
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Copyright (c) 2014, 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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#if defined (COOPERLAKE)
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#include "sbgemv_t_microk_cooperlake.c"
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#endif
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#define ALIGN64_ALLOC(alloc_size, TYPE, ptr_align, ptr) \
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ptr = (TYPE *) malloc(sizeof(TYPE)*alloc_size + 63); \
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ptr_align = ((int)(((uintptr_t)ptr & (uintptr_t)0x3F))!=0) ? (TYPE *)((char *)ptr + (64 - (int)((uintptr_t)ptr & (uintptr_t)0x3F))) : ptr
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#define ALIGN64_FREE(ptr) \
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free(ptr)
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#ifndef HAVE_SBGEMV_T_ACCL_KERNEL
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static void sbgemv_kernel_t(BLASLONG m, BLASLONG n, float alpha, bfloat16 *a, BLASLONG lda, bfloat16 *x, float beta, float *y)
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{
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BLASLONG offset_lda, offset_n;
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float accum = 0.0;
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bfloat16 * a_bf16 = malloc(sizeof(bfloat16)*m*n);
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float * a_fp32 = malloc(sizeof(float)*m*n);
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float * x_fp32 = malloc(sizeof(float)*n);
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for (BLASLONG i=0; i<m; i++) {
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offset_lda = lda * i;
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offset_n = n * i;
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for (BLASLONG j=0; j<n; j++) {
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a_bf16[offset_n + j] = a[offset_lda + j];
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}
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}
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SBF16TOS_K(n, x, 1, x_fp32, 1);
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SBF16TOS_K(m*n, a_bf16, 1, a_fp32, 1);
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for (BLASLONG i=0; i<m; i++) {
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offset_n = n * i;
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accum = 0.0;
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for (BLASLONG j=0; j<n; j++) {
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accum += a_fp32[offset_n + j] * x_fp32[j];
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}
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if (beta == ZERO) {
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y[i] = alpha * accum;
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} else {
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y[i] = alpha * accum + beta * y[i];
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}
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}
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free(a_bf16);
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free(a_fp32);
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free(x_fp32);
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}
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#endif
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static void bf16_compress_vector(BLASLONG n, bfloat16 * src, bfloat16 * target, BLASLONG inc)
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{
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for(BLASLONG i=0; i<n; i++) {
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target[i] = src[i*inc];
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}
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}
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static void fp32_compress_vector(BLASLONG n, float * src, float * target, BLASLONG inc)
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{
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for(BLASLONG i=0; i<n; i++) {
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target[i] = src[i*inc];
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}
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}
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static void fp32_expand_vector(BLASLONG n, float * src, float * target, BLASLONG inc)
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{
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for(BLASLONG i=0; i<n; i++) {
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target[i*inc] = src[i];
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}
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}
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int CNAME(BLASLONG m, BLASLONG n, float alpha, bfloat16 *a, BLASLONG lda, bfloat16 *x, BLASLONG incx, float beta, float * y, BLASLONG incy)
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{
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if ( m < 1 || n < 1) return(0);
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bfloat16 * xbuffer_align = x;
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float * ybuffer_align = y;
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bfloat16 * xbuffer = NULL;
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float * ybuffer = NULL;
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// Switch m and n
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BLASLONG t = m;
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m = n;
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n = t;
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if (incx != 1) {
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ALIGN64_ALLOC(n, bfloat16, xbuffer_align, xbuffer);
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bf16_compress_vector(n, x, xbuffer_align, incx);
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}
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if (incy != 1) {
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ALIGN64_ALLOC(m, float, ybuffer_align, ybuffer);
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if (beta != ZERO) {
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fp32_compress_vector(m, y, ybuffer_align, incy);
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}
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}
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sbgemv_kernel_t(m, n, alpha, a, lda, xbuffer_align, beta, ybuffer_align);
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if (incy != 1) {
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fp32_expand_vector(m, ybuffer_align, y, incy);
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ALIGN64_FREE(ybuffer);
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}
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if (incx != 1) {
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ALIGN64_FREE(xbuffer);
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}
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return(0);
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}
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