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1. Add a new API -- sbgemv to support bfloat16 based gemv 2. Implement a generic kernel for sbgemv 3. Implement an avx512-bf16 based kernel for sbgemv Signed-off-by: Chen, Guobing <[email protected]>
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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. */ | ||
| /*********************************************************************/ | ||
|
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| #include <stdio.h> | ||
| #include <stdlib.h> | ||
| #include "common.h" | ||
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| #ifndef TRANSA | ||
| #define SBGEMV SBGEMV_N | ||
| #else | ||
| #define SBGEMV SBGEMV_T | ||
| #endif | ||
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| static int sbgemv_kernel(blas_arg_t *args, BLASLONG *range_m, BLASLONG *range_n, FLOAT *dummy1, FLOAT *dummy2, BLASLONG dummy3){ | ||
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| bfloat16 *a, *x; | ||
| float *y; | ||
| BLASLONG lda, incx, incy; | ||
| BLASLONG m_from, m_to, n_from, n_to; | ||
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| a = (bfloat16 *)args->a; | ||
| x = (bfloat16 *)args->b; | ||
| y = (float *)args->c; | ||
|
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| lda = args->lda; | ||
| incx = args->ldb; | ||
| incy = args->ldc; | ||
|
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| #ifndef TRANSA // N | ||
| m_from = *(range_m + 0); | ||
| m_to = *(range_m + 1); | ||
| n_from = 0; | ||
| n_to = args -> n; | ||
| a += m_from; | ||
| y += m_from * incy; | ||
| #else // T | ||
| m_from = 0; | ||
| m_to = args->m; | ||
| n_from = *(range_n + 0); | ||
| n_to = *(range_n + 1); | ||
| a += n_from * lda; | ||
| y += n_from * incy; | ||
| #endif | ||
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| SBGEMV(m_to - m_from, n_to - n_from, *((FLOAT *)(args->alpha)), a, lda, x, incx, *((FLOAT *)(args->beta)), y, incy); | ||
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| return 0; | ||
| } | ||
|
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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, int threads) | ||
| { | ||
| blas_arg_t args; | ||
| blas_queue_t queue[MAX_CPU_NUMBER]; | ||
| BLASLONG range[MAX_CPU_NUMBER + 1]; | ||
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| #ifndef TRANSA | ||
| BLASLONG width_for_split = m; | ||
| #else | ||
| BLASLONG width_for_split = n; | ||
| #endif | ||
|
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| BLASLONG BLOCK_WIDTH = width_for_split/threads; | ||
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| int mode = BLAS_BFLOAT16 | BLAS_REAL; | ||
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| args.m = m; | ||
| args.n = n; | ||
| args.a = (void *)a; | ||
| args.b = (void *)x; | ||
| args.c = (void *)y; | ||
| args.lda = lda; | ||
| args.ldb = incx; | ||
| args.ldc = incy; | ||
| args.alpha = (void *)α | ||
| args.beta = (void *)β | ||
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| range[0] = 0; | ||
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| int thread_idx; | ||
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| for (thread_idx=0; thread_idx<threads; thread_idx++) { | ||
| if (thread_idx != threads-1) { | ||
| range[thread_idx + 1] = range[thread_idx] + BLOCK_WIDTH; | ||
| } else { | ||
| range[thread_idx + 1] = range[thread_idx] + width_for_split; | ||
| } | ||
|
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| queue[thread_idx].mode = mode; | ||
| queue[thread_idx].routine = sbgemv_kernel; | ||
| queue[thread_idx].args = &args; | ||
| #ifndef TRANSA | ||
| queue[thread_idx].range_m = &range[thread_idx]; | ||
| queue[thread_idx].range_n = NULL; | ||
| #else | ||
| queue[thread_idx].range_m = NULL; | ||
| queue[thread_idx].range_n = &range[thread_idx]; | ||
| #endif | ||
| queue[thread_idx].sa = NULL; | ||
| queue[thread_idx].sb = NULL; | ||
| queue[thread_idx].next = &queue[thread_idx + 1]; | ||
|
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| width_for_split -= BLOCK_WIDTH; | ||
| } | ||
|
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| if (thread_idx) { | ||
| queue[0].sa = NULL; | ||
| queue[0].sb = NULL; | ||
| queue[thread_idx - 1].next = NULL; | ||
|
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| exec_blas(thread_idx, queue); | ||
| } | ||
|
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| return 0; | ||
| } |
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