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https://github.com/OpenMathLib/OpenBLAS
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e105411460
- Sets up all the various entrypoints for `bgemv` - Adds `bscal` for use in the `bgemv` interface - Adds test cases for comparing `sgemv` and `bgemv` - Adds generic kernels for `bgemv_n` and `bgemv_t` which are accurate enough to pass above tests
61 lines
2.3 KiB
C
61 lines
2.3 KiB
C
/***************************************************************************
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Copyright (c) 2013, 2025 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 "bf16_macros.h"
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int CNAME(BLASLONG m, BLASLONG n, FLOAT alpha, IFLOAT *a, BLASLONG lda, IFLOAT *x, BLASLONG inc_x, FLOAT beta, FLOAT *y, BLASLONG inc_y)
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{
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BLASLONG i;
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BLASLONG ix, iy;
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BLASLONG j;
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FLOAT *a_ptr;
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#ifdef BGEMM
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float temp;
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#else
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FLOAT temp;
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#endif
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iy = 0;
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a_ptr = a;
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for (j = 0; j < n; j++)
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{
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temp = 0.0;
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ix = 0;
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for (i = 0; i < m; i++)
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{
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temp += BF16TOF32(a_ptr[i]) * BF16TOF32(x[ix]);
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ix += inc_x;
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}
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y[iy] += F32TOBF16(ALPHA * temp);
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iy += inc_y;
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a_ptr += lda;
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}
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return (0);
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}
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