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bdd46f9ee8
Details:
- Rewrote level-1v, -1f, and -3 reference kernels in terms of simplified
indexing annotated by the #pragma omp simd directive, which a compiler
can use to vectorize certain constant-bounded loops. (The new kernels
actually use _Pragma("omp simd") since the kernels are defined via
templatizing macros.) Modest speedup was observed in most cases using
gcc 5.4.0, which may improve with newer versions. Thanks to Devin
Matthews for suggesting this via issue #286 and #259.
- Updated default blocksizes defined in ref_kernels/bli_cntx_ref.c to
be 4x16, 4x8, 4x8, and 4x4 for single, double, scomplex and dcomplex,
respectively, with a default row preference for the gemm ukernel. Also
updated axpyf, dotxf, and dotxaxpyf fusing factors to 8, 6, and 4,
respectively, for all datatypes.
- Modified configure to verify that -fopenmp-simd is a valid compiler
option (via a new detect/omp_simd/omp_simd_detect.c file).
- Added a new header in which prefetch macros are defined according to
which compiler is detected (via macros such as __GNUC__). These
prefetch macros are not yet employed anywhere, though.
- Updated the year in copyrights of template license headers in
build/templates and removed AMD as a default copyright holder.
125 lines
3.8 KiB
C
125 lines
3.8 KiB
C
/*
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BLIS
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An object-based framework for developing high-performance BLAS-like
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libraries.
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Copyright (C) 2014, The University of Texas at Austin
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Copyright (C) 2018, Advanced Micro Devices, Inc.
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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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- 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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- Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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- Neither the name(s) of the copyright holder(s) nor the names of its
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contributors may be used to endorse or promote products derived
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from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef BLIS_SYSTEM_H
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#define BLIS_SYSTEM_H
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#include <stdio.h>
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#include <stdlib.h>
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#include <math.h>
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#include <string.h>
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#include <stdarg.h>
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#include <float.h>
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#include <errno.h>
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#include <ctype.h>
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// Determine the compiler (hopefully) and define conveniently named macros
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// accordingly.
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#if defined(__ICC) || defined(__INTEL_COMPILER)
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#define BLIS_ICC
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#elif defined(__clang__)
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#define BLIS_CLANG
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#elif defined(__GNUC__)
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#define BLIS_GCC
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#endif
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// Determine if we are on a 64-bit or 32-bit architecture.
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#if defined(_M_X64) || defined(__x86_64) || defined(__aarch64__) || \
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defined(_ARCH_PPC64)
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#define BLIS_ARCH_64
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#else
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#define BLIS_ARCH_32
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#endif
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// Determine the target operating system.
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#if defined(_WIN32) || defined(__CYGWIN__)
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#define BLIS_OS_WINDOWS 1
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#elif defined(__gnu_hurd__)
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#define BLIS_OS_GNU 1
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#elif defined(__APPLE__) || defined(__MACH__)
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#define BLIS_OS_OSX 1
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#elif defined(__ANDROID__)
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#define BLIS_OS_ANDROID 1
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#elif defined(__linux__)
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#define BLIS_OS_LINUX 1
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#elif defined(__bgq__)
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#define BLIS_OS_BGQ 1
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#elif defined(__bg__)
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#define BLIS_OS_BGP 1
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#elif defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) || \
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defined(__bsdi__) || defined(__DragonFly__)
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#define BLIS_OS_BSD 1
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#elif defined(EMSCRIPTEN)
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#define BLIS_OS_EMSCRIPTEN
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#else
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#error "Cannot determine operating system"
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#endif
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// A few changes that may be necessary in Windows environments.
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#if BLIS_OS_WINDOWS
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// Include Windows header file.
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#define WIN32_LEAN_AND_MEAN
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#define VC_EXTRALEAN
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#include <windows.h>
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#if !defined(__clang__) && !defined(__GNUC__)
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// Undefine attribute specifiers in Windows.
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#define __attribute__(x)
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// Undefine restrict.
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#define restrict
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#endif
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#endif
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// time.h provides clock_gettime().
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#if BLIS_OS_WINDOWS
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#include <time.h>
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#elif BLIS_OS_OSX
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#include <mach/mach_time.h>
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#else
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#include <sys/time.h>
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#include <time.h>
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#endif
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// POSIX threads are unconditionally required, regardless of whether
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// multithreading is enabled via pthreads or OpenMP (or disabled).
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// If pthreads is not available (Windows), then fake it.
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//#include "bli_pthread_wrap.h"
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#endif
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