/*
-Copyright 2010-2011, D. E. Shaw Research.
-All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions are
-met:
-
-* Redistributions of source code must retain the above copyright
- notice, this list of conditions, and the following disclaimer.
-
-* 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.
-
-* Neither the name of D. E. Shaw Research 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 COPYRIGHT
-OWNER 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.
-*/
-/**
-
-@page porting Preprocessor symbols for porting Random123 to different platforms.
-
-The Random123 library is portable across C, C++, CUDA, OpenCL environments,
-and multiple operating systems (Linux, Windows 7, Mac OS X, FreeBSD, Solaris).
-This level of portability requires the abstraction of some features
-and idioms that are either not standardized (e.g., asm statments), or for which
-different vendors have their own standards (e.g., SSE intrinsics) or for
-which vendors simply refuse to conform to well-established standards (e.g., <inttypes.h>).
-
-Random123/features/compilerfeatures.h
-conditionally includes a compiler-or-OS-specific Random123/featires/XXXfeatures.h file which
-defines appropriate values for the preprocessor symbols which can be used with
-a specific compiler or OS. Those symbols will then
-be used by other header files and source files in the Random123
-library (and may be used by applications) to control what actually
-gets presented to the compiler.
-
-Most of the symbols are boolean valued. In general, they will
-\b always be defined with value either 1 or 0, so do
-\b NOT use \#ifdef. Use \#if R123_USE_SOMETHING instead.
-
-Library users can override any value by defining the pp-symbol with a compiler option,
-e.g.,
-
- cc -DR123_USE_MULHILO64_C99
-
-will use a strictly c99 version of the full-width 64x64->128-bit multiplication
-function, even if it would be disabled by default.
-
-All boolean-valued pre-processor symbols in Random123/features/compilerfeatures.h start with the prefix R123_USE_
-@verbatim
- AES_NI
- AES_OPENSSL
- SSE4_2
- SSE4_1
- SSE
-
- STD_RANDOM
-
- GNU_UINT128
- ASM_GNU
- ASM_MSASM
-
- CPUID_MSVC
-
- CXX11_RANDOM
- CXX11_TYPE_TRAITS
- CXX11_STATIC_ASSERT
- CXX11_CONSTEXPR
- CXX11_UNRESTRICTED_UNIONS
- CXX11_EXPLICIT_CONVERSIONS
- CXX11_LONG_LONG
- CXX11
-
- X86INTRIN_H
- IA32INTRIN_H
- XMMINTRIN_H
- EMMINTRIN_H
- SMMINTRIN_H
- WMMINTRIN_H
- INTRIN_H
-
- MULHILO32_ASM
- MULHILO64_ASM
- MULHILO64_MSVC_INTRIN
- MULHILO64_CUDA_INTRIN
- MULHILO64_OPENCL_INTRIN
- MULHILO64_C99
-
- U01_DOUBLE
-
-@endverbatim
-Most have obvious meanings. Some non-obvious ones:
-
-AES_NI and AES_OPENSSL are not mutually exclusive. You can have one,
-both or neither.
-
-GNU_UINT128 says that it's safe to use __uint128_t, but it
-does not require its use. In particular, it should be
-used in mulhilo<uint64_t> only if MULHILO64_ASM is unset.
-
-If the XXXINTRIN_H macros are true, then one should
-@code
-#include <xxxintrin.h>
-@endcode
-to gain accesss to compiler intrinsics.
-
-The CXX11_SOME_FEATURE macros allow the code to use specific
-features of the C++11 language and library. The catchall
-In the absence of a specific CXX11_SOME_FEATURE, the feature
-is controlled by the catch-all R123_USE_CXX11 macro.
-
-U01_DOUBLE defaults on, and can be turned off (set to 0)
-if one does not want the utility functions that convert to double
-(i.e. u01_*_53()), e.g. on OpenCL without the cl_khr_fp64 extension.
-
-There are a number of invariants that are always true. Application code may
-choose to rely on these:
-
-<ul>
-<li>ASM_GNU and ASM_MASM are mutually exclusive
-<li>The "higher" SSE values imply the lower ones.
-</ul>
-
-There are also non-boolean valued symbols:
-
-<ul>
-<li>R123_STATIC_INLINE -
- According to both C99 and GNU99, the 'static inline' declaration allows
- the compiler to not emit code if the function is not used.
- Note that the semantics of 'inline', 'static' and 'extern' in
- gcc have changed over time and are subject to modification by
- command line options, e.g., -std=gnu89, -fgnu-inline.
- Nevertheless, it appears that the meaning of 'static inline'
- has not changed over time and (with a little luck) the use of 'static inline'
- here will be portable between versions of gcc and to other C99
- compilers.
- See: http://gcc.gnu.org/onlinedocs/gcc/Inline.html
- http://www.greenend.org.uk/rjk/2003/03/inline.html
-
-<li>R123_FORCE_INLINE(decl) -
- which expands to 'decl', adorned with the compiler-specific
- embellishments to strongly encourage that the declared function be
- inlined. If there is no such compiler-specific magic, it should
- expand to decl, unadorned.
-
-<li>R123_CUDA_DEVICE - which expands to __device__ (or something else with
- sufficiently similar semantics) when CUDA is in use, and expands
- to nothing in other cases.
-
-<li>R123_ASSERT(x) - which expands to assert(x), or maybe to nothing at
- all if we're in an environment so feature-poor that you can't even
- call assert (I'm looking at you, CUDA and OpenCL), or even include
- assert.h safely (OpenCL).
-
-<li>R123_STATIC_ASSERT(expr,msg) - which expands to
- static_assert(expr,msg), or to an expression that
- will raise a compile-time exception if expr is not true.
-
-<li>R123_ULONG_LONG - which expands to a declaration of the longest available
- unsigned integer.
-
-<li>R123_64BIT(x) - expands to something equivalent to
- UINT64_C(x) from <stdint.h>, even in environments where <stdint.h>
- is not available, e.g., MSVC and OpenCL.
-
-<li>R123_BUILTIN_EXPECT(expr,likely_value) - expands to something with
- the semantics of gcc's __builtin_expect(expr,likely_value). If
- the environment has nothing like __builtin_expect, it should expand
- to just expr.
-</ul>
-
-
-\cond HIDDEN_FROM_DOXYGEN
-*/
-
-/*
-N.B. When something is added to the list of features, it should be
-added to each of the *features.h files, AND to examples/ut_features.cpp.
-*/
-
-/* N.B. most other compilers (icc, nvcc, open64, llvm) will also define __GNUC__, so order matters. */
-#if defined(__OPENCL_VERSION__) && __OPENCL_VERSION__ > 0
-#include "openclfeatures.h"
-#elif defined(__CUDACC__)
-#include "nvccfeatures.h"
-#elif defined(__ICC)
-#include "iccfeatures.h"
-#elif defined(__xlC__)
-#include "xlcfeatures.h"
-#elif defined(__SUNPRO_C) || defined(__SUNPRO_CC)
-#include "sunprofeatures.h"
-#elif defined(__OPEN64__)
-#include "open64features.h"
-#elif defined(__clang__)
-#include "clangfeatures.h"
-#elif defined(__GNUC__)
-#include "gccfeatures.h"
-#elif defined(__PGI)
-#include "pgccfeatures.h"
-#elif defined(_MSC_FULL_VER)
-#include "msvcfeatures.h"
-#else
-#error "Can't identify compiler. You'll need to add a new xxfeatures.hpp"
-{ /* maybe an unbalanced brace will terminate the compilation */
-#endif
-
-#ifndef R123_USE_CXX11
-#define R123_USE_CXX11 (__cplusplus >= 201103L)
-#endif
-
-#ifndef R123_USE_CXX11_UNRESTRICTED_UNIONS
-#define R123_USE_CXX11_UNRESTRICTED_UNIONS R123_USE_CXX11
-#endif
-
-#ifndef R123_USE_CXX11_STATIC_ASSERT
-#define R123_USE_CXX11_STATIC_ASSERT R123_USE_CXX11
-#endif
-
-#ifndef R123_USE_CXX11_CONSTEXPR
-#define R123_USE_CXX11_CONSTEXPR R123_USE_CXX11
-#endif
-
-#ifndef R123_USE_CXX11_EXPLICIT_CONVERSIONS
-#define R123_USE_CXX11_EXPLICIT_CONVERSIONS R123_USE_CXX11
-#endif
-
-#ifndef R123_USE_CXX11_RANDOM
-#define R123_USE_CXX11_RANDOM R123_USE_CXX11
-#endif
-
-#ifndef R123_USE_CXX11_TYPE_TRAITS
-#define R123_USE_CXX11_TYPE_TRAITS R123_USE_CXX11
-#endif
-
-#ifndef R123_USE_CXX11_LONG_LONG
-#define R123_USE_CXX11_LONG_LONG R123_USE_CXX11
-#endif
-
-#ifndef R123_USE_MULHILO64_C99
-#define R123_USE_MULHILO64_C99 0
-#endif
-
-#ifndef R123_USE_MULHILO64_MULHI_INTRIN
-#define R123_USE_MULHILO64_MULHI_INTRIN 0
-#endif
-
-#ifndef R123_USE_MULHILO32_MULHI_INTRIN
-#define R123_USE_MULHILO32_MULHI_INTRIN 0
-#endif
-
-#ifndef R123_STATIC_ASSERT
-#if R123_USE_CXX11_STATIC_ASSERT
-#define R123_STATIC_ASSERT(expr, msg) static_assert(expr, msg)
-#else
- /* if msg always_looked_like_this, we could paste it into the name. Worth it? */
-#define R123_STATIC_ASSERT(expr, msg) typedef char static_assertion[(!!(expr))*2-1]
-#endif
-#endif
-
-#ifndef R123_CONSTEXPR
-#if R123_USE_CXX11_CONSTEXPR
-#define R123_CONSTEXPR constexpr
-#else
-#define R123_CONSTEXPR
-#endif
-#endif
-
-#ifndef R123_USE_PHILOX_64BIT
-#define R123_USE_PHILOX_64BIT (R123_USE_MULHILO64_ASM || R123_USE_MULHILO64_MSVC_INTRIN || R123_USE_MULHILO64_CUDA_INTRIN || R123_USE_GNU_UINT128 || R123_USE_MULHILO64_C99 || R123_USE_MULHILO64_OPENCL_INTRIN || R123_USE_MULHILO64_MULHI_INTRIN)
-#endif
-
-#ifndef R123_ULONG_LONG
-#if defined(__cplusplus) && !R123_USE_CXX11_LONG_LONG
-/* C++98 doesn't have long long. It doesn't have uint64_t either, but
- we will have typedef'ed uint64_t to something in the xxxfeatures.h.
- With luck, it won't elicit complaints from -pedantic. Cross your
- fingers... */
-#define R123_ULONG_LONG uint64_t
-#else
-#define R123_ULONG_LONG unsigned long long
-#endif
-#endif
-
-/* UINT64_C should have been #defined by XXXfeatures.h, either by
- #include <stdint.h> or through compiler-dependent hacks */
-#ifndef R123_64BIT
-#define R123_64BIT(x) UINT64_C(x)
-#endif
-
-#ifndef R123_THROW
-#define R123_THROW(x) throw (x)
-#endif
-
-/*
- * Windows.h (and perhaps other "well-meaning" code define min and
- * max, so there's a high chance that our definition of min, max
- * methods or use of std::numeric_limits min and max will cause
- * complaints in any program that happened to include Windows.h or
- * suchlike first. We use the null macro below in our own header
- * files definition or use of min, max to defensively preclude
- * this problem. It may not be enough; one might need to #define
- * NOMINMAX before including Windows.h or compile with -DNOMINMAX.
+ * This file is part of the GROMACS molecular simulation package.
+ *
+ * Copyright (c) 2014, by the GROMACS development team, led by
+ * Mark Abraham, David van der Spoel, Berk Hess, and Erik Lindahl,
+ * and including many others, as listed in the AUTHORS file in the
+ * top-level source directory and at http://www.gromacs.org.
+ *
+ * GROMACS is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 2.1
+ * of the License, or (at your option) any later version.
+ *
+ * GROMACS is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with GROMACS; if not, see
+ * http://www.gnu.org/licenses, or write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * If you want to redistribute modifications to GROMACS, please
+ * consider that scientific software is very special. Version
+ * control is crucial - bugs must be traceable. We will be happy to
+ * consider code for inclusion in the official distribution, but
+ * derived work must not be called official GROMACS. Details are found
+ * in the README & COPYING files - if they are missing, get the
+ * official version at http://www.gromacs.org.
+ *
+ * To help us fund GROMACS development, we humbly ask that you cite
+ * the research papers on the package. Check out http://www.gromacs.org.
*/
-#define R123_NO_MACRO_SUBST
-/** \endcond */
+#include <assert.h>
+
+#include "gromacs/utility/basedefinitions.h"
+
+/* We only use the C interface of ThreeFry and r123array2x64. This file is a
+ replacment for the original from the Random123 distribution. It sets all
+ defines (they all start with R123_), which are used by those parts of
+ Random123 being used. Instead of determining values based on the Compiler
+ (Name, Version, ..) we set values based on our assumptions in Gromacs, and
+ the defines used in Gromacs */
+
+/* Random123 isn't used from Cuda thus this can always be empty */
+#define R123_CUDA_DEVICE
+/* For "inline" use the Gromacs own gmx_inline */
+#define R123_STATIC_INLINE static gmx_inline
+/* force_inline isn't used in Gromacs - if it matters for a compiler it probably
+ not only matters here and should be defined in basedefinitions.h */
+#define R123_FORCE_INLINE(decl) decl
+/* We assume in Gromacs that assert is available outside of Cuda */
+#define R123_ASSERT assert
+/* Not used (only used by C++ interface of ThreeFry) */
+#define R123_STATIC_ASSERT(expr, msg)
biod.pnpi.spb.ru / alexxy / gromacs.git / blobdiff