src/gromacs/hardware/architecture.h

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  35 /*! \internal \file
  36  * \brief
  37  * Declares and defines architecture booleans to minimize preprocessed code
  38  *
  39  * \ingroup module_hardware
  40  */
  41 #ifndef GMX_ARCHITECTURE_H
  42 #define GMX_ARCHITECTURE_H
  43
  44 namespace gmx
  45 {
  46
  47 //! Enum for GROMACS CPU hardware detection support
  48 enum class Architecture
  49 {
  50     Unknown, //! Not one of the cases below
  51     X86,     //! X86
  52     Arm,     //! ARM
  53     PowerPC  //! IBM PowerPC
  54 };
  55
  56 //! Whether the compilation is targeting 32-bit x86.
  57 # if (defined __i386__ || defined __i386 || defined _X86_ || defined _M_IX86)
  58 #define GMX_IS_X86_32 1
  59 #else
  60 #define GMX_IS_X86_32 0
  61 #endif
  62
  63 //! Whether the compilation is targeting 64-bit x86.
  64 #if (defined __x86_64__ || defined __x86_64 || defined __amd64__ || defined __amd64 || defined _M_X64 || defined _M_AMD64)
  65 #define GMX_IS_X86_64 1
  66 #else
  67 #define GMX_IS_X86_64 0
  68 #endif
  69
  70 //! Constant that tells what the architecture is
  71 static constexpr Architecture c_architecture =
  72 #if GMX_IS_X86_32 || GMX_IS_X86_64
  73     Architecture::X86;
  74 #elif defined __arm__ || defined __arm || defined _M_ARM || defined __aarch64_
  75     Architecture::Arm;
  76 #elif defined __powerpc__ || defined __ppc__ || defined __PPC__
  77     Architecture::PowerPC;
  78 #else
  79     Architecture::Unknown;
  80 #endif
  81
  82 }      // namespace gmx
  83
  84 #endif // GMX_ARCHITECTURE_H