1 #ifndef PETSCCUPMDEVICE_HPP 2 #define PETSCCUPMDEVICE_HPP 3 4 #if defined(__cplusplus) 5 #include <petsc/private/cupminterface.hpp> 6 #include <petsc/private/cpp/memory.hpp> 7 #include <petsc/private/cpp/array.hpp> 8 9 #include "../impldevicebase.hpp" /* I "petscdevice.h" */ 10 11 namespace Petsc 12 { 13 14 namespace device 15 { 16 17 namespace cupm 18 { 19 20 #if defined(PETSC_CUPM_DEVICE_NONE) 21 #error redefinition of PETSC_CUPM_DEVICE_NONE 22 #endif 23 24 #define PETSC_CUPM_DEVICE_NONE -3 25 26 template <DeviceType T> 27 class Device : public ::Petsc::device::impl::DeviceBase<Device<T>>, impl::Interface<T> { 28 public: 29 PETSC_DEVICE_IMPL_BASE_CLASS_HEADER(base_type, Device<T>); 30 PETSC_CUPM_INHERIT_INTERFACE_TYPEDEFS_USING(cupmInterface_t, T); 31 32 static PetscErrorCode initialize(MPI_Comm, PetscInt *, PetscBool *, PetscDeviceInitType *) noexcept; 33 34 private: 35 // opaque class representing a single device 36 class DeviceInternal; 37 38 // all known devices 39 using devices_type = std::array<std::unique_ptr<DeviceInternal>, PETSC_DEVICE_MAX_DEVICES>; 40 static devices_type devices_; 41 42 // this ranks default device, if < 0 then devices are specifically disabled 43 static int defaultDevice_; 44 45 // have we tried looking for devices 46 static bool initialized_; 47 48 // clean-up 49 static PetscErrorCode finalize_() noexcept; 50 51 PETSC_NODISCARD static constexpr PetscDeviceType PETSC_DEVICE_IMPL_() noexcept { return PETSC_DEVICE_CUPM(); } 52 53 PetscErrorCode init_device_id_(PetscInt *) const noexcept; 54 static PetscErrorCode configure_device_(PetscDevice) noexcept; 55 static PetscErrorCode view_device_(PetscDevice, PetscViewer) noexcept; 56 static PetscErrorCode get_attribute_(PetscInt, PetscDeviceAttribute, void *) noexcept; 57 }; 58 59 // define static variables 60 template <DeviceType T> 61 typename Device<T>::devices_type Device<T>::devices_ = {}; 62 63 template <DeviceType T> 64 int Device<T>::defaultDevice_ = PETSC_CUPM_DEVICE_NONE; 65 66 template <DeviceType T> 67 bool Device<T>::initialized_ = false; 68 69 } // namespace cupm 70 71 } // namespace device 72 73 } // namespace Petsc 74 75 #endif // __cplusplus 76 77 #endif /* PETSCCUPMDEVICE_HPP */ 78