src/gromacs/hardware/gpu_hw_info.h

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  36 #ifndef GMX_HARDWARE_GPU_HW_INFO_H
  37 #define GMX_HARDWARE_GPU_HW_INFO_H
  38
  39 #include "gromacs/utility/basedefinitions.h"
  40
  41 struct DeviceInformation;
  42
  43 /*! \brief Possible results of the GPU detection/check.
  44  *
  45  * The egpuInsane value means that during the sanity checks an error
  46  * occurred that indicates malfunctioning of the device, driver, or
  47  * incompatible driver/runtime.
  48  * eGpuUnavailable indicates that CUDA devices are busy or unavailable
  49  * typically due to use of cudaComputeModeExclusive, cudaComputeModeProhibited modes.
  50  */
  51 typedef enum
  52 {
  53     egpuCompatible = 0,
  54     egpuNonexistent,
  55     egpuIncompatible,
  56     egpuIncompatibleClusterSize,
  57     egpuInsane,
  58     egpuUnavailable,
  59     egpuNR
  60 } e_gpu_detect_res_t;
  61
  62 /*! \brief Names of the GPU detection/check results
  63  *
  64  * \todo Make a proper class enumeration with helper string */
  65 extern const char* const gpu_detect_res_str[egpuNR];
  66
  67 /*! \brief Information about GPU devices on this physical node.
  68  *
  69  * Includes either CUDA or OpenCL devices.  The gmx_hardware_detect
  70  * module initializes it.
  71  *
  72  * \todo Use a std::vector */
  73 struct gmx_gpu_info_t
  74 {
  75     //! Did we attempt GPU detection?
  76     gmx_bool bDetectGPUs;
  77     //! Total number of GPU devices detected on this physical node
  78     int n_dev;
  79     //! Information about each GPU device detected on this physical node
  80     DeviceInformation* deviceInfo;
  81     //! Number of GPU devices detected on this physical node that are compatible.
  82     int n_dev_compatible;
  83 };
  84
  85 #endif