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37 * \brief Defines the implementations of the device management that are common for CPU, CUDA and OpenCL.
39 * \author Artem Zhmurov <zhmurov@gmail.com>
41 * \ingroup module_hardware
47 #include "gromacs/hardware/device_information.h"
48 #include "gromacs/hardware/device_management.h"
49 #include "gromacs/hardware/gpu_hw_info.h"
50 #include "gromacs/utility/smalloc.h"
52 bool canPerformGpuDetection()
54 if (c_binarySupportsGpus && getenv("GMX_DISABLE_GPU_DETECTION") == nullptr)
56 return isGpuDetectionFunctional(nullptr);
64 std::vector<int> getCompatibleGpus(const gmx_gpu_info_t& gpu_info)
66 // Possible minor over-allocation here, but not important for anything
67 std::vector<int> compatibleGpus;
68 compatibleGpus.reserve(gpu_info.n_dev);
69 for (int i = 0; i < gpu_info.n_dev; i++)
71 assert(gpu_info.deviceInfo);
72 if (gpu_info_get_stat(gpu_info, i) == DeviceStatus::Compatible)
74 compatibleGpus.push_back(i);
77 return compatibleGpus;
80 const char* getGpuCompatibilityDescription(const gmx_gpu_info_t& gpu_info, int index)
82 return (index >= gpu_info.n_dev ? c_deviceStateString[DeviceStatus::Nonexistent]
83 : c_deviceStateString[gpu_info_get_stat(gpu_info, index)]);
86 void free_gpu_info(const gmx_gpu_info_t* gpu_info)
88 sfree(static_cast<void*>(gpu_info->deviceInfo)); // circumvent is_pod check in sfree