include/types/hw_info.h

   1 /*
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  35
  36 #ifndef HWINFO_H
  37 #define HWINFO_H
  38
  39 #include "simple.h"
  40 #include "nbnxn_cuda_types_ext.h"
  41 #include "../gmx_cpuid.h"
  42
  43 #ifdef __cplusplus
  44 extern "C" {
  45 #endif
  46 #if 0
  47 } /* fixes auto-indentation problems */
  48 #endif
  49
  50 /* Possible results of the GPU detection/check.
  51  *
  52  * The egpuInsane value means that during the sanity checks an error
  53  * occurred that indicates malfunctioning of the device, driver, or
  54  * incompatible driver/runtime. */
  55 typedef enum
  56 {
  57     egpuCompatible = 0,  egpuNonexistent,  egpuIncompatible, egpuInsane
  58 } e_gpu_detect_res_t;
  59
  60 /* Textual names of the GPU detection/check results (see e_gpu_detect_res_t). */
  61 static const char * const gpu_detect_res_str[] =
  62 {
  63     "compatible", "inexistent", "incompatible", "insane"
  64 };
  65
  66 /* GPU device information -- for now with only CUDA devices.
  67  * The gmx_hardware_detect module initializes it. */
  68 typedef struct
  69 {
  70     gmx_bool             bUserSet;      /* true if the GPUs in cuda_dev_use are manually provided by the user */
  71
  72     int                  ncuda_dev_use; /* number of devices selected to be used */
  73     int                 *cuda_dev_use;  /* index of the devices selected to be used */
  74     int                  ncuda_dev;     /* total number of devices detected */
  75     cuda_dev_info_ptr_t  cuda_dev;      /* devices detected in the system (per node) */
  76 } gmx_gpu_info_t;
  77
  78 /* Hardware information structure with CPU and GPU information.
  79  * It is initialized by gmx_detect_hardware().
  80  * NOTE: this structure may only contain structures that are globally valid
  81  *       (i.e. must be able to be shared among all threads) */
  82 typedef struct
  83 {
  84     gmx_bool        bCanUseGPU;          /* True if compatible GPUs are detected during hardware detection */
  85     gmx_gpu_info_t  gpu_info;            /* Information about GPUs detected in the system */
  86
  87     gmx_cpuid_t     cpuid_info;          /* CPUID information about CPU detected;
  88                                             NOTE: this will only detect the CPU thread 0 of the
  89                                             current process runs on. */
  90     int             nthreads_hw_avail;   /* Number of hardware threads available; this number
  91                                             is based on the number of CPUs reported as available
  92                                             by the OS at the time of detection. */
  93     gmx_bool        bConsistencyChecked; /* whether
  94                                             gmx_check_hw_runconf_consistency()
  95                                             has been run with this hw_info */
  96 } gmx_hw_info_t;
  97
  98 #ifdef __cplusplus
  99 }
 100 #endif
 101
 102 #endif /* HWINFO_H */