cuMemHostRegister failure reproducer

cu-mem-reg.c

#include <cuda.h>
#include <stdio.h>
#include <stdexcept>
#include <iostream>

#define CUDAPP_CALL_GUARDED(NAME, ARGLIST) \
{ \
  CUresult cu_status_code; \
  cu_status_code = NAME ARGLIST; \
  if (cu_status_code != CUDA_SUCCESS) \
  { \
    printf("routine '%s' failed with code '%d'\n", #NAME, cu_status_code); \
    abort(); \
  } \
}

int main()
{
  int N = 1024;
  size_t size = N * sizeof(float);

  float* h_A = (float*)malloc(size);

  CUDAPP_CALL_GUARDED(cuInit, (0));

  // Get number of devices supporting CUDA
  int deviceCount = 0;
  CUDAPP_CALL_GUARDED(cuDeviceGetCount, (&deviceCount));
  if (deviceCount == 0) {
    printf("There is no device supporting CUDA.\n");
    exit (0);
  }

  // Get handle for device 0
  CUdevice cuDevice;
  CUDAPP_CALL_GUARDED(cuDeviceGet, (&cuDevice, 0));

  // Create context
  CUcontext cuContext;
  CUDAPP_CALL_GUARDED(cuCtxCreate, (&cuContext, 0, cuDevice));

  CUDAPP_CALL_GUARDED(cuMemHostRegister, (h_A, size, 0));

  return 0;
}