moving helps to examples/util

examples/util/nvcc_helpers.cu

@@ -0,0 +1,43 @@
+#ifndef _CUDA_
+#error "Something went wrong..."
+#endif
+
+void ispc_malloc(void **ptr, const size_t size)
+{
+  cudaMallocManaged(ptr, size);
+}
+void ispc_free(void *ptr)
+{
+  cudaFree(ptr);
+}
+void ispc_memset(void *ptr, int value, size_t size)
+{
+  cudaMemset(ptr, value, size);
+}
+void ispcSetMallocHeapLimit(size_t value)
+{
+  cudaDeviceSetLimit(cudaLimitMallocHeapSize,value);
+}
+void ispcSetStackLimit(size_t value)
+{
+  cudaDeviceSetLimit(cudaLimitStackSize,value);
+}
+unsigned long long ispcGetMallocHeapLimit()
+{
+  size_t value;
+  cudaDeviceGetLimit(&value, cudaLimitMallocHeapSize);
+  return value;
+}
+unsigned long long ispcGetStackLimit()
+{
+  size_t value;
+  cudaDeviceGetLimit(&value, cudaLimitStackSize);
+  return value;
+}
+void * ispcMemcpy(void *dest,  void *src,  size_t num)
+{
+  cudaMemcpy(dest, src, num, cudaMemcpyDefault);
+  return dest;
+}
+
+