message: In HIP kernels, use MFEM_HIP_BLOCKS instead of MFEM_CUDA_BLOCKS.
  There is no change in the compiled code since both macros are
  defined to be 256.
diff: @@ -951,7 +951,7 @@ static double cuVectorDot(const int N, const double *X, const double *Y)
  #ifdef MFEM_USE_HIP
  static __global__ void hipKernelMin(const int N, double *gdsr, const double *x)
  {
  - __shared__ double s_min[MFEM_CUDA_BLOCKS];
  + __shared__ double s_min[MFEM_HIP_BLOCKS];
  const int n = hipBlockDim_x*hipBlockIdx_x + hipThreadIdx_x;
  if (n>=N) { return; }
  const int bid = hipBlockIdx_x;
  @@ -978,8 +978,8 @@ static Array<double> cuda_reduce_buf;
  static double hipVectorMin(const int N, const double *X)
  {
  - const int tpb = MFEM_CUDA_BLOCKS;
  - const int blockSize = MFEM_CUDA_BLOCKS;
  + const int tpb = MFEM_HIP_BLOCKS;
  + const int blockSize = MFEM_HIP_BLOCKS;
  const int gridSize = (N+blockSize-1)/blockSize;
  const int min_sz = (N%tpb)==0 ? (N/tpb) : (1+N/tpb);
  cuda_reduce_buf.SetSize(min_sz);
  @@ -996,7 +996,7 @@ static double hipVectorMin(const int N, const double *X)
  static __global__ void hipKernelDot(const int N, double *gdsr,
  const double *x, const double *y)
  {
  - __shared__ double s_dot[MFEM_CUDA_BLOCKS];
  + __shared__ double s_dot[MFEM_HIP_BLOCKS];
  const int n = hipBlockDim_x*hipBlockIdx_x + hipThreadIdx_x;
  if (n>=N) { return; }
  const int bid = hipBlockIdx_x;
  @@ -1021,8 +1021,8 @@ static __global__ void hipKernelDot(const int N, double *gdsr,
  static double hipVectorDot(const int N, const double *X, const double *Y)
  {
  - const int tpb = MFEM_CUDA_BLOCKS;
  - const int blockSize = MFEM_CUDA_BLOCKS;
  + const int tpb = MFEM_HIP_BLOCKS;
  + const int blockSize = MFEM_HIP_BLOCKS;
  const int gridSize = (N+blockSize-1)/blockSize;
  const int dot_sz = (N%tpb)==0 ? (N/tpb) : (1+N/tpb);
  cuda_reduce_buf.SetSize(dot_sz);
  