text: /* ************************************************************************
   * Copyright 2018-2020 Advanced Micro Devices, Inc.
   * ************************************************************************ */
  
  #include "cblas_interface.hpp"
  #include "norm.hpp"
  #include "rocblas.hpp"
  #include "rocblas_init.hpp"
  #include "rocblas_math.hpp"
  #include "rocblas_random.hpp"
  #include "rocblas_test.hpp"
  #include "rocblas_vector.hpp"
  #include "unit.hpp"
  #include "utility.hpp"
  
  template <typename T, typename U = T, typename V = T>
  void testing_rot_strided_batched_bad_arg(const Arguments& arg)
  {
      // clang-format off
      const bool FORTRAN                        = arg.fortran;
      auto       rocblas_rot_strided_batched_fn = FORTRAN ? rocblas_rot_strided_batched<T, U, V, true>
                                                          : rocblas_rot_strided_batched<T, U, V, false>;
      // clang-format on
  
      rocblas_int         N           = 100;
      rocblas_int         incx        = 1;
      rocblas_stride      stride_x    = 1;
      rocblas_int         incy        = 1;
      rocblas_stride      stride_y    = 1;
      rocblas_int         batch_count = 5;
      static const size_t safe_size   = 100;
  
      rocblas_local_handle handle(arg.atomics_mode);
      device_vector<T>     dx(safe_size);
      device_vector<T>     dy(safe_size);
      device_vector<U>     dc(1);
      device_vector<V>     ds(1);
      CHECK_DEVICE_ALLOCATION(dx.memcheck());
      CHECK_DEVICE_ALLOCATION(dy.memcheck());
      CHECK_DEVICE_ALLOCATION(dc.memcheck());
      CHECK_DEVICE_ALLOCATION(ds.memcheck());
  
      EXPECT_ROCBLAS_STATUS(
          (rocblas_rot_strided_batched_fn(
              nullptr, N, dx, incx, stride_x, dy, incy, stride_y, dc, ds, batch_count)),
          rocblas_status_invalid_handle);
      EXPECT_ROCBLAS_STATUS(
          (rocblas_rot_strided_batched_fn(
              handle, N, nullptr, incx, stride_x, dy, incy, stride_y, dc, ds, batch_count)),
          rocblas_status_invalid_pointer);
      EXPECT_ROCBLAS_STATUS(
          (rocblas_rot_strided_batched_fn(
              handle, N, dx, incx, stride_x, nullptr, incy, stride_y, dc, ds, batch_count)),
          rocblas_status_invalid_pointer);
      EXPECT_ROCBLAS_STATUS(
          (rocblas_rot_strided_batched_fn(
              handle, N, dx, incx, stride_x, dy, incy, stride_y, nullptr, ds, batch_count)),
          rocblas_status_invalid_pointer);
      EXPECT_ROCBLAS_STATUS(
          (rocblas_rot_strided_batched_fn(
              handle, N, dx, incx, stride_x, dy, incy, stride_y, dc, nullptr, batch_count)),
          rocblas_status_invalid_pointer);
  }
  
  template <typename T, typename U = T, typename V = T>
  void testing_rot_strided_batched(const Arguments& arg)
  {
      // clang-format off
      const bool FORTRAN                        = arg.fortran;
      auto       rocblas_rot_strided_batched_fn = FORTRAN ? rocblas_rot_strided_batched<T, U, V, true>
                                                          : rocblas_rot_strided_batched<T, U, V, false>;
      // clang-format on
  
      rocblas_int N           = arg.N;
      rocblas_int incx        = arg.incx;
      rocblas_int stride_x    = arg.stride_x;
      rocblas_int stride_y    = arg.stride_y;
      rocblas_int incy        = arg.incy;
      rocblas_int batch_count = arg.batch_count;
  
      rocblas_local_handle handle(arg.atomics_mode);
      double               gpu_time_used, cpu_time_used;
      double norm_error_host_x = 0.0, norm_error_host_y = 0.0, norm_error_device_x = 0.0,
             norm_error_device_y = 0.0;
  
      // check to prevent undefined memory allocation error
      if(N <= 0 || batch_count <= 0)
      {
          CHECK_ROCBLAS_ERROR(rocblas_set_pointer_mode(handle, rocblas_pointer_mode_device));
          EXPECT_ROCBLAS_STATUS((rocblas_rot_strided_batched_fn)(handle,
                                                                 N,
                                                                 nullptr,
                                                                 incx,
                                                                 stride_x,
                                                                 nullptr,
                                                                 incy,
                                                                 stride_y,
                                                                 nullptr,
                                                                 nullptr,
                                                                 batch_count),
                                rocblas_status_success);
          return;
      }
  
      rocblas_int abs_incx = incx >= 0 ? incx : -incx;
      rocblas_int abs_incy = incy >= 0 ? incy : -incy;
      size_t      size_x   = N * size_t(abs_incx) + size_t(stride_x) * size_t(batch_count - 1);
      size_t      size_y   = N * size_t(abs_incy) + size_t(stride_y) * size_t(batch_count - 1);
  
      device_vector<T> dx(size_x);
      device_vector<T> dy(size_y);
      device_vector<U> dc(1);
      device_vector<V> ds(1);
      CHECK_DEVICE_ALLOCATION(dx.memcheck());
      CHECK_DEVICE_ALLOCATION(dy.memcheck());
      CHECK_DEVICE_ALLOCATION(dc.memcheck());
      CHECK_DEVICE_ALLOCATION(ds.memcheck());
  
      // Initial Data on CPU
      host_vector<T> hx(size_x);
      host_vector<T> hy(size_y);
      host_vector<U> hc(1);
      host_vector<V> hs(1);
      rocblas_seedrand();
      rocblas_init<T>(hx, 1, N, abs_incx, stride_x, batch_count);
      rocblas_init<T>(hy, 1, N, abs_incy, stride_y, batch_count);
  
      rocblas_init<U>(hc, 1, 1, 1);
      rocblas_init<V>(hs, 1, 1, 1);
  
      // CPU BLAS reference data
      host_vector<T> cx = hx;
      host_vector<T> cy = hy;
      // cblas_rotg<T, U>(cx, cy, hc, hs);
      // cx[0] = hx[0];
      // cy[0] = hy[0];
      cpu_time_used = get_time_us_no_sync();
      for(int b = 0; b < batch_count; b++)
      {
          cblas_rot<T, T, U, V>(N, cx + b * stride_x, incx, cy + b * stride_y, incy, hc, hs);
      }
      cpu_time_used = get_time_us_no_sync() - cpu_time_used;
  
      if(arg.unit_check || arg.norm_check)
      {
          // Test rocblas_pointer_mode_host
          {
              CHECK_ROCBLAS_ERROR(rocblas_set_pointer_mode(handle, rocblas_pointer_mode_host));
              CHECK_HIP_ERROR(hipMemcpy(dx, hx, sizeof(T) * size_x, hipMemcpyHostToDevice));
              CHECK_HIP_ERROR(hipMemcpy(dy, hy, sizeof(T) * size_y, hipMemcpyHostToDevice));
              CHECK_ROCBLAS_ERROR((rocblas_rot_strided_batched_fn(
                  handle, N, dx, incx, stride_x, dy, incy, stride_y, hc, hs, batch_count)));
              host_vector<T> rx(size_x);
              host_vector<T> ry(size_y);
              CHECK_HIP_ERROR(hipMemcpy(rx, dx, sizeof(T) * size_x, hipMemcpyDeviceToHost));
              CHECK_HIP_ERROR(hipMemcpy(ry, dy, sizeof(T) * size_y, hipMemcpyDeviceToHost));
              if(arg.unit_check)
              {
                  unit_check_general<T>(1, N, abs_incx, stride_x, cx, rx, batch_count);
                  unit_check_general<T>(1, N, abs_incy, stride_y, cy, ry, batch_count);
              }
              if(arg.norm_check)
              {
                  norm_error_host_x
                      = norm_check_general<T>('F', 1, N, abs_incx, stride_x, cx, rx, batch_count);
                  norm_error_host_y
                      = norm_check_general<T>('F', 1, N, abs_incy, stride_x, cy, ry, batch_count);
              }
          }
  
          // Test rocblas_pointer_mode_device
          {
              CHECK_ROCBLAS_ERROR(rocblas_set_pointer_mode(handle, rocblas_pointer_mode_device));
              CHECK_HIP_ERROR(hipMemcpy(dx, hx, sizeof(T) * size_x, hipMemcpyHostToDevice));
              CHECK_HIP_ERROR(hipMemcpy(dy, hy, sizeof(T) * size_y, hipMemcpyHostToDevice));
              CHECK_HIP_ERROR(hipMemcpy(dc, hc, sizeof(U), hipMemcpyHostToDevice));
              CHECK_HIP_ERROR(hipMemcpy(ds, hs, sizeof(V), hipMemcpyHostToDevice));
              CHECK_ROCBLAS_ERROR((rocblas_rot_strided_batched_fn(
                  handle, N, dx, incx, stride_x, dy, incy, stride_y, dc, ds, batch_count)));
              host_vector<T> rx(size_x);
              host_vector<T> ry(size_y);
              CHECK_HIP_ERROR(hipMemcpy(rx, dx, sizeof(T) * size_x, hipMemcpyDeviceToHost));
              CHECK_HIP_ERROR(hipMemcpy(ry, dy, sizeof(T) * size_y, hipMemcpyDeviceToHost));
              if(arg.unit_check)
              {
                  unit_check_general<T>(1, N, abs_incx, stride_x, cx, rx, batch_count);
                  unit_check_general<T>(1, N, abs_incy, stride_y, cy, ry, batch_count);
              }
              if(arg.norm_check)
              {
                  norm_error_device_x
                      = norm_check_general<T>('F', 1, N, abs_incx, stride_x, cx, rx, batch_count);
                  norm_error_device_y
                      = norm_check_general<T>('F', 1, N, abs_incy, stride_y, cy, ry, batch_count);
              }
          }
      }
  
      if(arg.timing)
      {
          int number_cold_calls = arg.cold_iters;
          int number_hot_calls  = arg.iters;
          CHECK_ROCBLAS_ERROR(rocblas_set_pointer_mode(handle, rocblas_pointer_mode_device));
          CHECK_HIP_ERROR(hipMemcpy(dx, hx, sizeof(T) * size_x, hipMemcpyHostToDevice));
          CHECK_HIP_ERROR(hipMemcpy(dy, hy, sizeof(T) * size_y, hipMemcpyHostToDevice));
          CHECK_HIP_ERROR(hipMemcpy(dc, hc, sizeof(U), hipMemcpyHostToDevice));
          CHECK_HIP_ERROR(hipMemcpy(ds, hs, sizeof(V), hipMemcpyHostToDevice));
  
          for(int iter = 0; iter < number_cold_calls; iter++)
          {
              rocblas_rot_strided_batched_fn(
                  handle, N, dx, incx, stride_x, dy, incy, stride_y, dc, ds, batch_count);
          }
          hipStream_t stream;
          CHECK_ROCBLAS_ERROR(rocblas_get_stream(handle, &stream));
          gpu_time_used = get_time_us_sync(stream); // in microseconds
          for(int iter = 0; iter < number_hot_calls; iter++)
          {
              rocblas_rot_strided_batched_fn(
                  handle, N, dx, incx, stride_x, dy, incy, stride_y, dc, ds, batch_count);
          }
          gpu_time_used = (get_time_us_sync(stream) - gpu_time_used) / number_hot_calls;
  
          rocblas_cout << "N,incx,incy,rocblas(us),cpu(us)";
          if(arg.norm_check)
              rocblas_cout
                  << ",norm_error_host_x,norm_error_host_y,norm_error_device_x,norm_error_device_y";
          rocblas_cout << std::endl;
          rocblas_cout << N << "," << incx << "," << incy << "," << gpu_time_used << ","
                       << cpu_time_used;
          if(arg.norm_check)
              rocblas_cout << ',' << norm_error_host_x << ',' << norm_error_host_y << ","
                           << norm_error_device_x << "," << norm_error_device_y;
          rocblas_cout << std::endl;
      }
  }
  