text: /* ************************************************************************
   * Copyright 2018-2020 Advanced Micro Devices, Inc.
   *
   * ************************************************************************ */
  
  #pragma once
  
  #include "bytes.hpp"
  #include "cblas_interface.hpp"
  #include "flops.hpp"
  #include "near.hpp"
  #include "norm.hpp"
  #include "rocblas.hpp"
  #include "rocblas_datatype2string.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>
  void testing_gemv_bad_arg(const Arguments& arg)
  {
      for(auto pointer_mode : {rocblas_pointer_mode_host, rocblas_pointer_mode_device})
      {
          auto rocblas_gemv_fn = arg.fortran ? rocblas_gemv<T, true> : rocblas_gemv<T, false>;
  
          const rocblas_int M    = 100;
          const rocblas_int N    = 100;
          const rocblas_int lda  = 100;
          const rocblas_int incx = 1;
          const rocblas_int incy = 1;
  
          device_vector<T> alpha_d(1), beta_d(1), zero_d(1), one_d(1);
          const T          alpha_h(1), beta_h(1), zero_h(0), one_h(1);
  
          const T* alpha = &alpha_h;
          const T* beta  = &beta_h;
          const T* zero  = &zero_h;
          const T* one   = &one_h;
  
          if(pointer_mode == rocblas_pointer_mode_device)
          {
              CHECK_HIP_ERROR(hipMemcpy(alpha_d, alpha, sizeof(*alpha), hipMemcpyHostToDevice));
              alpha = alpha_d;
              CHECK_HIP_ERROR(hipMemcpy(beta_d, beta, sizeof(*beta), hipMemcpyHostToDevice));
              beta = beta_d;
              CHECK_HIP_ERROR(hipMemcpy(zero_d, zero, sizeof(*zero), hipMemcpyHostToDevice));
              zero = zero_d;
              CHECK_HIP_ERROR(hipMemcpy(one_d, one, sizeof(*one), hipMemcpyHostToDevice));
              one = one_d;
          }
  
          const rocblas_operation transA = rocblas_operation_none;
  
          rocblas_local_handle handle{arg};
          CHECK_ROCBLAS_ERROR(rocblas_set_pointer_mode(handle, pointer_mode));
  
          size_t size_A = lda * size_t(N);
          size_t size_x = N * size_t(incx);
          size_t size_y = M * size_t(incy);
  
          // Naming: dK is in GPU (device) memory. hK is in CPU (host) memory
          host_vector<T> hA(size_A);
          host_vector<T> hx(size_x);
          host_vector<T> hy(size_y);
  
          // Initial Data on CPU
          rocblas_seedrand();
          rocblas_init<T>(hA, M, N, lda);
          rocblas_init<T>(hx, 1, N, incx);
          rocblas_init<T>(hy, 1, M, incy);
  
          // allocate memory on device
          device_vector<T> dA(size_A);
          device_vector<T> dx(size_x);
          device_vector<T> dy(size_y);
          CHECK_DEVICE_ALLOCATION(dA.memcheck());
          CHECK_DEVICE_ALLOCATION(dx.memcheck());
          CHECK_DEVICE_ALLOCATION(dy.memcheck());
  
          // copy data from CPU to device
          CHECK_HIP_ERROR(hipMemcpy(dA, hA, sizeof(T) * size_A, hipMemcpyHostToDevice));
          CHECK_HIP_ERROR(hipMemcpy(dx, hx, sizeof(T) * size_x, hipMemcpyHostToDevice));
          CHECK_HIP_ERROR(hipMemcpy(dy, hy, sizeof(T) * size_y, hipMemcpyHostToDevice));
  
          EXPECT_ROCBLAS_STATUS(
              rocblas_gemv_fn(handle, transA, M, N, alpha, nullptr, lda, dx, incx, beta, dy, incy),
              rocblas_status_invalid_pointer);
  
          EXPECT_ROCBLAS_STATUS(
              rocblas_gemv_fn(handle, transA, M, N, alpha, dA, lda, nullptr, incx, beta, dy, incy),
              rocblas_status_invalid_pointer);
  
          EXPECT_ROCBLAS_STATUS(
              rocblas_gemv_fn(handle, transA, M, N, alpha, dA, lda, dx, incx, beta, nullptr, incy),
              rocblas_status_invalid_pointer);
  
          EXPECT_ROCBLAS_STATUS(
              rocblas_gemv_fn(handle, transA, M, N, nullptr, dA, lda, dx, incx, beta, dy, incy),
              rocblas_status_invalid_pointer);
  
          EXPECT_ROCBLAS_STATUS(
              rocblas_gemv_fn(handle, transA, M, N, alpha, dA, lda, dx, incx, nullptr, dy, incy),
              rocblas_status_invalid_pointer);
  
          EXPECT_ROCBLAS_STATUS(
              rocblas_gemv_fn(nullptr, transA, M, N, alpha, dA, lda, dx, incx, beta, dy, incy),
              rocblas_status_invalid_handle);
  
          // If M==0, then all pointers may be nullptr without error
          EXPECT_ROCBLAS_STATUS(
              rocblas_gemv_fn(
                  handle, transA, 0, N, nullptr, nullptr, lda, nullptr, incx, nullptr, nullptr, incy),
              rocblas_status_success);
  
          // If N==0, then all pointers may be nullptr without error
          EXPECT_ROCBLAS_STATUS(
              rocblas_gemv_fn(
                  handle, transA, M, 0, nullptr, nullptr, lda, nullptr, incx, nullptr, nullptr, incy),
              rocblas_status_success);
  
          // We can only test alpha==0 if pointer_mode == rocblas_pointer_mode_host
          if(pointer_mode == rocblas_pointer_mode_host)
          {
              // If alpha==0, then A and X may be nullptr without error
              EXPECT_ROCBLAS_STATUS(
                  rocblas_gemv_fn(
                      handle, transA, M, N, zero, nullptr, lda, nullptr, incx, beta, dy, incy),
                  rocblas_status_success);
  
              // If alpha==0 && beta==1, then A, X and Y may be nullptr without error
              EXPECT_ROCBLAS_STATUS(
                  rocblas_gemv_fn(
                      handle, transA, M, N, zero, nullptr, lda, nullptr, incx, one, nullptr, incy),
                  rocblas_status_success);
          }
      }
  }
  
  template <typename T>
  void testing_gemv(const Arguments& arg)
  {
      auto rocblas_gemv_fn = arg.fortran ? rocblas_gemv<T, true> : rocblas_gemv<T, false>;
  
      rocblas_int       M       = arg.M;
      rocblas_int       N       = arg.N;
      rocblas_int       lda     = arg.lda;
      rocblas_int       incx    = arg.incx;
      rocblas_int       incy    = arg.incy;
      T                 h_alpha = arg.get_alpha<T>();
      T                 h_beta  = arg.get_beta<T>();
      rocblas_operation transA  = char2rocblas_operation(arg.transA);
      bool              HMM     = arg.HMM;
  
      rocblas_local_handle handle{arg};
  
      // argument sanity check before allocating invalid memory
      bool invalid_size = M < 0 || N < 0 || lda < M || lda < 1 || !incx || !incy;
      if(invalid_size || !M || !N)
      {
          EXPECT_ROCBLAS_STATUS(
              rocblas_gemv_fn(
                  handle, transA, M, N, nullptr, nullptr, lda, nullptr, incx, nullptr, nullptr, incy),
              invalid_size ? rocblas_status_invalid_size : rocblas_status_success);
  
          return;
      }
  
      size_t size_A = lda * size_t(N);
      size_t size_x, dim_x, abs_incx;
      size_t size_y, dim_y, abs_incy;
  
      if(transA == rocblas_operation_none)
      {
          dim_x = N;
          dim_y = M;
      }
      else
      {
          dim_x = M;
          dim_y = N;
      }
  
      abs_incx = incx >= 0 ? incx : -incx;
      abs_incy = incy >= 0 ? incy : -incy;
  
      size_x = dim_x * abs_incx;
      size_y = dim_y * abs_incy;
  
      // Naming: dK is in GPU (device) memory. hK is in CPU (host) memory
      host_vector<T> hA(size_A);
      host_vector<T> hx(size_x);
      host_vector<T> hy_1(size_y);
      host_vector<T> hy_2(size_y);
      host_vector<T> hy_gold(size_y);
  
      device_vector<T> dA(size_A, 1, HMM);
      device_vector<T> dx(size_x, 1, HMM);
      device_vector<T> dy_1(size_y, 1, HMM);
      device_vector<T> dy_2(size_y, 1, HMM);
      device_vector<T> d_alpha(1, 1, HMM);
      device_vector<T> d_beta(1, 1, HMM);
      CHECK_DEVICE_ALLOCATION(dA.memcheck());
      CHECK_DEVICE_ALLOCATION(dx.memcheck());
      CHECK_DEVICE_ALLOCATION(dy_1.memcheck());
      CHECK_DEVICE_ALLOCATION(dy_2.memcheck());
      CHECK_DEVICE_ALLOCATION(d_alpha.memcheck());
      CHECK_DEVICE_ALLOCATION(d_beta.memcheck());
  
      // Initial Data on CPU
      rocblas_seedrand();
      if(arg.alpha_isnan<T>())
      {
          rocblas_init_nan<T>(hA, M, N, lda);
          rocblas_init_nan<T>(hx, 1, dim_x, abs_incx);
      }
      else
      {
          rocblas_init<T>(hA, M, N, lda);
          rocblas_init<T>(hx, 1, dim_x, abs_incx);
      }
  
      if(arg.beta_isnan<T>())
          rocblas_init_nan<T>(hy_1, 1, dim_y, abs_incy);
      else
          rocblas_init<T>(hy_1, 1, dim_y, abs_incy);
  
      // copy vector is easy in STL; hy_gold = hy_1: save a copy in hy_gold which will be output of
      // CPU BLAS
      hy_gold = hy_1;
      hy_2    = hy_1;
  
      // copy data from CPU to device
      CHECK_HIP_ERROR(dA.transfer_from(hA));
      CHECK_HIP_ERROR(dx.transfer_from(hx));
      CHECK_HIP_ERROR(dy_1.transfer_from(hy_1));
  
      double gpu_time_used, cpu_time_used;
      double rocblas_error_1;
      double rocblas_error_2;
  
      /* =====================================================================
             ROCBLAS
      =================================================================== */
      if(arg.unit_check || arg.norm_check)
      {
          dy_2.transfer_from(hy_2);
          CHECK_HIP_ERROR(hipMemcpy(d_alpha, &h_alpha, sizeof(T), hipMemcpyHostToDevice));
          CHECK_HIP_ERROR(hipMemcpy(d_beta, &h_beta, sizeof(T), hipMemcpyHostToDevice));
  
          CHECK_ROCBLAS_ERROR(rocblas_set_pointer_mode(handle, rocblas_pointer_mode_host));
          CHECK_ROCBLAS_ERROR(rocblas_gemv_fn(
              handle, transA, M, N, &h_alpha, dA, lda, dx, incx, &h_beta, dy_1, incy));
  
          CHECK_ROCBLAS_ERROR(rocblas_set_pointer_mode(handle, rocblas_pointer_mode_device));
          CHECK_ROCBLAS_ERROR(
              rocblas_gemv_fn(handle, transA, M, N, d_alpha, dA, lda, dx, incx, d_beta, dy_2, incy));
  
          // CPU BLAS
          cpu_time_used = get_time_us_no_sync();
  
          cblas_gemv<T>(transA, M, N, h_alpha, hA, lda, hx, incx, h_beta, hy_gold, incy);
  
          cpu_time_used = get_time_us_no_sync() - cpu_time_used;
  
          // copy output from device to CPU
          CHECK_HIP_ERROR(hy_1.transfer_from(dy_1));
          CHECK_HIP_ERROR(hy_2.transfer_from(dy_2));
  
          if(arg.unit_check)
          {
              unit_check_general<T>(1, dim_y, abs_incy, hy_gold, hy_1);
              unit_check_general<T>(1, dim_y, abs_incy, hy_gold, hy_2);
          }
  
          if(arg.norm_check)
          {
              rocblas_error_1 = norm_check_general<T>('F', 1, dim_y, abs_incy, hy_gold, hy_1);
              rocblas_error_2 = norm_check_general<T>('F', 1, dim_y, abs_incy, hy_gold, hy_2);
          }
      }
  
      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_host));
  
          for(int iter = 0; iter < number_cold_calls; iter++)
          {
              rocblas_gemv_fn(handle, transA, M, N, &h_alpha, dA, lda, dx, incx, &h_beta, dy_1, incy);
          }
  
          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_gemv_fn(handle, transA, M, N, &h_alpha, dA, lda, dx, incx, &h_beta, dy_1, incy);
          }
  
          gpu_time_used = get_time_us_sync(stream) - gpu_time_used;
  
          ArgumentModel<e_transA, e_M, e_N, e_alpha, e_lda, e_incx, e_beta, e_incy>{}.log_args<T>(
              rocblas_cout,
              arg,
              gpu_time_used,
              gemv_gflop_count<T>(transA, M, N),
              gemv_gbyte_count<T>(transA, M, N),
              cpu_time_used,
              rocblas_error_1,
              rocblas_error_2);
      }
  }
  