/* ************************************************************************
 * Copyright (C) 2020 Advanced Micro Devices, Inc. All rights Reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 *
 * ************************************************************************ */

#pragma once
#ifndef TESTING_CSRSM2_HPP
#define TESTING_CSRSM2_HPP

#include "display.hpp"
#include "flops.hpp"
#include "gbyte.hpp"
#include "hipsparse.hpp"
#include "hipsparse_arguments.hpp"
#include "hipsparse_test_unique_ptr.hpp"
#include "unit.hpp"
#include "utility.hpp"

#include <algorithm>
#include <cmath>
#include <hipsparse.h>
#include <limits>
#include <string>

using namespace hipsparse;
using namespace hipsparse_test;

template <typename T>
void testing_csrsm2_bad_arg(const Arguments& argus)
{
#if(!defined(CUDART_VERSION))
    int                    m         = 100;
    int                    nrhs      = 100;
    int                    nnz       = 100;
    int                    safe_size = 100;
    T                      h_alpha   = make_DataType<T>(0.6);
    hipsparseOperation_t   transA    = HIPSPARSE_OPERATION_NON_TRANSPOSE;
    hipsparseOperation_t   transB    = HIPSPARSE_OPERATION_NON_TRANSPOSE;
    hipsparseSolvePolicy_t policy    = HIPSPARSE_SOLVE_POLICY_USE_LEVEL;

    std::unique_ptr<handle_struct> unique_ptr_handle(new handle_struct);
    hipsparseHandle_t              handle = unique_ptr_handle->handle;

    std::unique_ptr<descr_struct> unique_ptr_descr(new descr_struct);
    hipsparseMatDescr_t           descr = unique_ptr_descr->descr;

    std::unique_ptr<csrsm2_struct> unique_ptr_csrsm2_info(new csrsm2_struct);
    csrsm2Info_t                   info = unique_ptr_csrsm2_info->info;

    auto dptr_managed = hipsparse_unique_ptr{device_malloc(sizeof(int) * safe_size), device_free};
    auto dcol_managed = hipsparse_unique_ptr{device_malloc(sizeof(int) * safe_size), device_free};
    auto dval_managed = hipsparse_unique_ptr{device_malloc(sizeof(T) * safe_size), device_free};
    auto dB_managed   = hipsparse_unique_ptr{device_malloc(sizeof(T) * safe_size), device_free};
    auto dbuffer_managed
        = hipsparse_unique_ptr{device_malloc(sizeof(char) * safe_size), device_free};

    int*  dptr    = (int*)dptr_managed.get();
    int*  dcol    = (int*)dcol_managed.get();
    T*    dval    = (T*)dval_managed.get();
    T*    dB      = (T*)dB_managed.get();
    void* dbuffer = (void*)dbuffer_managed.get();

    size_t size;
    int    position;

    verify_hipsparse_status_invalid_pointer(hipsparseXcsrsm2_bufferSizeExt(handle,
                                                                           0,
                                                                           transA,
                                                                           transB,
                                                                           m,
                                                                           nrhs,
                                                                           nnz,
                                                                           (T*)nullptr,
                                                                           descr,
                                                                           dval,
                                                                           dptr,
                                                                           dcol,
                                                                           dB,
                                                                           safe_size,
                                                                           info,
                                                                           policy,
                                                                           &size),
                                            "Error: dalpha is nullptr");
    verify_hipsparse_status_invalid_pointer(hipsparseXcsrsm2_bufferSizeExt(handle,
                                                                           0,
                                                                           transA,
                                                                           transB,
                                                                           m,
                                                                           nrhs,
                                                                           nnz,
                                                                           &h_alpha,
                                                                           descr,
                                                                           dval,
                                                                           (int*)nullptr,
                                                                           dcol,
                                                                           dB,
                                                                           safe_size,
                                                                           info,
                                                                           policy,
                                                                           &size),
                                            "Error: dptr is nullptr");
    verify_hipsparse_status_invalid_pointer(hipsparseXcsrsm2_bufferSizeExt(handle,
                                                                           0,
                                                                           transA,
                                                                           transB,
                                                                           m,
                                                                           nrhs,
                                                                           nnz,
                                                                           &h_alpha,
                                                                           descr,
                                                                           dval,
                                                                           dptr,
                                                                           (int*)nullptr,
                                                                           dB,
                                                                           safe_size,
                                                                           info,
                                                                           policy,
                                                                           &size),
                                            "Error: dcol is nullptr");
    verify_hipsparse_status_invalid_pointer(hipsparseXcsrsm2_bufferSizeExt(handle,
                                                                           0,
                                                                           transA,
                                                                           transB,
                                                                           m,
                                                                           nrhs,
                                                                           nnz,
                                                                           &h_alpha,
                                                                           descr,
                                                                           (T*)nullptr,
                                                                           dptr,
                                                                           dcol,
                                                                           dB,
                                                                           safe_size,
                                                                           info,
                                                                           policy,
                                                                           &size),
                                            "Error: dval is nullptr");
    verify_hipsparse_status_invalid_pointer(hipsparseXcsrsm2_bufferSizeExt(handle,
                                                                           0,
                                                                           transA,
                                                                           transB,
                                                                           m,
                                                                           nrhs,
                                                                           nnz,
                                                                           &h_alpha,
                                                                           descr,
                                                                           dval,
                                                                           dptr,
                                                                           dcol,
                                                                           dB,
                                                                           safe_size,
                                                                           info,
                                                                           policy,
                                                                           (size_t*)nullptr),
                                            "Error: size is nullptr");
    verify_hipsparse_status_invalid_pointer(
        hipsparseXcsrsm2_bufferSizeExt(handle,
                                       0,
                                       transA,
                                       transB,
                                       m,
                                       nrhs,
                                       nnz,
                                       &h_alpha,
                                       (hipsparseMatDescr_t) nullptr,
                                       dval,
                                       dptr,
                                       dcol,
                                       dB,
                                       safe_size,
                                       info,
                                       policy,
                                       &size),
        "Error: descr is nullptr");
    verify_hipsparse_status_invalid_pointer(hipsparseXcsrsm2_bufferSizeExt(handle,
                                                                           0,
                                                                           transA,
                                                                           transB,
                                                                           m,
                                                                           nrhs,
                                                                           nnz,
                                                                           &h_alpha,
                                                                           descr,
                                                                           dval,
                                                                           dptr,
                                                                           dcol,
                                                                           dB,
                                                                           safe_size,
                                                                           (csrsm2Info_t) nullptr,
                                                                           policy,
                                                                           &size),
                                            "Error: info is nullptr");
    verify_hipsparse_status_invalid_pointer(hipsparseXcsrsm2_bufferSizeExt(handle,
                                                                           0,
                                                                           transA,
                                                                           transB,
                                                                           m,
                                                                           nrhs,
                                                                           nnz,
                                                                           &h_alpha,
                                                                           descr,
                                                                           dval,
                                                                           dptr,
                                                                           dcol,
                                                                           (T*)nullptr,
                                                                           safe_size,
                                                                           info,
                                                                           policy,
                                                                           &size),
                                            "Error: dB is nullptr");
    verify_hipsparse_status_invalid_handle(
        hipsparseXcsrsm2_bufferSizeExt((hipsparseHandle_t) nullptr,
                                       0,
                                       transA,
                                       transB,
                                       m,
                                       nrhs,
                                       nnz,
                                       &h_alpha,
                                       descr,
                                       dval,
                                       dptr,
                                       dcol,
                                       dB,
                                       safe_size,
                                       info,
                                       policy,
                                       &size));

    verify_hipsparse_status_invalid_pointer(hipsparseXcsrsm2_analysis(handle,
                                                                      0,
                                                                      transA,
                                                                      transB,
                                                                      m,
                                                                      nrhs,
                                                                      nnz,
                                                                      (T*)nullptr,
                                                                      descr,
                                                                      dval,
                                                                      dptr,
                                                                      dcol,
                                                                      dB,
                                                                      safe_size,
                                                                      info,
                                                                      policy,
                                                                      dbuffer),
                                            "Error: dalpha is nullptr");
    verify_hipsparse_status_invalid_pointer(hipsparseXcsrsm2_analysis(handle,
                                                                      0,
                                                                      transA,
                                                                      transB,
                                                                      m,
                                                                      nrhs,
                                                                      nnz,
                                                                      &h_alpha,
                                                                      descr,
                                                                      dval,
                                                                      (int*)nullptr,
                                                                      dcol,
                                                                      dB,
                                                                      safe_size,
                                                                      info,
                                                                      policy,
                                                                      dbuffer),
                                            "Error: dptr is nullptr");
    verify_hipsparse_status_invalid_pointer(hipsparseXcsrsm2_analysis(handle,
                                                                      0,
                                                                      transA,
                                                                      transB,
                                                                      m,
                                                                      nrhs,
                                                                      nnz,
                                                                      &h_alpha,
                                                                      descr,
                                                                      dval,
                                                                      dptr,
                                                                      (int*)nullptr,
                                                                      dB,
                                                                      safe_size,
                                                                      info,
                                                                      policy,
                                                                      dbuffer),
                                            "Error: dcol is nullptr");
    verify_hipsparse_status_invalid_pointer(hipsparseXcsrsm2_analysis(handle,
                                                                      0,
                                                                      transA,
                                                                      transB,
                                                                      m,
                                                                      nrhs,
                                                                      nnz,
                                                                      &h_alpha,
                                                                      descr,
                                                                      (T*)nullptr,
                                                                      dptr,
                                                                      dcol,
                                                                      dB,
                                                                      safe_size,
                                                                      info,
                                                                      policy,
                                                                      dbuffer),
                                            "Error: dval is nullptr");
    verify_hipsparse_status_invalid_pointer(hipsparseXcsrsm2_analysis(handle,
                                                                      0,
                                                                      transA,
                                                                      transB,
                                                                      m,
                                                                      nrhs,
                                                                      nnz,
                                                                      &h_alpha,
                                                                      descr,
                                                                      dval,
                                                                      dptr,
                                                                      dcol,
                                                                      dB,
                                                                      safe_size,
                                                                      info,
                                                                      policy,
                                                                      (void*)nullptr),
                                            "Error: dbuffer is nullptr");
    verify_hipsparse_status_invalid_pointer(hipsparseXcsrsm2_analysis(handle,
                                                                      0,
                                                                      transA,
                                                                      transB,
                                                                      m,
                                                                      nrhs,
                                                                      nnz,
                                                                      &h_alpha,
                                                                      (hipsparseMatDescr_t) nullptr,
                                                                      dval,
                                                                      dptr,
                                                                      dcol,
                                                                      dB,
                                                                      safe_size,
                                                                      info,
                                                                      policy,
                                                                      dbuffer),
                                            "Error: descr is nullptr");
    verify_hipsparse_status_invalid_pointer(hipsparseXcsrsm2_analysis(handle,
                                                                      0,
                                                                      transA,
                                                                      transB,
                                                                      m,
                                                                      nrhs,
                                                                      nnz,
                                                                      &h_alpha,
                                                                      descr,
                                                                      dval,
                                                                      dptr,
                                                                      dcol,
                                                                      (T*)nullptr,
                                                                      safe_size,
                                                                      info,
                                                                      policy,
                                                                      dbuffer),
                                            "Error: dB is nullptr");
    verify_hipsparse_status_invalid_pointer(hipsparseXcsrsm2_analysis(handle,
                                                                      0,
                                                                      transA,
                                                                      transB,
                                                                      m,
                                                                      nrhs,
                                                                      nnz,
                                                                      &h_alpha,
                                                                      descr,
                                                                      dval,
                                                                      dptr,
                                                                      dcol,
                                                                      dB,
                                                                      safe_size,
                                                                      (csrsm2Info_t) nullptr,
                                                                      policy,
                                                                      dbuffer),
                                            "Error: info is nullptr");
    verify_hipsparse_status_invalid_handle(hipsparseXcsrsm2_analysis((hipsparseHandle_t) nullptr,
                                                                     0,
                                                                     transA,
                                                                     transB,
                                                                     m,
                                                                     nrhs,
                                                                     nnz,
                                                                     &h_alpha,
                                                                     descr,
                                                                     dval,
                                                                     dptr,
                                                                     dcol,
                                                                     dB,
                                                                     safe_size,
                                                                     info,
                                                                     policy,
                                                                     dbuffer));

    verify_hipsparse_status_invalid_pointer(hipsparseXcsrsm2_solve(handle,
                                                                   0,
                                                                   transA,
                                                                   transB,
                                                                   m,
                                                                   nrhs,
                                                                   nnz,
                                                                   &h_alpha,
                                                                   descr,
                                                                   dval,
                                                                   (int*)nullptr,
                                                                   dcol,
                                                                   dB,
                                                                   safe_size,
                                                                   info,
                                                                   policy,
                                                                   dbuffer),
                                            "Error: dptr is nullptr");
    verify_hipsparse_status_invalid_pointer(hipsparseXcsrsm2_solve(handle,
                                                                   0,
                                                                   transA,
                                                                   transB,
                                                                   m,
                                                                   nrhs,
                                                                   nnz,
                                                                   &h_alpha,
                                                                   descr,
                                                                   dval,
                                                                   dptr,
                                                                   (int*)nullptr,
                                                                   dB,
                                                                   safe_size,
                                                                   info,
                                                                   policy,
                                                                   dbuffer),
                                            "Error: dcol is nullptr");
    verify_hipsparse_status_invalid_pointer(hipsparseXcsrsm2_solve(handle,
                                                                   0,
                                                                   transA,
                                                                   transB,
                                                                   m,
                                                                   nrhs,
                                                                   nnz,
                                                                   &h_alpha,
                                                                   descr,
                                                                   (T*)nullptr,
                                                                   dptr,
                                                                   dcol,
                                                                   dB,
                                                                   safe_size,
                                                                   info,
                                                                   policy,
                                                                   dbuffer),
                                            "Error: dval is nullptr");
    verify_hipsparse_status_invalid_pointer(hipsparseXcsrsm2_solve(handle,
                                                                   0,
                                                                   transA,
                                                                   transB,
                                                                   m,
                                                                   nrhs,
                                                                   nnz,
                                                                   &h_alpha,
                                                                   descr,
                                                                   dval,
                                                                   dptr,
                                                                   dcol,
                                                                   (T*)nullptr,
                                                                   safe_size,
                                                                   info,
                                                                   policy,
                                                                   dbuffer),
                                            "Error: dB is nullptr");
    verify_hipsparse_status_invalid_pointer(hipsparseXcsrsm2_solve(handle,
                                                                   0,
                                                                   transA,
                                                                   transB,
                                                                   m,
                                                                   nrhs,
                                                                   nnz,
                                                                   (T*)nullptr,
                                                                   descr,
                                                                   dval,
                                                                   dptr,
                                                                   dcol,
                                                                   dB,
                                                                   safe_size,
                                                                   info,
                                                                   policy,
                                                                   dbuffer),
                                            "Error: alpha is nullptr");
    verify_hipsparse_status_invalid_pointer(hipsparseXcsrsm2_solve(handle,
                                                                   0,
                                                                   transA,
                                                                   transB,
                                                                   m,
                                                                   nrhs,
                                                                   nnz,
                                                                   &h_alpha,
                                                                   descr,
                                                                   dval,
                                                                   dptr,
                                                                   dcol,
                                                                   dB,
                                                                   safe_size,
                                                                   info,
                                                                   policy,
                                                                   (void*)nullptr),
                                            "Error: dbuffer is nullptr");
    verify_hipsparse_status_invalid_pointer(hipsparseXcsrsm2_solve(handle,
                                                                   0,
                                                                   transA,
                                                                   transB,
                                                                   m,
                                                                   nrhs,
                                                                   nnz,
                                                                   &h_alpha,
                                                                   (hipsparseMatDescr_t) nullptr,
                                                                   dval,
                                                                   dptr,
                                                                   dcol,
                                                                   dB,
                                                                   safe_size,
                                                                   info,
                                                                   policy,
                                                                   dbuffer),
                                            "Error: descr is nullptr");
    verify_hipsparse_status_invalid_pointer(hipsparseXcsrsm2_solve(handle,
                                                                   0,
                                                                   transA,
                                                                   transB,
                                                                   m,
                                                                   nrhs,
                                                                   nnz,
                                                                   &h_alpha,
                                                                   descr,
                                                                   dval,
                                                                   dptr,
                                                                   dcol,
                                                                   dB,
                                                                   safe_size,
                                                                   (csrsm2Info_t) nullptr,
                                                                   policy,
                                                                   dbuffer),
                                            "Error: info is nullptr");
    verify_hipsparse_status_invalid_handle(hipsparseXcsrsm2_solve((hipsparseHandle_t) nullptr,
                                                                  0,
                                                                  transA,
                                                                  transB,
                                                                  m,
                                                                  nrhs,
                                                                  nnz,
                                                                  &h_alpha,
                                                                  descr,
                                                                  dval,
                                                                  dptr,
                                                                  dcol,
                                                                  dB,
                                                                  safe_size,
                                                                  info,
                                                                  policy,
                                                                  dbuffer));

    verify_hipsparse_status_invalid_pointer(hipsparseXcsrsm2_zeroPivot(handle, info, (int*)nullptr),
                                            "Error: position is nullptr");
    verify_hipsparse_status_invalid_pointer(
        hipsparseXcsrsm2_zeroPivot(handle, (csrsm2Info_t) nullptr, &position),
        "Error: info is nullptr");
    verify_hipsparse_status_invalid_handle(
        hipsparseXcsrsm2_zeroPivot((hipsparseHandle_t) nullptr, info, &position));
#endif
}

template <typename T>
hipsparseStatus_t testing_csrsm2(Arguments argus)
{
#if(!defined(CUDART_VERSION) || CUDART_VERSION < 12000)
    int                    m        = argus.M;
    int                    nrhs     = argus.N;
    hipsparseIndexBase_t   idx_base = argus.baseA;
    hipsparseOperation_t   transA   = argus.transA;
    hipsparseOperation_t   transB   = argus.transB;
    hipsparseDiagType_t    diag     = argus.diag_type;
    hipsparseFillMode_t    uplo     = argus.fill_mode;
    hipsparseSolvePolicy_t policy   = argus.solve_policy;
    T                      h_alpha  = make_DataType<T>(argus.alpha);
    std::string            filename = argus.filename;

    std::unique_ptr<handle_struct> unique_ptr_handle(new handle_struct);
    hipsparseHandle_t              handle = unique_ptr_handle->handle;

    std::unique_ptr<descr_struct> unique_ptr_descr(new descr_struct);
    hipsparseMatDescr_t           descr = unique_ptr_descr->descr;

    std::unique_ptr<csrsm2_struct> unique_ptr_csrsm2_info(new csrsm2_struct);
    csrsm2Info_t                   info = unique_ptr_csrsm2_info->info;

    // Set matrix index base
    CHECK_HIPSPARSE_ERROR(hipsparseSetMatIndexBase(descr, idx_base));

    // Set matrix diag type
    CHECK_HIPSPARSE_ERROR(hipsparseSetMatDiagType(descr, diag));

    // Set matrix fill mode
    CHECK_HIPSPARSE_ERROR(hipsparseSetMatFillMode(descr, uplo));

    srand(12345ULL);

    // Host structures
    std::vector<int> hcsr_row_ptr;
    std::vector<int> hcsr_col_ind;
    std::vector<T>   hcsr_val;

    // Read or construct CSR matrix
    int nnz = 0;
    if(!generate_csr_matrix(filename, m, m, nnz, hcsr_row_ptr, hcsr_col_ind, hcsr_val, idx_base))
    {
        fprintf(stderr, "Cannot open [read] %s\ncol", filename.c_str());
        return HIPSPARSE_STATUS_INTERNAL_ERROR;
    }

    int ldb = (transB == HIPSPARSE_OPERATION_NON_TRANSPOSE) ? m : nrhs;

    std::vector<T> hB_1(m * nrhs);
    std::vector<T> hB_2(m * nrhs);
    std::vector<T> hB_gold(m * nrhs);

    int h_analysis_pivot_gold;
    int h_analysis_pivot_1;
    int h_analysis_pivot_2;
    int h_solve_pivot_gold;
    int h_solve_pivot_1;
    int h_solve_pivot_2;

    hipsparseInit<T>(hB_1, 1, m * nrhs);
    hB_2    = hB_1;
    hB_gold = hB_1;

    // Allocate memory on device
    auto dptr_managed    = hipsparse_unique_ptr{device_malloc(sizeof(int) * (m + 1)), device_free};
    auto dcol_managed    = hipsparse_unique_ptr{device_malloc(sizeof(int) * nnz), device_free};
    auto dval_managed    = hipsparse_unique_ptr{device_malloc(sizeof(T) * nnz), device_free};
    auto dB_1_managed    = hipsparse_unique_ptr{device_malloc(sizeof(T) * m * nrhs), device_free};
    auto dB_2_managed    = hipsparse_unique_ptr{device_malloc(sizeof(T) * m * nrhs), device_free};
    auto d_alpha_managed = hipsparse_unique_ptr{device_malloc(sizeof(T)), device_free};
    auto d_analysis_pivot_2_managed = hipsparse_unique_ptr{device_malloc(sizeof(int)), device_free};
    auto d_solve_pivot_2_managed    = hipsparse_unique_ptr{device_malloc(sizeof(int)), device_free};

    int* dptr               = (int*)dptr_managed.get();
    int* dcol               = (int*)dcol_managed.get();
    T*   dval               = (T*)dval_managed.get();
    T*   dB_1               = (T*)dB_1_managed.get();
    T*   dB_2               = (T*)dB_2_managed.get();
    T*   d_alpha            = (T*)d_alpha_managed.get();
    int* d_analysis_pivot_2 = (int*)d_analysis_pivot_2_managed.get();
    int* d_solve_pivot_2    = (int*)d_solve_pivot_2_managed.get();

    // copy data from CPU to device
    CHECK_HIP_ERROR(
        hipMemcpy(dptr, hcsr_row_ptr.data(), sizeof(int) * (m + 1), hipMemcpyHostToDevice));
    CHECK_HIP_ERROR(hipMemcpy(dcol, hcsr_col_ind.data(), sizeof(int) * nnz, hipMemcpyHostToDevice));
    CHECK_HIP_ERROR(hipMemcpy(dval, hcsr_val.data(), sizeof(T) * nnz, hipMemcpyHostToDevice));
    CHECK_HIP_ERROR(hipMemcpy(dB_1, hB_1.data(), sizeof(T) * m * nrhs, hipMemcpyHostToDevice));
    CHECK_HIP_ERROR(hipMemcpy(d_alpha, &h_alpha, sizeof(T), hipMemcpyHostToDevice));

    // Obtain csrsm2 buffer size
    size_t bufferSize;
    CHECK_HIPSPARSE_ERROR(hipsparseXcsrsm2_bufferSizeExt(handle,
                                                         0,
                                                         transA,
                                                         transB,
                                                         m,
                                                         nrhs,
                                                         nnz,
                                                         &h_alpha,
                                                         descr,
                                                         dval,
                                                         dptr,
                                                         dcol,
                                                         dB_1,
                                                         ldb,
                                                         info,
                                                         policy,
                                                         &bufferSize));

    // Allocate buffer on the device
    auto dbuffer_managed
        = hipsparse_unique_ptr{device_malloc(sizeof(char) * bufferSize), device_free};

    void* dbuffer = (void*)dbuffer_managed.get();

    hipsparseStatus_t status_analysis_1;
    hipsparseStatus_t status_analysis_2;
    hipsparseStatus_t status_solve_1;
    hipsparseStatus_t status_solve_2;

    CHECK_HIP_ERROR(hipMemcpy(dB_2, hB_2.data(), sizeof(T) * m * nrhs, hipMemcpyHostToDevice));

    // csrsm2 analysis - host mode
    CHECK_HIPSPARSE_ERROR(hipsparseSetPointerMode(handle, HIPSPARSE_POINTER_MODE_HOST));
    CHECK_HIPSPARSE_ERROR(hipsparseXcsrsm2_analysis(handle,
                                                    0,
                                                    transA,
                                                    transB,
                                                    m,
                                                    nrhs,
                                                    nnz,
                                                    &h_alpha,
                                                    descr,
                                                    dval,
                                                    dptr,
                                                    dcol,
                                                    dB_1,
                                                    ldb,
                                                    info,
                                                    policy,
                                                    dbuffer));

    // Get pivot
    status_analysis_1 = hipsparseXcsrsm2_zeroPivot(handle, info, &h_analysis_pivot_1);
    if(h_analysis_pivot_1 != -1)
    {
        verify_hipsparse_status_zero_pivot(status_analysis_1,
                                           "expected HIPSPARSE_STATUS_ZERO_PIVOT");
    }

    // csrsm2 analysis - device mode
    CHECK_HIPSPARSE_ERROR(hipsparseSetPointerMode(handle, HIPSPARSE_POINTER_MODE_DEVICE));
    CHECK_HIPSPARSE_ERROR(hipsparseXcsrsm2_analysis(handle,
                                                    0,
                                                    transA,
                                                    transB,
                                                    m,
                                                    nrhs,
                                                    nnz,
                                                    d_alpha,
                                                    descr,
                                                    dval,
                                                    dptr,
                                                    dcol,
                                                    dB_2,
                                                    ldb,
                                                    info,
                                                    policy,
                                                    dbuffer));

    // Get pivot
    status_analysis_2 = hipsparseXcsrsm2_zeroPivot(handle, info, d_analysis_pivot_2);
    if(h_analysis_pivot_1 != -1)
    {
        verify_hipsparse_status_zero_pivot(status_analysis_2,
                                           "expected HIPSPARSE_STATUS_ZERO_PIVOT");
    }

    if(argus.unit_check)
    {
        // csrsm2 solve - host mode
        CHECK_HIPSPARSE_ERROR(hipsparseSetPointerMode(handle, HIPSPARSE_POINTER_MODE_HOST));
        CHECK_HIPSPARSE_ERROR(hipsparseXcsrsm2_solve(handle,
                                                     0,
                                                     transA,
                                                     transB,
                                                     m,
                                                     nrhs,
                                                     nnz,
                                                     &h_alpha,
                                                     descr,
                                                     dval,
                                                     dptr,
                                                     dcol,
                                                     dB_1,
                                                     ldb,
                                                     info,
                                                     policy,
                                                     dbuffer));

        // Get pivot
        status_solve_1 = hipsparseXcsrsm2_zeroPivot(handle, info, &h_solve_pivot_1);
        if(h_solve_pivot_1 != -1)
        {
            verify_hipsparse_status_zero_pivot(status_solve_1,
                                               "expected HIPSPARSE_STATUS_ZERO_PIVOT");
        }

        // csrsm2 solve - device mode
        CHECK_HIPSPARSE_ERROR(hipsparseSetPointerMode(handle, HIPSPARSE_POINTER_MODE_DEVICE));
        CHECK_HIPSPARSE_ERROR(hipsparseXcsrsm2_solve(handle,
                                                     0,
                                                     transA,
                                                     transB,
                                                     m,
                                                     nrhs,
                                                     nnz,
                                                     d_alpha,
                                                     descr,
                                                     dval,
                                                     dptr,
                                                     dcol,
                                                     dB_2,
                                                     ldb,
                                                     info,
                                                     policy,
                                                     dbuffer));

        // Get pivot
        status_solve_2 = hipsparseXcsrsm2_zeroPivot(handle, info, d_solve_pivot_2);
        if(h_solve_pivot_1 != -1)
        {
            verify_hipsparse_status_zero_pivot(status_solve_2,
                                               "expected HIPSPARSE_STATUS_ZERO_PIVOT");
        }

        // Copy output from device to CPU
        CHECK_HIP_ERROR(hipMemcpy(hB_1.data(), dB_1, sizeof(T) * m * nrhs, hipMemcpyDeviceToHost));
        CHECK_HIP_ERROR(hipMemcpy(hB_2.data(), dB_2, sizeof(T) * m * nrhs, hipMemcpyDeviceToHost));
        CHECK_HIP_ERROR(
            hipMemcpy(&h_analysis_pivot_2, d_analysis_pivot_2, sizeof(int), hipMemcpyDeviceToHost));
        CHECK_HIP_ERROR(
            hipMemcpy(&h_solve_pivot_2, d_solve_pivot_2, sizeof(int), hipMemcpyDeviceToHost));

        // Host csrsm2
        host_csrsm2(m,
                    nrhs,
                    nnz,
                    transA,
                    transB,
                    h_alpha,
                    hcsr_row_ptr,
                    hcsr_col_ind,
                    hcsr_val,
                    hB_gold,
                    ldb,
                    HIPSPARSE_ORDER_COL,
                    diag,
                    uplo,
                    idx_base,
                    &h_analysis_pivot_gold,
                    &h_solve_pivot_gold);

        // Check pivots
        unit_check_general(1, 1, 1, &h_analysis_pivot_gold, &h_analysis_pivot_1);
        unit_check_general(1, 1, 1, &h_analysis_pivot_gold, &h_analysis_pivot_2);
        unit_check_general(1, 1, 1, &h_solve_pivot_gold, &h_solve_pivot_1);
        unit_check_general(1, 1, 1, &h_solve_pivot_gold, &h_solve_pivot_2);

        // Check solution matrix if no pivot has been found
        if(h_analysis_pivot_gold == -1 && h_solve_pivot_gold == -1)
        {
            unit_check_near(1, m * nrhs, 1, hB_gold.data(), hB_1.data());
            unit_check_near(1, m * nrhs, 1, hB_gold.data(), hB_2.data());
        }
    }

    if(argus.timing)
    {
        int number_cold_calls = 2;
        int number_hot_calls  = argus.iters;

        CHECK_HIPSPARSE_ERROR(hipsparseSetPointerMode(handle, HIPSPARSE_POINTER_MODE_HOST));

        // Warm up
        for(int iter = 0; iter < number_cold_calls; ++iter)
        {
            CHECK_HIPSPARSE_ERROR(hipsparseXcsrsm2_solve(handle,
                                                         0,
                                                         transA,
                                                         transB,
                                                         m,
                                                         nrhs,
                                                         nnz,
                                                         &h_alpha,
                                                         descr,
                                                         dval,
                                                         dptr,
                                                         dcol,
                                                         dB_1,
                                                         ldb,
                                                         info,
                                                         policy,
                                                         dbuffer));
        }

        double gpu_time_used = get_time_us();

        // Performance run
        for(int iter = 0; iter < number_hot_calls; ++iter)
        {
            CHECK_HIPSPARSE_ERROR(hipsparseXcsrsm2_solve(handle,
                                                         0,
                                                         transA,
                                                         transB,
                                                         m,
                                                         nrhs,
                                                         nnz,
                                                         &h_alpha,
                                                         descr,
                                                         dval,
                                                         dptr,
                                                         dcol,
                                                         dB_1,
                                                         ldb,
                                                         info,
                                                         policy,
                                                         dbuffer));
        }

        gpu_time_used = (get_time_us() - gpu_time_used) / number_hot_calls;

        double gflop_count = csrsv_gflop_count(m, nnz, diag) * nrhs;
        double gbyte_count = csrsv_gbyte_count<T>(m, nnz) * nrhs;

        double gpu_gflops = get_gpu_gflops(gpu_time_used, gflop_count);
        double gpu_gbyte  = get_gpu_gbyte(gpu_time_used, gbyte_count);

        display_timing_info(display_key_t::M,
                            m,
                            display_key_t::nnz,
                            nnz,
                            display_key_t::nrhs,
                            nrhs,
                            display_key_t::alpha,
                            h_alpha,
                            display_key_t::transA,
                            hipsparse_operation2string(transA),
                            display_key_t::transB,
                            hipsparse_operation2string(transB),
                            display_key_t::diag_type,
                            hipsparse_diagtype2string(diag),
                            display_key_t::fill_mode,
                            hipsparse_fillmode2string(uplo),
                            display_key_t::solve_policy,
                            hipsparse_solvepolicy2string(policy),
                            display_key_t::gflops,
                            gpu_gflops,
                            display_key_t::bandwidth,
                            gpu_gbyte,
                            display_key_t::time_ms,
                            get_gpu_time_msec(gpu_time_used));
    }
#endif

    return HIPSPARSE_STATUS_SUCCESS;
}

#endif // TESTING_CSRSM2_HPP
