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TheRock/rocm-libraries/projects/rocsparse/clients/testings/testing_spildlt0.cpp
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

1040 lines
47 KiB
C++

/*! \file */
/* ************************************************************************
* Copyright (C) 2026 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.
*
* ************************************************************************ */
#include "testing_spildlt0.hpp"
#include "rocsparse_clients_objects.hpp"
#include "rocsparse_clients_spmat_descr.hpp"
#include "rocsparse_enum.hpp"
#include "testing.hpp"
// rocsparse_spildlt0_input_diag is deprecated but still exercised here (to check it keeps
// working). Referencing the [[deprecated]] enumerator directly would raise
// -Wdeprecated-declarations under -Wall, so use its integer value instead (mirrors
// deprecated_rocsparse_indextype_u16 in the library).
#define deprecated_rocsparse_spildlt0_input_diag static_cast<rocsparse_spildlt0_input>(7)
// Host reference for ILDLt factorization (templated on index types I, J)
template <typename T, typename I, typename J>
static void host_csrildlt0_ref(J M,
const I* __restrict__ csr_row_ptr,
const J* __restrict__ csr_col_ind,
T* __restrict__ csr_val,
floating_data_t<T>* __restrict__ diag,
rocsparse_index_base base,
int64_t* __restrict__ struct_pivot,
int64_t* __restrict__ numeric_pivot,
int64_t* __restrict__ singular_pivot,
double tol)
{
*struct_pivot = -1;
*numeric_pivot = -1;
*singular_pivot = -1;
std::vector<I> diag_offset(M, -1);
std::vector<I> nnz_entries(M, -1);
for(J ai = 0; ai < M; ++ai)
{
const I row_begin = csr_row_ptr[ai] - base;
const I row_end = csr_row_ptr[ai + 1] - base;
J j;
for(j = row_begin; j < row_end; ++j)
{
nnz_entries[csr_col_ind[j] - base] = j;
}
floating_data_t<T> diag_sum = static_cast<floating_data_t<T>>(0);
bool has_diag = false;
for(j = row_begin; j < row_end; ++j)
{
const J col_j = csr_col_ind[j] - base;
if(col_j == ai)
{
has_diag = true;
break;
}
if(col_j > ai)
{
break;
}
const floating_data_t<T> d_j = diag[col_j];
if(std::abs(d_j) <= tol)
{
*singular_pivot = (*singular_pivot == -1)
? (col_j + base)
: std::min(*singular_pivot, int64_t(col_j + base));
}
if(d_j == static_cast<floating_data_t<T>>(0))
{
*numeric_pivot = (*numeric_pivot == -1)
? (col_j + base)
: std::min(*numeric_pivot, int64_t(col_j + base));
continue;
}
const floating_data_t<T> inv_d_j = static_cast<floating_data_t<T>>(1) / d_j;
const I row_begin_j = csr_row_ptr[col_j] - base;
const I row_diag_j = diag_offset[col_j];
T local_sum = static_cast<T>(0);
for(I k = row_begin_j; k < row_diag_j; ++k)
{
const J col_k = csr_col_ind[k] - base;
if(nnz_entries[col_k] != -1)
{
const I idx = nnz_entries[col_k];
// L_{ai,k} * D_k * conj(L_{col_j,k})
local_sum = std::fma(csr_val[idx],
static_cast<T>(diag[col_k]) * rocsparse_conj(csr_val[k]),
local_sum);
}
}
const T val_j = (csr_val[j] - local_sum) * static_cast<T>(inv_d_j);
csr_val[j] = val_j;
// Accumulate |L_{ai,col_j}|^2 * D_{col_j} (real)
const floating_data_t<T> re_l = std::real(val_j);
const floating_data_t<T> im_l = std::imag(val_j);
diag_sum = std::fma(std::fma(re_l, re_l, im_l * im_l), d_j, diag_sum);
}
if(!has_diag)
{
*struct_pivot
= (*struct_pivot == -1) ? (ai + base) : std::min(*struct_pivot, int64_t(ai + base));
*numeric_pivot = (*numeric_pivot == -1) ? (ai + base)
: std::min(*numeric_pivot, int64_t(ai + base));
}
else
{
diag_offset[ai] = j;
const floating_data_t<T> d_i = std::real(csr_val[j]) - diag_sum;
if(std::abs(d_i) <= tol)
{
*singular_pivot = (*singular_pivot == -1)
? (ai + base)
: std::min(*singular_pivot, int64_t(ai + base));
}
if(d_i == static_cast<floating_data_t<T>>(0))
{
*numeric_pivot = (*numeric_pivot == -1)
? (ai + base)
: std::min(*numeric_pivot, int64_t(ai + base));
}
diag[ai] = d_i;
csr_val[j] = static_cast<T>(d_i); // D stored in-place on L's (implicit unit) diagonal
}
for(j = row_begin; j < row_end; ++j)
{
nnz_entries[csr_col_ind[j] - base] = -1;
}
}
if(*struct_pivot != -1)
{
*numeric_pivot
= (*numeric_pivot == -1) ? (*struct_pivot) : std::min(*numeric_pivot, *struct_pivot);
}
if(*numeric_pivot != -1)
{
*singular_pivot = (*singular_pivot == -1) ? (*numeric_pivot)
: std::min(*singular_pivot, *numeric_pivot);
}
}
namespace rocsparse_clients
{
class spildlt0_descr
{
private:
rocsparse_handle m_handle{};
rocsparse_spildlt0_descr m_descr{};
public:
host_dense_vector<int64_t> m_cpu_symbolic_singularity_position{};
host_dense_vector<int64_t> m_cpu_numeric_exact_singularity_position{};
host_dense_vector<int64_t> m_cpu_numeric_near_singularity_position{};
host_dense_vector<int64_t> m_host_symbolic_singularity_position{};
host_dense_vector<int64_t> m_host_numeric_singularity_position{};
device_dense_vector<int64_t> m_device_symbolic_singularity_position{};
device_dense_vector<int64_t> m_device_numeric_singularity_position{};
spildlt0_descr(rocsparse_handle handle, int64_t batch_count)
: m_handle(handle)
, m_cpu_symbolic_singularity_position(batch_count)
, m_cpu_numeric_exact_singularity_position(batch_count)
, m_cpu_numeric_near_singularity_position(batch_count)
, m_host_symbolic_singularity_position(batch_count)
, m_host_numeric_singularity_position(batch_count)
, m_device_symbolic_singularity_position(batch_count)
, m_device_numeric_singularity_position(batch_count)
{
ROCSPARSE_CLIENTS_ROUTINE_TRACE;
rocsparse_error* p_error = nullptr;
const rocsparse_status status
= rocsparse_spildlt0_descr_create(handle, &this->m_descr, p_error);
if(status != rocsparse_status_success)
{
throw(status);
}
}
~spildlt0_descr()
{
ROCSPARSE_CLIENTS_ROUTINE_TRACE;
rocsparse_error* p_error = nullptr;
std::ignore = rocsparse_spildlt0_descr_destroy(this->m_handle, this->m_descr, p_error);
}
inline operator rocsparse_spildlt0_descr&()
{
return this->m_descr;
}
inline operator const rocsparse_spildlt0_descr&() const
{
return this->m_descr;
}
};
}
template <typename I, typename J, typename T>
void testing_spildlt0_set_input_bad_arg(const Arguments& arg)
{
rocsparse_error* p_error = nullptr;
rocsparse_local_handle local_handle;
rocsparse_spildlt0_descr spildlt0_descr = (rocsparse_spildlt0_descr)0x4;
rocsparse_handle handle = local_handle;
static constexpr int nex = 2;
static const int ex[nex] = {4, 5};
const rocsparse_spildlt0_input input = rocsparse_spildlt0_input_alg;
void* data = (void*)0x4;
size_t data_size_in_bytes = sizeof(input);
select_bad_arg_analysis(rocsparse_spildlt0_set_input,
nex,
ex,
handle, //0
spildlt0_descr, //1
input, //2
data, //3
data_size_in_bytes, //4
p_error); // 5
CHECK_ROCSPARSE_ERROR(rocsparse_spildlt0_descr_create(handle, &spildlt0_descr, p_error));
for(auto e : {rocsparse_spildlt0_input_alg,
rocsparse_spildlt0_input_analysis_policy,
rocsparse_spildlt0_input_compute_datatype,
rocsparse_spildlt0_input_boost_enable,
rocsparse_spildlt0_input_boost_tolerance,
rocsparse_spildlt0_input_boost_value,
rocsparse_spildlt0_input_singularity_tolerance,
deprecated_rocsparse_spildlt0_input_diag})
{
switch(e)
{
case rocsparse_spildlt0_input_alg:
case rocsparse_spildlt0_input_analysis_policy:
case rocsparse_spildlt0_input_compute_datatype:
case rocsparse_spildlt0_input_boost_enable:
case rocsparse_spildlt0_input_boost_tolerance:
case rocsparse_spildlt0_input_boost_value:
case rocsparse_spildlt0_input_singularity_tolerance:
case deprecated_rocsparse_spildlt0_input_diag:
{
EXPECT_ROCSPARSE_STATUS(
rocsparse_spildlt0_set_input(handle, spildlt0_descr, e, data, 0, p_error),
rocsparse_status_invalid_value);
break;
}
}
}
//
// Singularity tolerance must be double
//
EXPECT_ROCSPARSE_STATUS(
rocsparse_spildlt0_set_input(handle,
spildlt0_descr,
rocsparse_spildlt0_input_singularity_tolerance,
data,
sizeof(float),
p_error),
rocsparse_status_invalid_value);
CHECK_ROCSPARSE_ERROR(rocsparse_spildlt0_descr_destroy(handle, spildlt0_descr, p_error));
}
template <typename I, typename J, typename T>
void testing_spildlt0_buffer_size_bad_arg(const Arguments& arg)
{
rocsparse_local_handle local_handle;
rocsparse_handle handle = local_handle;
rocsparse_spildlt0_descr spildlt0_descr = (rocsparse_spildlt0_descr)0x4;
rocsparse_spmat_descr A = (rocsparse_spmat_descr)0x4;
rocsparse_spmat_descr P = (rocsparse_spmat_descr)0x4;
rocsparse_spildlt0_stage spildlt0_stage = rocsparse_spildlt0_stage_analysis;
rocsparse_error* p_error = nullptr;
{
size_t* p_buffer_size_in_bytes = (size_t*)0x4;
static constexpr int nex = 1;
static const int ex[nex] = {6};
select_bad_arg_analysis(rocsparse_spildlt0_buffer_size,
nex,
ex,
handle,
spildlt0_descr,
A,
P,
spildlt0_stage,
p_buffer_size_in_bytes,
p_error);
}
}
template <typename I, typename J, typename T>
void testing_spildlt0_get_output_bad_arg(const Arguments& arg)
{
rocsparse_local_handle local_handle;
rocsparse_handle handle = local_handle;
rocsparse_spildlt0_descr spildlt0_descr = (rocsparse_spildlt0_descr)0x4;
rocsparse_error* p_error = nullptr;
static constexpr int nex = 2;
static const int ex[nex] = {4, 5};
size_t data_size_in_bytes = sizeof(int64_t);
void* data = (void*)0x4;
rocsparse_spildlt0_output output = rocsparse_spildlt0_output_singularity_position;
select_bad_arg_analysis(rocsparse_spildlt0_get_output,
nex,
ex,
handle,
spildlt0_descr,
output,
data,
data_size_in_bytes,
p_error);
}
template <typename I, typename J, typename T>
void testing_spildlt0_analysis_bad_arg(const Arguments& arg)
{
rocsparse_local_handle local_handle;
rocsparse_handle handle = local_handle;
rocsparse_spildlt0_descr spildlt0_descr = (rocsparse_spildlt0_descr)0x4;
rocsparse_spmat_descr A = (rocsparse_spmat_descr)0x4;
rocsparse_spmat_descr P = (rocsparse_spmat_descr)0x4;
rocsparse_spildlt0_stage spildlt0_stage = rocsparse_spildlt0_stage_analysis;
void* buffer = (void*)0x4;
rocsparse_error* p_error = nullptr;
{
const size_t buffer_size_in_bytes = 1;
#define PARAMS handle, spildlt0_descr, A, P, spildlt0_stage, buffer_size_in_bytes, buffer, p_error
static constexpr int nex = 2;
static const int ex[nex] = {5, 7};
select_bad_arg_analysis(rocsparse_spildlt0, nex, ex, PARAMS);
#undef PARAMS
}
}
template <typename I, typename J, typename T>
void testing_spildlt0_bad_arg(const Arguments& arg)
{
testing_spildlt0_buffer_size_bad_arg<I, J, T>(arg);
testing_spildlt0_analysis_bad_arg<I, J, T>(arg);
testing_spildlt0_set_input_bad_arg<I, J, T>(arg);
testing_spildlt0_get_output_bad_arg<I, J, T>(arg);
rocsparse_error* p_error = nullptr;
rocsparse_local_handle local_handle;
rocsparse_handle handle = local_handle;
//
// Now get a concrete example and continue.
//
rocsparse_clients::csr_tridiag_matrix_t<T, I, J> A(4);
rocsparse_spmat_descr P = A;
host_scalar<double> hsingularity_tolerance(1);
hsingularity_tolerance[0] = 1.0e-5;
device_scalar<double> dsingularity_tolerance(hsingularity_tolerance);
// Allocate a diag vector on device (size = 4, same as tridiag matrix dimension)
device_dense_vector<floating_data_t<T>> d_diag(4);
for(auto analysis_policy : {rocsparse_analysis_policy_force, rocsparse_analysis_policy_reuse})
{
rocsparse_clients::spildlt0_descr spildlt0_descr(handle, 1);
const rocsparse_spildlt0_alg alg = rocsparse_spildlt0_alg_default;
const rocsparse_datatype compute_datatype = get_datatype<T>();
CHECK_ROCSPARSE_ERROR(rocsparse_spildlt0_set_input(
handle, spildlt0_descr, rocsparse_spildlt0_input_alg, &alg, sizeof(alg), p_error));
CHECK_ROCSPARSE_ERROR(rocsparse_spildlt0_set_input(handle,
spildlt0_descr,
rocsparse_spildlt0_input_analysis_policy,
&analysis_policy,
sizeof(analysis_policy),
p_error));
CHECK_ROCSPARSE_ERROR(
rocsparse_spildlt0_set_input(handle,
spildlt0_descr,
rocsparse_spildlt0_input_compute_datatype,
&compute_datatype,
sizeof(compute_datatype),
p_error));
// Set the diag device pointer
void* d_diag_ptr = (void*)d_diag;
CHECK_ROCSPARSE_ERROR(rocsparse_spildlt0_set_input(handle,
spildlt0_descr,
deprecated_rocsparse_spildlt0_input_diag,
&d_diag_ptr,
sizeof(d_diag_ptr),
p_error));
size_t buffer_size;
CHECK_ROCSPARSE_ERROR(rocsparse_spildlt0_buffer_size(handle,
spildlt0_descr,
A,
P,
rocsparse_spildlt0_stage_analysis,
&buffer_size,
p_error));
hipStream_t stream;
CHECK_ROCSPARSE_ERROR(rocsparse_get_stream(handle, &stream));
{
device_dense_vector<char> buffer(buffer_size);
CHECK_HIP_ERROR(hipMemset(buffer, 255 - 1, buffer_size));
//
// Call compute before analysis.
//
EXPECT_ROCSPARSE_STATUS(rocsparse_status_invalid_value,
rocsparse_spildlt0(handle,
spildlt0_descr,
A,
P,
rocsparse_spildlt0_stage_compute,
buffer_size,
buffer,
p_error));
//
// Call analysis.
//
CHECK_ROCSPARSE_ERROR(rocsparse_spildlt0(handle,
spildlt0_descr,
A,
P,
rocsparse_spildlt0_stage_analysis,
buffer_size,
buffer,
p_error));
for(auto input : {rocsparse_spildlt0_input_alg,
rocsparse_spildlt0_input_analysis_policy,
rocsparse_spildlt0_input_compute_datatype,
rocsparse_spildlt0_input_boost_enable,
rocsparse_spildlt0_input_boost_tolerance,
rocsparse_spildlt0_input_boost_value,
rocsparse_spildlt0_input_singularity_tolerance,
deprecated_rocsparse_spildlt0_input_diag})
{
switch(input)
{
case rocsparse_spildlt0_input_alg:
case rocsparse_spildlt0_input_compute_datatype:
case rocsparse_spildlt0_input_analysis_policy:
{
EXPECT_ROCSPARSE_STATUS(
rocsparse_status_invalid_value,
rocsparse_spildlt0_set_input(
handle, spildlt0_descr, input, (void*)0x4, sizeof(int64_t), p_error));
break;
}
case rocsparse_spildlt0_input_singularity_tolerance:
{
EXPECT_ROCSPARSE_STATUS(
rocsparse_status_invalid_value,
rocsparse_spildlt0_set_input(
handle, spildlt0_descr, input, (void*)0x4, sizeof(float), p_error));
CHECK_ROCSPARSE_ERROR(
rocsparse_set_pointer_mode(handle, rocsparse_pointer_mode_host));
CHECK_ROCSPARSE_ERROR(
rocsparse_spildlt0_set_input(handle,
spildlt0_descr,
rocsparse_spildlt0_input_singularity_tolerance,
hsingularity_tolerance,
sizeof(double),
p_error));
CHECK_ROCSPARSE_ERROR(
rocsparse_set_pointer_mode(handle, rocsparse_pointer_mode_device));
CHECK_ROCSPARSE_ERROR(
rocsparse_spildlt0_set_input(handle,
spildlt0_descr,
rocsparse_spildlt0_input_singularity_tolerance,
dsingularity_tolerance,
sizeof(double),
p_error));
break;
}
case rocsparse_spildlt0_input_boost_enable:
case rocsparse_spildlt0_input_boost_tolerance:
case rocsparse_spildlt0_input_boost_value:
case deprecated_rocsparse_spildlt0_input_diag:
{
break;
}
}
}
//
// Call analysis twice.
//
EXPECT_ROCSPARSE_STATUS(rocsparse_status_invalid_value,
rocsparse_spildlt0(handle,
spildlt0_descr,
A,
P,
rocsparse_spildlt0_stage_analysis,
buffer_size,
buffer,
p_error));
}
{
CHECK_ROCSPARSE_ERROR(rocsparse_spildlt0_buffer_size(handle,
spildlt0_descr,
A,
P,
rocsparse_spildlt0_stage_compute,
&buffer_size,
p_error));
device_dense_vector<char> buffer(buffer_size);
CHECK_HIP_ERROR(hipMemset(buffer, 255 - 1, buffer_size));
CHECK_ROCSPARSE_ERROR(rocsparse_set_pointer_mode(handle, rocsparse_pointer_mode_host));
CHECK_ROCSPARSE_ERROR(
rocsparse_spildlt0_set_input(handle,
spildlt0_descr,
rocsparse_spildlt0_input_singularity_tolerance,
hsingularity_tolerance,
sizeof(double),
p_error));
//
// Call compute.
//
CHECK_ROCSPARSE_ERROR(rocsparse_spildlt0(handle,
spildlt0_descr,
A,
P,
rocsparse_spildlt0_stage_compute,
buffer_size,
buffer,
p_error));
//
// Call analysis after compute.
//
EXPECT_ROCSPARSE_STATUS(rocsparse_status_invalid_value,
rocsparse_spildlt0(handle,
spildlt0_descr,
A,
P,
rocsparse_spildlt0_stage_analysis,
buffer_size,
buffer,
p_error));
CHECK_ROCSPARSE_ERROR(
rocsparse_set_pointer_mode(handle, rocsparse_pointer_mode_device));
CHECK_ROCSPARSE_ERROR(
rocsparse_spildlt0_set_input(handle,
spildlt0_descr,
rocsparse_spildlt0_input_singularity_tolerance,
dsingularity_tolerance,
sizeof(double),
p_error));
//
// Call compute.
//
CHECK_ROCSPARSE_ERROR(rocsparse_spildlt0(handle,
spildlt0_descr,
A,
P,
rocsparse_spildlt0_stage_compute,
buffer_size,
buffer,
p_error));
//
// Call analysis after compute.
//
EXPECT_ROCSPARSE_STATUS(rocsparse_status_invalid_value,
rocsparse_spildlt0(handle,
spildlt0_descr,
A,
P,
rocsparse_spildlt0_stage_analysis,
buffer_size,
buffer,
p_error));
//
// Call compute.
//
CHECK_ROCSPARSE_ERROR(rocsparse_spildlt0(handle,
spildlt0_descr,
A,
P,
rocsparse_spildlt0_stage_compute,
buffer_size,
buffer,
p_error));
CHECK_HIP_ERROR(hipStreamSynchronize(stream));
}
}
}
template <typename I, typename J, typename T>
void testing_spildlt0(const Arguments& arg)
{
rocsparse_error* p_error = nullptr;
if(arg.M != arg.N)
{
return;
}
int64_t batch_count = arg.batch_count;
if(batch_count == -1)
batch_count = 1;
static constexpr const bool full_rank = true;
rocsparse_clients::spmat_descr<T, I, J> A(arg, batch_count, full_rank);
if(false == A.is_square())
{
return;
}
// Only CSR is supported for spildlt0
if(A.get_format() != rocsparse_format_csr)
{
return;
}
rocsparse_local_handle handle(arg);
hipStream_t stream;
CHECK_ROCSPARSE_ERROR(rocsparse_get_stream(handle, &stream));
const int64_t M = A.get_nrows();
rocsparse_clients::spildlt0_descr spildlt0_descr(handle, batch_count);
const rocsparse_spildlt0_alg alg = rocsparse_spildlt0_alg_default;
const rocsparse_analysis_policy analysis_policy = arg.apol;
const rocsparse_datatype compute_datatype = get_datatype<T>();
CHECK_ROCSPARSE_ERROR(rocsparse_spildlt0_set_input(
handle, spildlt0_descr, rocsparse_spildlt0_input_alg, &alg, sizeof(alg), p_error));
CHECK_ROCSPARSE_ERROR(rocsparse_spildlt0_set_input(handle,
spildlt0_descr,
rocsparse_spildlt0_input_analysis_policy,
&analysis_policy,
sizeof(analysis_policy),
p_error));
CHECK_ROCSPARSE_ERROR(rocsparse_spildlt0_set_input(handle,
spildlt0_descr,
rocsparse_spildlt0_input_compute_datatype,
&compute_datatype,
sizeof(compute_datatype),
p_error));
//
// Perform analysis.
//
auto& host_symbolic_pivot = spildlt0_descr.m_host_symbolic_singularity_position;
{
size_t buffer_size_in_bytes = std::numeric_limits<size_t>::max();
CHECK_ROCSPARSE_ERROR(rocsparse_spildlt0_buffer_size(handle,
spildlt0_descr,
A,
A,
rocsparse_spildlt0_stage_analysis,
&buffer_size_in_bytes,
p_error));
device_dense_vector<char> buffer(buffer_size_in_bytes);
CHECK_HIP_ERROR(hipMemset(buffer, 255 - 1, buffer_size_in_bytes));
CHECK_ROCSPARSE_ERROR(rocsparse_spildlt0(handle,
spildlt0_descr,
A,
A,
rocsparse_spildlt0_stage_analysis,
buffer_size_in_bytes,
buffer,
p_error));
CHECK_ROCSPARSE_ERROR(rocsparse_set_pointer_mode(handle, rocsparse_pointer_mode_host));
CHECK_ROCSPARSE_ERROR(
rocsparse_spildlt0_get_output(handle,
spildlt0_descr,
rocsparse_spildlt0_output_singularity_position,
host_symbolic_pivot,
sizeof(int64_t),
p_error));
CHECK_HIP_ERROR(hipStreamSynchronize(stream));
}
auto& device_symbolic_pivot = spildlt0_descr.m_device_symbolic_singularity_position;
auto& host_numeric_pivot = spildlt0_descr.m_host_numeric_singularity_position;
auto& device_numeric_pivot = spildlt0_descr.m_device_numeric_singularity_position;
if(arg.unit_check)
{
CHECK_ROCSPARSE_ERROR(rocsparse_set_pointer_mode(handle, rocsparse_pointer_mode_device));
CHECK_ROCSPARSE_ERROR(
rocsparse_spildlt0_get_output(handle,
spildlt0_descr,
rocsparse_spildlt0_output_singularity_position,
device_symbolic_pivot,
sizeof(int64_t),
p_error));
CHECK_HIP_ERROR(hipStreamSynchronize(stream));
// Check pivot is the same with either host or device mode.
host_symbolic_pivot.unit_check(device_symbolic_pivot);
//
// Perform compute.
//
{
size_t buffer_size_in_bytes = std::numeric_limits<size_t>::max();
CHECK_ROCSPARSE_ERROR(rocsparse_spildlt0_buffer_size(handle,
spildlt0_descr,
A,
A,
rocsparse_spildlt0_stage_compute,
&buffer_size_in_bytes,
p_error));
device_dense_vector<char> buffer(buffer_size_in_bytes);
CHECK_HIP_ERROR(hipMemset(buffer, 255 - 1, buffer_size_in_bytes));
CHECK_ROCSPARSE_ERROR(rocsparse_spildlt0(handle,
spildlt0_descr,
A,
A,
rocsparse_spildlt0_stage_compute,
buffer_size_in_bytes,
buffer,
p_error));
CHECK_ROCSPARSE_ERROR(rocsparse_set_pointer_mode(handle, rocsparse_pointer_mode_host));
CHECK_ROCSPARSE_ERROR(
rocsparse_spildlt0_get_output(handle,
spildlt0_descr,
rocsparse_spildlt0_output_singularity_position,
host_numeric_pivot,
sizeof(int64_t),
p_error));
CHECK_HIP_ERROR(hipStreamSynchronize(stream));
CHECK_ROCSPARSE_ERROR(
rocsparse_set_pointer_mode(handle, rocsparse_pointer_mode_device));
CHECK_ROCSPARSE_ERROR(
rocsparse_spildlt0_get_output(handle,
spildlt0_descr,
rocsparse_spildlt0_output_singularity_position,
device_numeric_pivot,
sizeof(int64_t),
p_error));
CHECK_HIP_ERROR(hipStreamSynchronize(stream));
// Check numeric pivots match.
host_numeric_pivot.unit_check(device_numeric_pivot);
// Perform calculation on host and compare.
{
auto& host_csr = A.template as<rocsparse_format_csr>().host();
// Copy the factored device values back to host for comparison. D is stored
// in-place on L's diagonal, so this single array carries both L and D: the
// value comparison below validates D on the diagonal without any host-side
// gather.
host_vector<T> h_csr_val_gpu(host_csr.val.size());
CHECK_HIP_ERROR(hipMemcpy(h_csr_val_gpu,
A.get_device_values(),
sizeof(T) * host_csr.val.size(),
hipMemcpyDeviceToHost));
// CPU reference (run on a copy of the original host values)
host_vector<T> h_csr_val_ref = host_csr.val;
host_vector<floating_data_t<T>> h_diag_ref(M * batch_count,
static_cast<floating_data_t<T>>(0));
const double singular_pivot_tolerance = 0.0;
auto& cpu_symbolic_pivot = spildlt0_descr.m_cpu_symbolic_singularity_position;
auto& cpu_numeric_near_pivot
= spildlt0_descr.m_cpu_numeric_near_singularity_position;
auto& cpu_numeric_exact_pivot
= spildlt0_descr.m_cpu_numeric_exact_singularity_position;
for(int64_t i = 0; i < batch_count; ++i)
{
host_csrildlt0_ref<T, I, J>(static_cast<J>(host_csr.m),
host_csr.ptr.data(),
host_csr.ind.data(),
h_csr_val_ref.data() + i * A.get_stride(),
h_diag_ref.data() + i * M,
host_csr.base,
cpu_symbolic_pivot + i,
cpu_numeric_exact_pivot + i,
cpu_numeric_near_pivot + i,
singular_pivot_tolerance);
}
for(int64_t j = 0; j < batch_count; ++j)
{
if(cpu_numeric_near_pivot[j] == -1)
{
cpu_numeric_near_pivot[j] = cpu_numeric_exact_pivot[j];
}
else if(cpu_numeric_exact_pivot[j] != -1)
{
cpu_numeric_near_pivot[j]
= std::min(cpu_numeric_near_pivot[j], cpu_numeric_exact_pivot[j]);
}
}
cpu_symbolic_pivot.unit_check(host_symbolic_pivot);
cpu_numeric_near_pivot.unit_check(host_numeric_pivot);
// Check values only when no structural/numeric zero pivot was encountered (all batches).
bool no_pivot = true;
for(int64_t i = 0; i < batch_count; ++i)
{
if(host_symbolic_pivot[i] != -1 || host_numeric_pivot[i] != -1)
{
no_pivot = false;
break;
}
}
if(no_pivot)
{
// For complex types, accumulation error is larger.
constexpr bool is_complex = std::is_same<T, rocsparse_float_complex>::value
|| std::is_same<T, rocsparse_double_complex>::value;
const floating_data_t<T> tol_ildlt
= is_complex
? static_cast<floating_data_t<T>>(100) * default_tolerance<T>::value
: default_tolerance<T>::value;
// Compare L values (off-diagonal CSR entries, plus D on the diagonal). This
// validates D-on-diagonal directly, with nothing gathered on the host.
h_csr_val_ref.near_check(h_csr_val_gpu, tol_ildlt);
// Validate the OPTIONAL external diagonal output vector, which is a *device*
// buffer filled by the kernel (no host round-trip to produce D). Re-run the
// compute with it set to also exercise the per-batch copy: each batch must
// receive its own D into its own m-entry slice (offset b * m).
device_dense_vector<floating_data_t<T>> d_diag(M * batch_count);
{
// Compute is in-place and destructive: restore the original values.
// host_csr.val is still pristine (the reference ran on h_csr_val_ref).
A.get_device_values().transfer_from(host_csr.val);
void* d_diag_ptr = (void*)d_diag;
CHECK_ROCSPARSE_ERROR(
rocsparse_spildlt0_set_input(handle,
spildlt0_descr,
deprecated_rocsparse_spildlt0_input_diag,
&d_diag_ptr,
sizeof(d_diag_ptr),
p_error));
CHECK_ROCSPARSE_ERROR(rocsparse_spildlt0(handle,
spildlt0_descr,
A,
A,
rocsparse_spildlt0_stage_compute,
buffer_size_in_bytes,
buffer,
p_error));
CHECK_HIP_ERROR(hipStreamSynchronize(stream));
}
// Copy the device D vector to host only for the reference comparison.
host_vector<floating_data_t<T>> h_diag_gpu(M * batch_count);
CHECK_HIP_ERROR(hipMemcpy(h_diag_gpu,
d_diag,
sizeof(floating_data_t<T>) * M * batch_count,
hipMemcpyDeviceToHost));
if(ROCSPARSE_REPRODUCIBILITY)
{
rocsparse_reproducibility::save(
"L values", h_csr_val_gpu, "D values", h_diag_gpu);
}
// Every batch's D must land in its own slice of the device vector.
h_diag_ref.near_check(h_diag_gpu, tol_ildlt);
}
}
}
}
if(arg.timing)
{
size_t buffer_size_in_bytes = std::numeric_limits<size_t>::max();
CHECK_ROCSPARSE_ERROR(rocsparse_spildlt0_buffer_size(handle,
spildlt0_descr,
A,
A,
rocsparse_spildlt0_stage_compute,
&buffer_size_in_bytes,
p_error));
device_dense_vector<char> buffer(buffer_size_in_bytes);
CHECK_HIP_ERROR(hipMemset(buffer, 255 - 1, buffer_size_in_bytes));
const int32_t n_cold_calls = 2;
const int32_t n_sub_calls = arg.iters_inner;
const int32_t n_calls = arg.iters;
for(int32_t iter = 0; iter < n_cold_calls; ++iter)
{
A.reinit_values();
CHECK_ROCSPARSE_ERROR(rocsparse_spildlt0(handle,
spildlt0_descr,
A,
A,
rocsparse_spildlt0_stage_compute,
buffer_size_in_bytes,
buffer,
p_error));
CHECK_HIP_ERROR(hipStreamSynchronize(stream));
}
std::vector<double> gpu_time(n_calls);
rocsparse_clients::timer t(stream);
for(int32_t iter = 0; iter < n_calls; ++iter)
{
gpu_time[iter] = 0;
for(int32_t sub_iter = 0; sub_iter < n_sub_calls; ++sub_iter)
{
A.reinit_values();
t.start();
CHECK_ROCSPARSE_ERROR(rocsparse_spildlt0(handle,
spildlt0_descr,
A,
A,
rocsparse_spildlt0_stage_compute,
buffer_size_in_bytes,
buffer,
p_error));
CHECK_HIP_ERROR(hipStreamSynchronize(stream));
const double t_microseconds = (t.stop() * 1000);
gpu_time[iter] += t_microseconds;
}
gpu_time[iter] /= n_sub_calls;
}
std::sort(gpu_time.begin(), gpu_time.end());
const int32_t mid = n_calls / 2;
const double gpu_time_used
= (n_calls % 2 == 0) ? (gpu_time[mid] + gpu_time[mid - 1]) / 2 : gpu_time[mid];
auto& device = A.template as<rocsparse_format_csr>().device();
double gbyte_count = csrildlt0_gbyte_count<T>(device.m, device.nnz);
const double gpu_gbyte = get_gpu_gbyte(gpu_time_used, gbyte_count);
display_timing_info(display_key_t::M,
device.m,
display_key_t::nnz_A,
device.nnz,
display_key_t::bandwidth,
gpu_gbyte,
display_key_t::time_ms,
get_gpu_time_msec(gpu_time_used));
}
}
void testing_spildlt0_extra(const Arguments& arg) {}
#define INSTANTIATE(I, J, T) \
template void testing_spildlt0_bad_arg<I, J, T>(const Arguments& arg); \
template void testing_spildlt0<I, J, T>(const Arguments& arg)
INSTANTIATE(int32_t, int32_t, float);
INSTANTIATE(int32_t, int32_t, double);
INSTANTIATE(int32_t, int32_t, rocsparse_float_complex);
INSTANTIATE(int32_t, int32_t, rocsparse_double_complex);
INSTANTIATE(int64_t, int32_t, float);
INSTANTIATE(int64_t, int32_t, double);
INSTANTIATE(int64_t, int32_t, rocsparse_float_complex);
INSTANTIATE(int64_t, int32_t, rocsparse_double_complex);
INSTANTIATE(int64_t, int64_t, float);
INSTANTIATE(int64_t, int64_t, double);
INSTANTIATE(int64_t, int64_t, rocsparse_float_complex);
INSTANTIATE(int64_t, int64_t, rocsparse_double_complex);
#undef INSTANTIATE