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/*! \file */
/* ************************************************************************
* 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.
*
* ************************************************************************ */
#include <hip/hip_runtime_api.h>
#include <iostream>
#include <rocsparse.h>
#include <vector>
#define HIP_CHECK(stat) \
{ \
if(stat != hipSuccess) \
{ \
std::cerr << "Error: hip error in line " << __LINE__ << std::endl; \
return -1; \
} \
}
#define ROCSPARSE_CHECK(stat) \
{ \
if(stat != rocsparse_status_success) \
{ \
std::cerr << "Error: rocsparse error in line " << __LINE__ << std::endl; \
return -1; \
} \
}
int main(int argc, char* argv[])
{
// Query device
int ndev;
HIP_CHECK(hipGetDeviceCount(&ndev));
if(ndev < 1)
{
std::cerr << "No HIP device found" << std::endl;
return -1;
}
// Query device properties
hipDeviceProp_t prop;
HIP_CHECK(hipGetDeviceProperties(&prop, 0));
std::cout << "Device: " << prop.name << std::endl;
// rocSPARSE handle
rocsparse_handle handle;
ROCSPARSE_CHECK(rocsparse_create_handle(&handle));
// Print rocSPARSE version and revision
int ver;
char rev[64];
ROCSPARSE_CHECK(rocsparse_get_version(handle, &ver));
ROCSPARSE_CHECK(rocsparse_get_git_rev(handle, rev));
std::cout << "rocSPARSE version: " << ver / 100000 << "." << ver / 100 % 1000 << "."
<< ver % 100 << "-" << rev << std::endl;
// Input data
// Matrix A
// ( 1.0 2.0 0.0 3.0 )
// ( 0.0 4.0 5.0 0.0 )
// ( 6.0 0.0 0.0 7.0 )
// Number of rows and columns
rocsparse_int m = 3;
rocsparse_int n = 4;
// Number of non-zero entries
rocsparse_int nnz_A = 7;
// CSR row pointers
rocsparse_int hcsr_row_ptr_A[4] = {0, 3, 5, 7};
// CSR column indices
rocsparse_int hcsr_col_ind_A[7] = {0, 1, 3, 1, 2, 0, 3};
// CSR values
double hcsr_val_A[7] = {1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0};
// Matrix B
// ( 0.0 1.0 2.0 3.0 )
// ( 4.0 5.0 0.0 6.0 )
// ( 0.0 7.0 8.0 0.0 )
// Number of non-zero entries
rocsparse_int nnz_B = 8;
// CSR row pointers
rocsparse_int hcsr_row_ptr_B[4] = {0, 3, 6, 8};
// CSR column indices
rocsparse_int hcsr_col_ind_B[8] = {1, 2, 3, 0, 1, 3, 1, 2};
// CSR values
double hcsr_val_B[8] = {1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0};
// Scalar alpha and beta
double alpha = 3.7;
double beta = 1.3;
// Matrix descriptor
rocsparse_mat_descr descr_A;
rocsparse_mat_descr descr_B;
rocsparse_mat_descr descr_C;
ROCSPARSE_CHECK(rocsparse_create_mat_descr(&descr_A));
ROCSPARSE_CHECK(rocsparse_create_mat_descr(&descr_B));
ROCSPARSE_CHECK(rocsparse_create_mat_descr(&descr_C));
// Offload data to device
rocsparse_int* dcsr_row_ptr_A;
rocsparse_int* dcsr_col_ind_A;
double* dcsr_val_A;
rocsparse_int* dcsr_row_ptr_B;
rocsparse_int* dcsr_col_ind_B;
double* dcsr_val_B;
rocsparse_int* dcsr_row_ptr_C;
rocsparse_int* dcsr_col_ind_C;
double* dcsr_val_C;
HIP_CHECK(hipMalloc((void**)&dcsr_row_ptr_A, sizeof(rocsparse_int) * (m + 1)));
HIP_CHECK(hipMalloc((void**)&dcsr_col_ind_A, sizeof(rocsparse_int) * nnz_A));
HIP_CHECK(hipMalloc((void**)&dcsr_val_A, sizeof(double) * nnz_A));
HIP_CHECK(hipMalloc((void**)&dcsr_row_ptr_B, sizeof(rocsparse_int) * (m + 1)));
HIP_CHECK(hipMalloc((void**)&dcsr_col_ind_B, sizeof(rocsparse_int) * nnz_B));
HIP_CHECK(hipMalloc((void**)&dcsr_val_B, sizeof(double) * nnz_B));
HIP_CHECK(hipMalloc((void**)&dcsr_row_ptr_C, sizeof(rocsparse_int) * (m + 1)));
HIP_CHECK(hipMemcpy(
dcsr_row_ptr_A, hcsr_row_ptr_A, sizeof(rocsparse_int) * (m + 1), hipMemcpyHostToDevice));
HIP_CHECK(hipMemcpy(
dcsr_col_ind_A, hcsr_col_ind_A, sizeof(rocsparse_int) * nnz_A, hipMemcpyHostToDevice));
HIP_CHECK(hipMemcpy(dcsr_val_A, hcsr_val_A, sizeof(double) * nnz_A, hipMemcpyHostToDevice));
HIP_CHECK(hipMemcpy(
dcsr_row_ptr_B, hcsr_row_ptr_B, sizeof(rocsparse_int) * (m + 1), hipMemcpyHostToDevice));
HIP_CHECK(hipMemcpy(
dcsr_col_ind_B, hcsr_col_ind_B, sizeof(rocsparse_int) * nnz_B, hipMemcpyHostToDevice));
HIP_CHECK(hipMemcpy(dcsr_val_B, hcsr_val_B, sizeof(double) * nnz_B, hipMemcpyHostToDevice));
// Obtain number of total non-zero entries in C and row pointers of C
rocsparse_int nnz_C;
ROCSPARSE_CHECK(rocsparse_csrgeam_nnz(handle,
m,
n,
descr_A,
nnz_A,
dcsr_row_ptr_A,
dcsr_col_ind_A,
descr_B,
nnz_B,
dcsr_row_ptr_B,
dcsr_col_ind_B,
descr_C,
dcsr_row_ptr_C,
&nnz_C));
std::cout << "Matrix C contains " << nnz_C << " non-zero elements" << std::endl;
// Compute column indices and values of C
HIP_CHECK(hipMalloc((void**)&dcsr_col_ind_C, sizeof(rocsparse_int) * nnz_C));
HIP_CHECK(hipMalloc((void**)&dcsr_val_C, sizeof(double) * nnz_C));
ROCSPARSE_CHECK(rocsparse_dcsrgeam(handle,
m,
n,
&alpha,
descr_A,
nnz_A,
dcsr_val_A,
dcsr_row_ptr_A,
dcsr_col_ind_A,
&beta,
descr_B,
nnz_B,
dcsr_val_B,
dcsr_row_ptr_B,
dcsr_col_ind_B,
descr_C,
dcsr_val_C,
dcsr_row_ptr_C,
dcsr_col_ind_C));
// Print result
std::vector<rocsparse_int> hcsr_row_ptr_C(m + 1);
std::vector<rocsparse_int> hcsr_col_ind_C(nnz_C);
std::vector<double> hcsr_val_C(nnz_C);
HIP_CHECK(hipMemcpy(hcsr_row_ptr_C.data(),
dcsr_row_ptr_C,
sizeof(rocsparse_int) * (m + 1),
hipMemcpyDeviceToHost));
HIP_CHECK(hipMemcpy(hcsr_col_ind_C.data(),
dcsr_col_ind_C,
sizeof(rocsparse_int) * nnz_C,
hipMemcpyDeviceToHost));
HIP_CHECK(
hipMemcpy(hcsr_val_C.data(), dcsr_val_C, sizeof(double) * nnz_C, hipMemcpyDeviceToHost));
std::cout << "C row pointer:";
for(int i = 0; i < m + 1; ++i)
{
std::cout << " " << hcsr_row_ptr_C[i];
}
std::cout << std::endl << "C column indices:";
for(int i = 0; i < nnz_C; ++i)
{
std::cout << " " << hcsr_col_ind_C[i];
}
std::cout << std::endl << "C values:";
for(int i = 0; i < nnz_C; ++i)
{
std::cout << " " << hcsr_val_C[i];
}
std::cout << std::endl;
// Clear rocSPARSE
ROCSPARSE_CHECK(rocsparse_destroy_mat_descr(descr_A));
ROCSPARSE_CHECK(rocsparse_destroy_mat_descr(descr_B));
ROCSPARSE_CHECK(rocsparse_destroy_mat_descr(descr_C));
ROCSPARSE_CHECK(rocsparse_destroy_handle(handle));
// Clear device memory
HIP_CHECK(hipFree(dcsr_row_ptr_A));
HIP_CHECK(hipFree(dcsr_col_ind_A));
HIP_CHECK(hipFree(dcsr_val_A));
HIP_CHECK(hipFree(dcsr_row_ptr_B));
HIP_CHECK(hipFree(dcsr_col_ind_B));
HIP_CHECK(hipFree(dcsr_val_B));
HIP_CHECK(hipFree(dcsr_row_ptr_C));
HIP_CHECK(hipFree(dcsr_col_ind_C));
HIP_CHECK(hipFree(dcsr_val_C));
return 0;
}
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