/** @brief Constructor
* @param A matrix whose approximate inverse is calculated. Must be quadratic.
* @param tag SPAI configuration tag
*/
fspai_precond(const MatrixType & A,
const fspai_tag & tag) : tag_(tag), L(viennacl::traits::context(A)), L_trans(viennacl::traits::context(A)), temp_apply_vec_(A.size1(), viennacl::traits::context(A))
{
//UBLASSparseMatrixType ubls_A;
UBLASSparseMatrixType ublas_A(A.size1(), A.size2());
UBLASSparseMatrixType pA(A.size1(), A.size2());
UBLASSparseMatrixType ublas_L(A.size1(), A.size2());
UBLASSparseMatrixType ublas_L_trans(A.size1(), A.size2());
viennacl::copy(A, ublas_A);
//viennacl::copy(ubls_A, vcl_A);
//vcl_At = viennacl::linalg::prod(vcl_A, vcl_A);
//vcl_pA = viennacl::linalg::prod(vcl_A, vcl_At);
//viennacl::copy(vcl_pA, pA);
pA = ublas_A;
//execute SPAI with ublas matrix types
viennacl::linalg::detail::spai::computeFSPAI(ublas_A, pA, ublas_L, ublas_L_trans, tag_);
//copy back to GPU
viennacl::copy(ublas_L, L);
viennacl::copy(ublas_L_trans, L_trans);
}
int main (int, const char **)
{
typedef float ScalarType; //feel free to change this to 'double' if supported by your hardware
typedef boost::numeric::ublas::matrix<ScalarType> MatrixType;
typedef viennacl::matrix<ScalarType, viennacl::row_major> VCLMatrixType;
std::size_t dim_large = 5;
std::size_t dim_small = 3;
//
// Setup ublas objects and fill with data:
//
MatrixType ublas_A(dim_large, dim_large);
MatrixType ublas_B(dim_small, dim_small);
MatrixType ublas_C(dim_large, dim_small);
MatrixType ublas_D(dim_small, dim_large);
for (std::size_t i=0; i<ublas_A.size1(); ++i)
for (std::size_t j=0; j<ublas_A.size2(); ++j)
ublas_A(i,j) = static_cast<ScalarType>((i+1) + (j+1)*(i+1));
for (std::size_t i=0; i<ublas_B.size1(); ++i)
for (std::size_t j=0; j<ublas_B.size2(); ++j)
ublas_B(i,j) = static_cast<ScalarType>((i+1) + (j+1)*(i+1));
for (std::size_t i=0; i<ublas_C.size1(); ++i)
for (std::size_t j=0; j<ublas_C.size2(); ++j)
ublas_C(i,j) = static_cast<ScalarType>((j+2) + (j+1)*(i+1));
for (std::size_t i=0; i<ublas_D.size1(); ++i)
for (std::size_t j=0; j<ublas_D.size2(); ++j)
ublas_D(i,j) = static_cast<ScalarType>((j+2) + (j+1)*(i+1));
//
// Extract submatrices using the ranges in ublas
//
boost::numeric::ublas::range ublas_r1(0, dim_small); //the first 'dim_small' entries
boost::numeric::ublas::range ublas_r2(dim_large - dim_small, dim_large); //the last 'dim_small' entries
boost::numeric::ublas::matrix_range<MatrixType> ublas_A_sub1(ublas_A, ublas_r1, ublas_r1); //upper left part of A
boost::numeric::ublas::matrix_range<MatrixType> ublas_A_sub2(ublas_A, ublas_r2, ublas_r2); //lower right part of A
boost::numeric::ublas::matrix_range<MatrixType> ublas_C_sub(ublas_C, ublas_r1, ublas_r1); //upper left part of C
boost::numeric::ublas::matrix_range<MatrixType> ublas_D_sub(ublas_D, ublas_r1, ublas_r1); //upper left part of D
//
// Setup ViennaCL objects
//
VCLMatrixType vcl_A(dim_large, dim_large);
VCLMatrixType vcl_B(dim_small, dim_small);
VCLMatrixType vcl_C(dim_large, dim_small);
VCLMatrixType vcl_D(dim_small, dim_large);
viennacl::copy(ublas_A, vcl_A);
viennacl::copy(ublas_B, vcl_B);
viennacl::copy(ublas_C, vcl_C);
viennacl::copy(ublas_D, vcl_D);
//
// Extract submatrices using the ranges in ViennaCL
//
viennacl::range vcl_r1(0, dim_small); //the first 'dim_small' entries
viennacl::range vcl_r2(dim_large - dim_small, dim_large); //the last 'dim_small' entries
viennacl::matrix_range<VCLMatrixType> vcl_A_sub1(vcl_A, vcl_r1, vcl_r1); //upper left part of A
viennacl::matrix_range<VCLMatrixType> vcl_A_sub2(vcl_A, vcl_r2, vcl_r2); //lower right part of A
viennacl::matrix_range<VCLMatrixType> vcl_C_sub(vcl_C, vcl_r1, vcl_r1); //upper left part of C
viennacl::matrix_range<VCLMatrixType> vcl_D_sub(vcl_D, vcl_r1, vcl_r1); //upper left part of D
//
// Copy from ublas to submatrices and back:
//
ublas_A_sub1 = ublas_B;
viennacl::copy(ublas_B, vcl_A_sub1);
viennacl::copy(vcl_A_sub1, ublas_B);
//
// Addition:
//
// range to range:
ublas_A_sub2 += ublas_A_sub2;
vcl_A_sub2 += vcl_A_sub2;
// range to matrix:
ublas_B += ublas_A_sub2;
vcl_B += vcl_A_sub2;
//
// use matrix range with matrix-matrix product:
//
ublas_A_sub1 += prod(ublas_C_sub, ublas_D_sub);
vcl_A_sub1 += viennacl::linalg::prod(vcl_C_sub, vcl_D_sub);
//
// Print result matrices:
//
std::cout << "Result ublas: " << ublas_A << std::endl;
std::cout << "Result ViennaCL: " << vcl_A << std::endl;
//
// That's it.
//
std::cout << "!!!! TUTORIAL COMPLETED SUCCESSFULLY !!!!" << std::endl;
return EXIT_SUCCESS;
}
int main (int, const char **)
{
typedef double ScalarType; //feel free to change this to 'double' if supported by your hardware
typedef boost::numeric::ublas::matrix<ScalarType> MatrixType;
typedef boost::numeric::ublas::vector<ScalarType> VectorType;
typedef viennacl::matrix<ScalarType, viennacl::column_major> VCLMatrixType;
typedef viennacl::vector<ScalarType> VCLVectorType;
std::size_t rows = 113; //number of rows in the matrix
std::size_t cols = 54; //number of columns
//
// Create matrices with some data
//
MatrixType ublas_A(rows, cols);
MatrixType Q(rows, rows);
MatrixType R(rows, cols);
// Some random data with a bit of extra weight on the diagonal
for (std::size_t i=0; i<rows; ++i)
{
for (std::size_t j=0; j<cols; ++j)
{
ublas_A(i,j) = -1.0 + (i+1)*(j+1)
+ ( (rand() % 1000) - 500.0) / 1000.0;
if (i == j)
ublas_A(i,j) += 10.0;
R(i,j) = 0.0;
}
for (std::size_t j=0; j<rows; ++j)
Q(i,j) = 0.0;
}
// keep initial input matrix for comparison
MatrixType ublas_A_backup(ublas_A);
//
// Setup the matrix in ViennaCL:
//
VCLVectorType dummy(10);
VCLMatrixType vcl_A(ublas_A.size1(), ublas_A.size2());
viennacl::copy(ublas_A, vcl_A);
//
// Compute QR factorization of A. A is overwritten with Householder vectors. Coefficients are returned and a block size of 3 is used.
// Note that at the moment the number of columns of A must be divisible by the block size
//
std::cout << "--- Boost.uBLAS ---" << std::endl;
std::vector<ScalarType> ublas_betas = viennacl::linalg::inplace_qr(ublas_A); //computes the QR factorization
//
// A check for the correct result:
//
viennacl::linalg::recoverQ(ublas_A, ublas_betas, Q, R);
MatrixType ublas_QR = prod(Q, R);
double ublas_error = check(ublas_QR, ublas_A_backup);
std::cout << "Max rel error (ublas): " << ublas_error << std::endl;
//
// QR factorization in ViennaCL using Boost.uBLAS for the panel factorization
//
std::cout << "--- Hybrid (default) ---" << std::endl;
viennacl::copy(ublas_A_backup, vcl_A);
std::vector<ScalarType> hybrid_betas = viennacl::linalg::inplace_qr(vcl_A);
//
// A check for the correct result:
//
viennacl::copy(vcl_A, ublas_A);
Q.clear(); R.clear();
viennacl::linalg::recoverQ(ublas_A, hybrid_betas, Q, R);
double hybrid_error = check(ublas_QR, ublas_A_backup);
std::cout << "Max rel error (hybrid): " << hybrid_error << std::endl;
//
// That's it.
//
std::cout << "!!!! TUTORIAL COMPLETED SUCCESSFULLY !!!!" << std::endl;
return EXIT_SUCCESS;
}
/**
* We set up a random matrix using Boost.uBLAS and use it to initialize a ViennaCL matrix.
* Then we compute the QR factorization directly for the uBLAS matrix as well as the ViennaCL matrix.
**/
int main (int, const char **)
{
typedef double ScalarType; //feel free to change this to 'double' if supported by your hardware
typedef boost::numeric::ublas::matrix<ScalarType> MatrixType;
typedef viennacl::matrix<ScalarType, viennacl::column_major> VCLMatrixType;
std::size_t rows = 113; // number of rows in the matrix
std::size_t cols = 54; // number of columns
/**
* Create uBLAS matrices with some random input data.
**/
MatrixType ublas_A(rows, cols);
MatrixType Q(rows, rows);
MatrixType R(rows, cols);
// Some random data with a bit of extra weight on the diagonal
for (std::size_t i=0; i<rows; ++i)
{
for (std::size_t j=0; j<cols; ++j)
{
ublas_A(i,j) = ScalarType(-1.0) + ScalarType((i+1)*(j+1))
+ ScalarType( (rand() % 1000) - 500.0) / ScalarType(1000.0);
if (i == j)
ublas_A(i,j) += ScalarType(10.0);
R(i,j) = 0.0;
}
for (std::size_t j=0; j<rows; ++j)
Q(i,j) = ScalarType(0.0);
}
// keep initial input matrix for comparison
MatrixType ublas_A_backup(ublas_A);
/**
* Setup the matrix in ViennaCL and copy the data from the uBLAS matrix:
**/
VCLMatrixType vcl_A(ublas_A.size1(), ublas_A.size2());
viennacl::copy(ublas_A, vcl_A);
/**
* <h2>QR Factorization with Boost.uBLAS Matrices</h2>
* Compute QR factorization of A. A is overwritten with Householder vectors. Coefficients are returned and a block size of 3 is used.
* Note that at the moment the number of columns of A must be divisible by the block size
**/
std::cout << "--- Boost.uBLAS ---" << std::endl;
std::vector<ScalarType> ublas_betas = viennacl::linalg::inplace_qr(ublas_A); //computes the QR factorization
/**
* Let us check for the correct result:
**/
viennacl::linalg::recoverQ(ublas_A, ublas_betas, Q, R);
MatrixType ublas_QR = prod(Q, R);
double ublas_error = check(ublas_QR, ublas_A_backup);
std::cout << "Maximum relative error (ublas): " << ublas_error << std::endl;
/**
* <h2>QR Factorization with Boost.uBLAS Matrices</h2>
* We now compute the QR factorization from a ViennaCL matrix. Internally it uses Boost.uBLAS for the panel factorization.
**/
std::cout << "--- Hybrid (default) ---" << std::endl;
viennacl::copy(ublas_A_backup, vcl_A);
std::vector<ScalarType> hybrid_betas = viennacl::linalg::inplace_qr(vcl_A);
/**
* Let us check for the correct result:
**/
viennacl::copy(vcl_A, ublas_A);
Q.clear(); R.clear();
viennacl::linalg::recoverQ(ublas_A, hybrid_betas, Q, R);
double hybrid_error = check(ublas_QR, ublas_A_backup);
std::cout << "Maximum relative error (hybrid): " << hybrid_error << std::endl;
/**
* That's it. Print a success message and exit.
**/
std::cout << "!!!! TUTORIAL COMPLETED SUCCESSFULLY !!!!" << std::endl;
return EXIT_SUCCESS;
}
int main (int, const char **)
{
typedef float ScalarType; //feel free to change this to 'double' if supported by your hardware
typedef boost::numeric::ublas::matrix<ScalarType> MatrixType;
typedef boost::numeric::ublas::vector<ScalarType> VectorType;
typedef viennacl::matrix<ScalarType, viennacl::column_major> VCLMatrixType;
typedef viennacl::vector<ScalarType> VCLVectorType;
//
// Create vectors and matrices with data, cf. http://tutorial.math.lamar.edu/Classes/LinAlg/QRDecomposition.aspx
//
VectorType ublas_b(4);
ublas_b(0) = -4;
ublas_b(1) = 2;
ublas_b(2) = 5;
ublas_b(3) = -1;
MatrixType ublas_A(4, 3);
MatrixType Q = boost::numeric::ublas::zero_matrix<ScalarType>(4, 4);
MatrixType R = boost::numeric::ublas::zero_matrix<ScalarType>(4, 3);
ublas_A(0, 0) = 2; ublas_A(0, 1) = -1; ublas_A(0, 2) = 1;
ublas_A(1, 0) = 1; ublas_A(1, 1) = -5; ublas_A(1, 2) = 2;
ublas_A(2, 0) = -3; ublas_A(2, 1) = 1; ublas_A(2, 2) = -4;
ublas_A(3, 0) = 1; ublas_A(3, 1) = -1; ublas_A(3, 2) = 1;
//
// Setup the matrix in ViennaCL:
//
VCLVectorType vcl_b(ublas_b.size());
VCLMatrixType vcl_A(ublas_A.size1(), ublas_A.size2());
viennacl::copy(ublas_b, vcl_b);
viennacl::copy(ublas_A, vcl_A);
//////////// Part 1: Use Boost.uBLAS for all computations ////////////////
std::cout << "--- Boost.uBLAS ---" << std::endl;
std::vector<ScalarType> ublas_betas = viennacl::linalg::inplace_qr(ublas_A); //computes the QR factorization
// compute modified RHS of the minimization problem:
// b' := Q^T b
viennacl::linalg::inplace_qr_apply_trans_Q(ublas_A, ublas_betas, ublas_b);
// Final step: triangular solve: Rx = b'', where b'' are the first three entries in b'
// We only need the upper left square part of A, which defines the upper triangular matrix R
boost::numeric::ublas::range ublas_range(0, 3);
boost::numeric::ublas::matrix_range<MatrixType> ublas_R(ublas_A, ublas_range, ublas_range);
boost::numeric::ublas::vector_range<VectorType> ublas_b2(ublas_b, ublas_range);
boost::numeric::ublas::inplace_solve(ublas_R, ublas_b2, boost::numeric::ublas::upper_tag());
std::cout << "Result: " << ublas_b2 << std::endl;
//////////// Part 2: Use ViennaCL types for BLAS 3 computations, but use Boost.uBLAS for the panel factorization ////////////////
std::cout << "--- ViennaCL (hybrid implementation) ---" << std::endl;
std::vector<ScalarType> hybrid_betas = viennacl::linalg::inplace_qr(vcl_A);
// compute modified RHS of the minimization problem:
// b := Q^T b
viennacl::linalg::inplace_qr_apply_trans_Q(vcl_A, hybrid_betas, vcl_b);
// Final step: triangular solve: Rx = b'.
// We only need the upper part of A such that R is a square matrix
viennacl::range vcl_range(0, 3);
viennacl::matrix_range<VCLMatrixType> vcl_R(vcl_A, vcl_range, vcl_range);
viennacl::vector_range<VCLVectorType> vcl_b2(vcl_b, vcl_range);
viennacl::linalg::inplace_solve(vcl_R, vcl_b2, viennacl::linalg::upper_tag());
std::cout << "Result: " << vcl_b2 << std::endl;
//
// That's it.
//
std::cout << "!!!! TUTORIAL COMPLETED SUCCESSFULLY !!!!" << std::endl;
return EXIT_SUCCESS;
}
/**
* The minimization problem of finding x such that \f$ \Vert Ax - b \Vert \f$ is solved as follows:
* - Compute the QR-factorization of A = QR.
* - Compute \f$ b' = Q^{\mathrm{T}} b \f$ for the equivalent minimization problem \f$ \Vert Rx - Q^{\mathrm{T}} b \f$.
* - Solve the triangular system \f$ \tilde{R} x = b' \f$, where \f$ \tilde{R} \f$ is the upper square matrix of R.
*
**/
int main (int, const char **)
{
typedef float ScalarType; //feel free to change this to 'double' if supported by your hardware
typedef boost::numeric::ublas::matrix<ScalarType> MatrixType;
typedef boost::numeric::ublas::vector<ScalarType> VectorType;
typedef viennacl::matrix<ScalarType, viennacl::column_major> VCLMatrixType;
typedef viennacl::vector<ScalarType> VCLVectorType;
/**
* Create vectors and matrices with data:
**/
VectorType ublas_b(4);
ublas_b(0) = -4;
ublas_b(1) = 2;
ublas_b(2) = 5;
ublas_b(3) = -1;
MatrixType ublas_A(4, 3);
ublas_A(0, 0) = 2;
ublas_A(0, 1) = -1;
ublas_A(0, 2) = 1;
ublas_A(1, 0) = 1;
ublas_A(1, 1) = -5;
ublas_A(1, 2) = 2;
ublas_A(2, 0) = -3;
ublas_A(2, 1) = 1;
ublas_A(2, 2) = -4;
ublas_A(3, 0) = 1;
ublas_A(3, 1) = -1;
ublas_A(3, 2) = 1;
/**
* Setup the matrix and vector with ViennaCL objects and copy the data from the uBLAS objects:
**/
VCLVectorType vcl_b(ublas_b.size());
VCLMatrixType vcl_A(ublas_A.size1(), ublas_A.size2());
viennacl::copy(ublas_b, vcl_b);
viennacl::copy(ublas_A, vcl_A);
/**
* <h2>Option 1: Using Boost.uBLAS</h2>
*
* The implementation in ViennaCL accepts both uBLAS and ViennaCL types.
* We start with a single-threaded implementation using Boost.uBLAS.
**/
std::cout << "--- Boost.uBLAS ---" << std::endl;
/**
* The first (and computationally most expensive) step is to compute the QR factorization of A.
* Since we do not need A later, we directly overwrite A with the householder reflectors and the upper triangular matrix R.
* The returned vector holds the scalar coefficients (betas) for the Householder reflections \f$ I - \beta v v^{\mathrm{T}} \f$
**/
std::vector<ScalarType> ublas_betas = viennacl::linalg::inplace_qr(ublas_A);
/**
* Compute the modified RHS of the minimization problem from the QR factorization, but do not form \f$ Q^{\mathrm{T}} \f$ explicitly:
* b' := Q^T b
**/
viennacl::linalg::inplace_qr_apply_trans_Q(ublas_A, ublas_betas, ublas_b);
/**
* Final step: triangular solve: Rx = b'', where b'' are the first three entries in b'
* We only need the upper left square part of A, which defines the upper triangular matrix R
**/
boost::numeric::ublas::range ublas_range(0, 3);
boost::numeric::ublas::matrix_range<MatrixType> ublas_R(ublas_A, ublas_range, ublas_range);
boost::numeric::ublas::vector_range<VectorType> ublas_b2(ublas_b, ublas_range);
boost::numeric::ublas::inplace_solve(ublas_R, ublas_b2, boost::numeric::ublas::upper_tag());
std::cout << "Result: " << ublas_b2 << std::endl;
/**
* <h2>Option 2: Use ViennaCL types</h2>
*
* ViennaCL is used for the computationally intensive BLAS 3 computations.
* Boost.uBLAS is used for the panel factorization on the host (CPU).
*/
std::cout << "--- ViennaCL (hybrid implementation) ---" << std::endl;
std::vector<ScalarType> hybrid_betas = viennacl::linalg::inplace_qr(vcl_A);
/**
* compute modified RHS of the minimization problem: \f$ b' := Q^T b \f$
**/
viennacl::linalg::inplace_qr_apply_trans_Q(vcl_A, hybrid_betas, vcl_b);
/**
* Final step: triangular solve: Rx = b'.
* We only need the upper part of A such that R is a square matrix
**/
viennacl::range vcl_range(0, 3);
viennacl::matrix_range<VCLMatrixType> vcl_R(vcl_A, vcl_range, vcl_range);
viennacl::vector_range<VCLVectorType> vcl_b2(vcl_b, vcl_range);
viennacl::linalg::inplace_solve(vcl_R, vcl_b2, viennacl::linalg::upper_tag());
std::cout << "Result: " << vcl_b2 << std::endl;
/**
* That's it.
**/
std::cout << "!!!! TUTORIAL COMPLETED SUCCESSFULLY !!!!" << std::endl;
return EXIT_SUCCESS;
}
int run_test()
{
//typedef float ScalarType;
typedef boost::numeric::ublas::matrix<ScalarType> MatrixType;
typedef boost::numeric::ublas::vector<ScalarType> VectorType;
typedef viennacl::matrix<ScalarType, T> VCLMatrixType;
typedef viennacl::vector<ScalarType> VCLVectorType;
viennacl::scalar<ScalarType> gpu_pi = ScalarType(3.1415);
std::size_t dim_large = 151;
std::size_t dim_small = 37;
//std::size_t dim_large = 35;
//std::size_t dim_small = 11;
//setup ublas objects:
MatrixType ublas_A(dim_large, dim_large);
for (std::size_t i=0; i<ublas_A.size1(); ++i)
for (std::size_t j=0; j<ublas_A.size2(); ++j)
ublas_A(i,j) = ScalarType((i+1) + (j+1)*(i+1));
MatrixType ublas_B(dim_small, dim_small);
for (std::size_t i=0; i<ublas_B.size1(); ++i)
for (std::size_t j=0; j<ublas_B.size2(); ++j)
ublas_B(i,j) = ScalarType((i+1) + (j+1)*(i+1));
MatrixType ublas_C(dim_large, dim_small);
for (std::size_t i=0; i<ublas_C.size1(); ++i)
for (std::size_t j=0; j<ublas_C.size2(); ++j)
ublas_C(i,j) = ScalarType((j+2) + (j+1)*(i+1));
MatrixType ublas_D(dim_small, dim_large);
for (std::size_t i=0; i<ublas_D.size1(); ++i)
for (std::size_t j=0; j<ublas_D.size2(); ++j)
ublas_D(i,j) = ScalarType((j+2) + (j+1)*(i+1));
boost::numeric::ublas::range ublas_r1(0, dim_small);
boost::numeric::ublas::range ublas_r2(dim_large - dim_small, dim_large);
boost::numeric::ublas::matrix_range<MatrixType> ublas_A_sub1(ublas_A, ublas_r1, ublas_r1);
boost::numeric::ublas::matrix_range<MatrixType> ublas_A_sub2(ublas_A, ublas_r2, ublas_r2);
boost::numeric::ublas::matrix_range<MatrixType> ublas_C_sub(ublas_C, ublas_r1, ublas_r1);
boost::numeric::ublas::matrix_range<MatrixType> ublas_D_sub(ublas_D, ublas_r1, ublas_r1);
//Setup ViennaCL objects
VCLMatrixType vcl_A(dim_large, dim_large);
viennacl::copy(ublas_A, vcl_A);
VCLMatrixType vcl_B(dim_small, dim_small);
viennacl::copy(ublas_B, vcl_B);
VCLMatrixType vcl_C(dim_large, dim_small);
viennacl::copy(ublas_C, vcl_C);
VCLMatrixType vcl_D(dim_small, dim_large);
viennacl::copy(ublas_D, vcl_D);
viennacl::range vcl_r1(0, dim_small);
viennacl::range vcl_r2(dim_large - dim_small, dim_large);
viennacl::matrix_range<VCLMatrixType> vcl_A_sub1(vcl_A, vcl_r1, vcl_r1);
viennacl::matrix_range<VCLMatrixType> vcl_A_sub2(vcl_A, vcl_r2, vcl_r2);
viennacl::matrix_range<VCLMatrixType> vcl_C_sub(vcl_C, vcl_r1, vcl_r1);
viennacl::matrix_range<VCLMatrixType> vcl_D_sub(vcl_D, vcl_r1, vcl_r1);
std::cout << std::endl;
std::cout << "//" << std::endl;
std::cout << "////////// Test: Copy CTOR //////////" << std::endl;
std::cout << "//" << std::endl;
{
std::cout << "Testing matrix created from range... ";
ublas_B = ublas_A_sub1;
VCLMatrixType vcl_temp = vcl_A_sub1;
if (check_for_equality(ublas_B, vcl_temp))
std::cout << "PASSED!" << std::endl;
else
{
std::cout << std::endl << "TEST failed!";
return EXIT_FAILURE;
}
std::cout << "Testing range created from range... ";
//ublas_A_sub1 = ublas_A_sub1;
VCLMatrixType vcl_ctor_sub1 = vcl_A_sub1; //Note: This is mostly a compilation test only
if (check_for_equality(ublas_A, vcl_A))
std::cout << "PASSED!" << std::endl;
else
{
std::cout << std::endl << "TEST failed!";
return EXIT_FAILURE;
}
}
std::cout << std::endl;
std::cout << "//" << std::endl;
std::cout << "////////// Test: Assignments //////////" << std::endl;
std::cout << "//" << std::endl;
std::cout << "Testing matrix assigned to range... ";
ublas_A_sub1 = ublas_B;
vcl_A_sub1 = vcl_B;
if (check_for_equality(ublas_A, vcl_A))
std::cout << "PASSED!" << std::endl;
else
{
std::cout << std::endl << "TEST failed!";
return EXIT_FAILURE;
}
std::cout << "Testing range assigned to matrix... ";
ublas_B = ublas_A_sub2;
vcl_B = vcl_A_sub2;
if (check_for_equality(ublas_B, vcl_B))
std::cout << "PASSED!" << std::endl;
else
{
std::cout << std::endl << "TEST failed!";
return EXIT_FAILURE;
}
std::cout << "Testing range assigned to range... ";
ublas_A_sub1 = ublas_C_sub;
vcl_A_sub1 = vcl_C_sub;
if (check_for_equality(ublas_A, vcl_A))
std::cout << "PASSED!" << std::endl;
else
{
std::cout << std::endl << "TEST failed!";
return EXIT_FAILURE;
}
std::cout << std::endl;
std::cout << "//" << std::endl;
std::cout << "////////// Test 1: Copy to GPU //////////" << std::endl;
std::cout << "//" << std::endl;
ublas_A_sub1 = ublas_B;
viennacl::copy(ublas_B, vcl_A_sub1);
std::cout << "Testing upper left copy to A... ";
if (check_for_equality(ublas_A, vcl_A))
std::cout << "PASSED!" << std::endl;
else
{
std::cout << std::endl << "TEST failed!";
return EXIT_FAILURE;
}
ublas_A_sub2 = ublas_B;
viennacl::copy(ublas_B, vcl_A_sub2);
std::cout << "Testing lower right copy to A... ";
if (check_for_equality(ublas_A, vcl_A))
std::cout << "PASSED!" << std::endl;
else
{
std::cout << std::endl << "TEST failed!";
return EXIT_FAILURE;
}
ublas_C_sub = ublas_B;
viennacl::copy(ublas_B, vcl_C_sub);
std::cout << "Testing upper copy to C... ";
if (check_for_equality(ublas_C, vcl_C))
std::cout << "PASSED!" << std::endl;
else
{
std::cout << std::endl << "TEST failed!";
return EXIT_FAILURE;
}
ublas_D_sub = ublas_B;
viennacl::copy(ublas_B, vcl_D_sub);
std::cout << "Testing left copy to D... ";
if (check_for_equality(ublas_D, vcl_D))
std::cout << "PASSED!" << std::endl;
else
std::cout << std::endl << "TEST failed!";
std::cout << std::endl;
std::cout << "//" << std::endl;
std::cout << "////////// Test 2: Copy from GPU //////////" << std::endl;
std::cout << "//" << std::endl;
std::cout << "Testing upper left copy to A... ";
if (check_for_equality(ublas_A_sub1, vcl_A_sub1))
std::cout << "PASSED!" << std::endl;
else
{
std::cout << std::endl << "TEST failed!";
return EXIT_FAILURE;
}
std::cout << "Testing lower right copy to A... ";
if (check_for_equality(ublas_A_sub2, vcl_A_sub2))
std::cout << "PASSED!" << std::endl;
else
{
std::cout << std::endl << "TEST failed!";
return EXIT_FAILURE;
}
std::cout << "Testing upper copy to C... ";
if (check_for_equality(ublas_C_sub, vcl_C_sub))
std::cout << "PASSED!" << std::endl;
else
{
std::cout << std::endl << "TEST failed!";
return EXIT_FAILURE;
}
std::cout << "Testing left copy to D... ";
if (check_for_equality(ublas_D_sub, vcl_D_sub))
std::cout << "PASSED!" << std::endl;
else
{
std::cout << std::endl << "TEST failed!";
return EXIT_FAILURE;
}
std::cout << "//" << std::endl;
std::cout << "////////// Test 3: Addition //////////" << std::endl;
std::cout << "//" << std::endl;
viennacl::copy(ublas_A_sub2, vcl_A_sub2);
std::cout << "Inplace add to submatrix: ";
ublas_A_sub2 += ublas_A_sub2;
vcl_A_sub2 += vcl_A_sub2;
if (check_for_equality(ublas_A, vcl_A))
std::cout << "PASSED!" << std::endl;
else
{
std::cout << std::endl << "TEST failed!";
return EXIT_FAILURE;
}
std::cout << "Inplace add to matrix: ";
ublas_B += ublas_A_sub2;
vcl_B += vcl_A_sub2;
if (check_for_equality(ublas_B, vcl_B))
std::cout << "PASSED!" << std::endl;
else
{
std::cout << std::endl << "TEST failed!";
return EXIT_FAILURE;
}
std::cout << "Inplace add of matrix: ";
ublas_A_sub2 += ublas_B;
vcl_A_sub2 += vcl_B;
if (check_for_equality(ublas_A, vcl_A))
std::cout << "PASSED!" << std::endl;
else
{
std::cout << std::endl << "TEST failed!";
return EXIT_FAILURE;
}
std::cout << "Add to submatrix: ";
ublas_A_sub2 = ublas_A_sub2 + ublas_A_sub2;
vcl_A_sub2 = vcl_A_sub2 + vcl_A_sub2;
if (check_for_equality(ublas_A, vcl_A))
std::cout << "PASSED!" << std::endl;
else
{
std::cout << std::endl << "TEST failed!";
return EXIT_FAILURE;
}
std::cout << "Add to matrix: ";
ublas_B = ublas_A_sub2 + ublas_A_sub2;
vcl_B = vcl_A_sub2 + vcl_A_sub2;
if (check_for_equality(ublas_B, vcl_B))
std::cout << "PASSED!" << std::endl;
else
{
std::cout << std::endl << "TEST failed!";
return EXIT_FAILURE;
}
std::cout << "//" << std::endl;
std::cout << "////////// Test 4: Subtraction //////////" << std::endl;
std::cout << "//" << std::endl;
viennacl::copy(ublas_A_sub2, vcl_A_sub2);
std::cout << "Inplace sub to submatrix: ";
ublas_A_sub2 -= ublas_A_sub2;
vcl_A_sub2 -= vcl_A_sub2;
if (check_for_equality(ublas_A, vcl_A))
std::cout << "PASSED!" << std::endl;
else
{
std::cout << std::endl << "TEST failed!";
return EXIT_FAILURE;
}
std::cout << "Inplace sub to matrix: ";
ublas_B -= ublas_A_sub2;
vcl_B -= vcl_A_sub2;
if (check_for_equality(ublas_B, vcl_B))
std::cout << "PASSED!" << std::endl;
else
{
std::cout << std::endl << "TEST failed!";
return EXIT_FAILURE;
}
std::cout << "Inplace sub of matrix: ";
ublas_A_sub2 -= ublas_B;
vcl_A_sub2 -= vcl_B;
if (check_for_equality(ublas_A, vcl_A))
std::cout << "PASSED!" << std::endl;
else
{
std::cout << std::endl << "TEST failed!";
return EXIT_FAILURE;
}
std::cout << "Sub from submatrix: ";
ublas_A_sub2 = ublas_A_sub2 - ublas_A_sub2;
vcl_A_sub2 = vcl_A_sub2 - vcl_A_sub2;
if (check_for_equality(ublas_A, vcl_A))
std::cout << "PASSED!" << std::endl;
else
{
std::cout << std::endl << "TEST failed!";
return EXIT_FAILURE;
}
std::cout << "Sub from matrix: ";
ublas_B = ublas_A_sub2 - ublas_A_sub2;
vcl_B = vcl_A_sub2 - vcl_A_sub2;
if (check_for_equality(ublas_B, vcl_B))
std::cout << "PASSED!" << std::endl;
else
{
std::cout << std::endl << "TEST failed!";
return EXIT_FAILURE;
}
std::cout << "//" << std::endl;
std::cout << "////////// Test 5: Scaling //////////" << std::endl;
std::cout << "//" << std::endl;
viennacl::copy(ublas_A, vcl_A);
std::cout << "Multiplication with CPU scalar: ";
ublas_A_sub2 *= ScalarType(3.1415);
vcl_A_sub2 *= ScalarType(3.1415);
if (check_for_equality(ublas_A, vcl_A))
std::cout << "PASSED!" << std::endl;
else
{
std::cout << std::endl << "TEST failed!";
return EXIT_FAILURE;
}
std::cout << "Multiplication with GPU scalar: ";
ublas_A_sub2 *= gpu_pi;
vcl_A_sub2 *= gpu_pi;
if (check_for_equality(ublas_A, vcl_A))
std::cout << "PASSED!" << std::endl;
else
{
std::cout << std::endl << "TEST failed!";
return EXIT_FAILURE;
}
std::cout << "Division with CPU scalar: ";
ublas_A_sub2 /= ScalarType(3.1415);
vcl_A_sub2 /= ScalarType(3.1415);
if (check_for_equality(ublas_A, vcl_A))
std::cout << "PASSED!" << std::endl;
else
{
std::cout << std::endl << "TEST failed!";
return EXIT_FAILURE;
}
std::cout << "Division with GPU scalar: ";
ublas_A_sub2 /= gpu_pi;
vcl_A_sub2 /= gpu_pi;
if (check_for_equality(ublas_A, vcl_A))
std::cout << "PASSED!" << std::endl;
else
{
std::cout << std::endl << "TEST failed!";
return EXIT_FAILURE;
}
std::cout << "//" << std::endl;
std::cout << "////////// Test 6: Matrix-Matrix Products //////////" << std::endl;
std::cout << "//" << std::endl;
std::cout << "Assigned C = A * B: ";
ublas_A_sub1 = prod(ublas_C_sub, ublas_D_sub);
vcl_A_sub1 = viennacl::linalg::prod(vcl_C_sub, vcl_D_sub);
if (check_for_equality(ublas_A, vcl_A))
std::cout << "PASSED!" << std::endl;
else
{
std::cout << std::endl << "TEST failed!";
return EXIT_FAILURE;
}
std::cout << "Assigned C = A^T * B: ";
ublas_A_sub1 = prod(trans(ublas_C_sub), ublas_D_sub);
vcl_A_sub1 = viennacl::linalg::prod(trans(vcl_C_sub), vcl_D_sub);
if (check_for_equality(ublas_A, vcl_A))
std::cout << "PASSED!" << std::endl;
else
{
std::cout << std::endl << "TEST failed!";
return EXIT_FAILURE;
}
std::cout << "Assigned C = A * B^T: ";
ublas_A_sub1 = prod(ublas_C_sub, trans(ublas_D_sub));
vcl_A_sub1 = viennacl::linalg::prod(vcl_C_sub, trans(vcl_D_sub));
if (check_for_equality(ublas_A, vcl_A))
std::cout << "PASSED!" << std::endl;
else
{
std::cout << std::endl << "TEST failed!";
return EXIT_FAILURE;
}
std::cout << "Assigned C = A^T * B^T: ";
ublas_A_sub1 = prod(trans(ublas_C_sub), trans(ublas_D_sub));
vcl_A_sub1 = viennacl::linalg::prod(trans(vcl_C_sub), trans(vcl_D_sub));
if (check_for_equality(ublas_A, vcl_A))
std::cout << "PASSED!" << std::endl;
else
{
std::cout << std::endl << "TEST failed!";
return EXIT_FAILURE;
}
std::cout << "Inplace add of prod(): ";
ublas_A_sub1 += prod(ublas_C_sub, ublas_D_sub);
vcl_A_sub1 += viennacl::linalg::prod(vcl_C_sub, vcl_D_sub);
if (check_for_equality(ublas_A, vcl_A))
std::cout << "PASSED!" << std::endl;
else
{
std::cout << std::endl << "TEST failed!";
return EXIT_FAILURE;
}
std::cout << "//" << std::endl;
std::cout << "////////// Test 7: Matrix-Vector Products //////////" << std::endl;
std::cout << "//" << std::endl;
VectorType ublas_v1(dim_large);
for (std::size_t i=0; i<ublas_v1.size(); ++i)
ublas_v1(i) = i;
boost::numeric::ublas::vector_range<VectorType> ublas_v1_sub(ublas_v1, ublas_r1);
VectorType ublas_v2(dim_large);
for (std::size_t i=0; i<ublas_v2.size(); ++i)
ublas_v2(i) = i - 5;
boost::numeric::ublas::vector_range<VectorType> ublas_v2_sub(ublas_v2, ublas_r1);
VCLVectorType vcl_v1(ublas_v1.size());
viennacl::vector_range<VCLVectorType> vcl_v1_sub(vcl_v1, vcl_r1);
VCLVectorType vcl_v2(ublas_v2.size());
viennacl::vector_range<VCLVectorType> vcl_v2_sub(vcl_v2, vcl_r1);
viennacl::copy(ublas_v1, vcl_v1);
viennacl::copy(ublas_v2, vcl_v2);
viennacl::copy(ublas_A_sub1, vcl_A_sub1);
ublas_v2_sub = prod(ublas_A_sub1, ublas_v1_sub);
vcl_v2_sub = viennacl::linalg::prod(vcl_A_sub1, vcl_v1_sub);
if (check_for_equality_vector(ublas_v2, vcl_v2))
std::cout << "PASSED!" << std::endl;
else
{
std::cout << std::endl << "TEST failed!";
return EXIT_FAILURE;
}
std::cout << std::endl;
std::cout << "----------------------------------------------" << std::endl;
std::cout << std::endl;
return EXIT_SUCCESS;
}