OpenBLAS/utest/test_extensions/test_zsbmv.c

608 lines
18 KiB
C

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#include "utest/openblas_utest.h"
#include "common.h"
#define DATASIZE 100
#define INCREMENT 2
struct DATA_ZSBMV {
double sp_matrix[DATASIZE * (DATASIZE + 1)];
double sb_matrix[DATASIZE * DATASIZE * 2];
double b_test[DATASIZE * 2 * INCREMENT];
double c_test[DATASIZE * 2 * INCREMENT];
double c_verify[DATASIZE * 2 * INCREMENT];
};
// DOUBLE_EPS_ZGEMV = MAX_VAL * NUMBER OF OPERATIONS * DBL_EPSILON
// DOUBLE_EPS_ZGEMV = 5.0 * O(100 * 100) * 2.2e-16 = 1e-11
#define DOUBLE_EPS_ZGEMV 1e-11
#ifdef BUILD_COMPLEX16
static struct DATA_ZSBMV data_zsbmv;
/**
* Transform full-storage symmetric band matrix A to upper (U) or lower (L)
* band-packed storage mode.
*
* param uplo specifies whether matrix a is upper or lower band-packed.
* param n - number of rows and columns of A
* param k - number of super-diagonals of A
* output param a - buffer for holding symmetric band-packed matrix
* param lda - specifies the leading dimension of a
* param sb_matrix - buffer holding full-storage symmetric band matrix A
* param ldm - specifies the leading dimension of A
*/
static void transform_to_band_storage(char uplo, blasint n, blasint k, double* a, blasint lda,
double* sb_matrix, blasint ldm)
{
blasint i, j, m;
if (uplo == 'L') {
for (j = 0; j < n; j++)
{
m = -j;
for (i = 2 * j; i < MIN(2 * n, 2 * (j + k + 1)); i += 2)
{
a[(2*m + i) + j * lda * 2] = sb_matrix[i + j * ldm * 2];
a[(2*m + (i + 1)) + j * lda * 2] = sb_matrix[(i + 1) + j * ldm * 2];
}
}
}
else {
for (j = 0; j < n; j++)
{
m = k - j;
for (i = MAX(0, 2*(j - k)); i <= j*2; i += 2)
{
a[(2*m + i) + j * lda * 2] = sb_matrix[i + j * ldm * 2];
a[(2*m + (i + 1)) + j * lda * 2] = sb_matrix[(i + 1) + j * ldm * 2];
}
}
}
}
/**
* Generate full-storage symmetric band matrix A with k - super-diagonals
* from input symmetric packed matrix in lower packed mode (L)
*
* output param sb_matrix - buffer for holding full-storage symmetric band matrix.
* param sp_matrix - buffer holding input symmetric packed matrix
* param n - number of rows and columns of A
* param k - number of super-diagonals of A
*/
static void get_symmetric_band_matr(double *sb_matrix, double *sp_matrix, blasint n, blasint k)
{
blasint m;
blasint i, j;
m = 0;
for (i = 0; i < n; i++)
{
for (j = 0; j < n * 2; j += 2)
{
// Make matrix band with k super-diagonals
if (fabs((i+1) - ceil((j+1)/2.0)) > k)
{
sb_matrix[i * n * 2 + j] = 0.0;
sb_matrix[i * n * 2 + j + 1] = 0.0;
continue;
}
if (j / 2 < i)
{
sb_matrix[i * n * 2 + j] =
sb_matrix[j * n + i * 2];
sb_matrix[i * n * 2 + j + 1] =
sb_matrix[j * n + i * 2 + 1];
}
else
{
sb_matrix[i * n * 2 + j] = sp_matrix[m++];
sb_matrix[i * n * 2 + j + 1] = sp_matrix[m++];
}
}
}
}
/**
* Check if error function was called with expected function name
* and param info
*
* param uplo specifies whether matrix a is upper or lower band-packed.
* param n - number of rows and columns of A
* param k - number of super-diagonals of A
* param lda - specifies the leading dimension of a
* param inc_b - stride of vector b_test
* param inc_c - stride of vector c_test
* param expected_info - expected invalid parameter number in zsbmv
* return TRUE if everything is ok, otherwise FALSE
*/
static int check_badargs(char uplo, blasint n, blasint k, blasint lda, blasint inc_b,
blasint inc_c, int expected_info)
{
double alpha[] = {1.0, 1.0};
double beta[] = {0.0, 0.0};
double a[2];
drand_generate(a, 2);
set_xerbla("ZSBMV ", expected_info);
BLASFUNC(zsbmv)(&uplo, &n, &k, alpha, a, &lda, data_zsbmv.b_test,
&inc_b, beta, data_zsbmv.c_test, &inc_c);
return check_error();
}
/**
* Comapare results computed by zsbmv and zgemv
* since zsbmv is zgemv for symmetric band matrix
*
* param uplo specifies whether matrix A is upper or lower triangular
* param n - number of rows and columns of A
* param k - number of super-diagonals of A
* param alpha - scaling factor for the matrix-vector product
* param lda - specifies the leading dimension of a
* param inc_b - stride of vector b_test
* param beta - scaling factor for vector c_test
* param inc_c - stride of vector c_test
* param lda - specifies the leading dimension of a
* return norm of differences
*/
static double check_zsbmv(char uplo, blasint n, blasint k, double *alpha, blasint lda,
blasint inc_b, double *beta, blasint inc_c, blasint ldm)
{
blasint i;
// Trans param for gemv (can use any, since the input matrix is symmetric)
char trans = 'N';
// Symmetric band packed matrix for sbmv
double *a = (double*) malloc(lda * n * 2 * sizeof(double));
// Fill symmetric packed matrix sp_matrix, vector b_test, vector c_test
drand_generate(data_zsbmv.sp_matrix, n * (n + 1));
drand_generate(data_zsbmv.b_test, n * inc_b * 2);
drand_generate(data_zsbmv.c_test, n * inc_c * 2);
// Copy vector c_test for zgemv
for (i = 0; i < n * inc_c * 2; i++)
data_zsbmv.c_verify[i] = data_zsbmv.c_test[i];
// Generate full-storage symmetric band matrix
// with k super-diagonals from symmetric packed matrix
get_symmetric_band_matr(data_zsbmv.sb_matrix, data_zsbmv.sp_matrix, n, k);
// Transform symmetric band matrix from conventional
// full matrix storage to band storage for zsbmv
transform_to_band_storage(uplo, n, k, a, lda, data_zsbmv.sb_matrix, ldm);
BLASFUNC(zgemv)(&trans, &n, &n, alpha, data_zsbmv.sb_matrix, &ldm, data_zsbmv.b_test,
&inc_b, beta, data_zsbmv.c_verify, &inc_c);
BLASFUNC(zsbmv)(&uplo, &n, &k, alpha, a, &lda,
data_zsbmv.b_test, &inc_b, beta, data_zsbmv.c_test, &inc_c);
free(a);
// Find the differences between output vector caculated by zsbmv and zgemv
for (i = 0; i < n * inc_c * 2; i++)
data_zsbmv.c_test[i] -= data_zsbmv.c_verify[i];
// Find the norm of differences
return BLASFUNC(dznrm2)(&n, data_zsbmv.c_test, &inc_c);
}
/**
* Test zsbmv by comparing it against zgemv
* with the following options:
*
* a is upper-band-packed symmetric matrix
* Number of rows and columns of A is 100
* Stride of vector b_test is 1
* Stride of vector c_test is 1
* Number of super-diagonals k is 0
*/
CTEST(zsbmv, upper_k_0_inc_b_1_inc_c_1_n_100)
{
blasint n = DATASIZE, inc_b = 1, inc_c = 1;
blasint k = 0;
blasint lda = k + 1;
blasint ldm = n;
char uplo = 'U';
double alpha[] = {1.0, 1.0};
double beta[] = {1.0, 1.0};
double norm = check_zsbmv(uplo, n, k, alpha, lda, inc_b, beta, inc_c, ldm);
ASSERT_DBL_NEAR_TOL(0.0, norm, DOUBLE_EPS_ZGEMV);
}
/**
* Test zsbmv by comparing it against zgemv
* with the following options:
*
* a is upper-band-packed symmetric matrix
* Number of rows and columns of A is 100
* Stride of vector b_test is 1
* Stride of vector c_test is 1
* Number of super-diagonals k is 1
*/
CTEST(zsbmv, upper_k_1_inc_b_1_inc_c_1_n_100)
{
blasint n = DATASIZE, inc_b = 1, inc_c = 1;
blasint k = 1;
blasint lda = k + 1;
blasint ldm = n;
char uplo = 'U';
double alpha[] = {1.0, 1.0};
double beta[] = {1.0, 1.0};
double norm = check_zsbmv(uplo, n, k, alpha, lda, inc_b, beta, inc_c, ldm);
ASSERT_DBL_NEAR_TOL(0.0, norm, DOUBLE_EPS_ZGEMV);
}
/**
* Test zsbmv by comparing it against zgemv
* with the following options:
*
* a is upper-band-packed symmetric matrix
* Number of rows and columns of A is 100
* Stride of vector b_test is 1
* Stride of vector c_test is 1
* Number of super-diagonals k is 2
*/
CTEST(zsbmv, upper_k_2_inc_b_1_inc_c_1_n_100)
{
blasint n = DATASIZE, inc_b = 1, inc_c = 1;
blasint k = 2;
blasint lda = k + 1;
blasint ldm = n;
char uplo = 'U';
double alpha[] = {1.0, 1.0};
double beta[] = {1.0, 1.0};
double norm = check_zsbmv(uplo, n, k, alpha, lda, inc_b, beta, inc_c, ldm);
ASSERT_DBL_NEAR_TOL(0.0, norm, DOUBLE_EPS_ZGEMV);
}
/**
* Test zsbmv by comparing it against zgemv
* with the following options:
*
* a is upper-band-packed symmetric matrix
* Number of rows and columns of A is 100
* Stride of vector b_test is 2
* Stride of vector c_test is 1
* Number of super-diagonals k is 2
*/
CTEST(zsbmv, upper_k_2_inc_b_2_inc_c_1_n_100)
{
blasint n = DATASIZE, inc_b = 2, inc_c = 1;
blasint k = 2;
blasint lda = k + 1;
blasint ldm = n;
char uplo = 'U';
double alpha[] = {2.0, 1.0};
double beta[] = {2.0, 1.0};
double norm = check_zsbmv(uplo, n, k, alpha, lda, inc_b, beta, inc_c, ldm);
ASSERT_DBL_NEAR_TOL(0.0, norm, DOUBLE_EPS_ZGEMV);
}
/**
* Test zsbmv by comparing it against zgemv
* with the following options:
*
* a is upper-band-packed symmetric matrix
* Number of rows and columns of A is 100
* Stride of vector b_test is 2
* Stride of vector c_test is 2
* Number of super-diagonals k is 2
*/
CTEST(zsbmv, upper_k_2_inc_b_2_inc_c_2_n_100)
{
blasint n = DATASIZE, inc_b = 2, inc_c = 2;
blasint k = 2;
blasint lda = k + 1;
blasint ldm = n;
char uplo = 'U';
double alpha[] = {2.0, 1.0};
double beta[] = {2.0, 1.0};
double norm = check_zsbmv(uplo, n, k, alpha, lda, inc_b, beta, inc_c, ldm);
ASSERT_DBL_NEAR_TOL(0.0, norm, DOUBLE_EPS_ZGEMV);
}
/**
* Test zsbmv by comparing it against zgemv
* with the following options:
*
* a is lower-band-packed symmetric matrix
* Number of rows and columns of A is 100
* Stride of vector b_test is 1
* Stride of vector c_test is 1
* Number of super-diagonals k is 0
*/
CTEST(zsbmv, lower_k_0_inc_b_1_inc_c_1_n_100)
{
blasint n = DATASIZE, inc_b = 1, inc_c = 1;
blasint k = 0;
blasint lda = k + 1;
blasint ldm = n;
char uplo = 'L';
double alpha[] = {1.0, 1.0};
double beta[] = {1.0, 1.0};
double norm = check_zsbmv(uplo, n, k, alpha, lda, inc_b, beta, inc_c, ldm);
ASSERT_DBL_NEAR_TOL(0.0, norm, DOUBLE_EPS_ZGEMV);
}
/**
* Test zsbmv by comparing it against zgemv
* with the following options:
*
* a is lower-band-packed symmetric matrix
* Number of rows and columns of A is 100
* Stride of vector b_test is 1
* Stride of vector c_test is 1
* Number of super-diagonals k is 1
*/
CTEST(zsbmv, lower_k_1_inc_b_1_inc_c_1_n_100)
{
blasint n = DATASIZE, inc_b = 1, inc_c = 1;
blasint k = 1;
blasint lda = k + 1;
blasint ldm = n;
char uplo = 'L';
double alpha[] = {1.0, 1.0};
double beta[] = {1.0, 1.0};
double norm = check_zsbmv(uplo, n, k, alpha, lda, inc_b, beta, inc_c, ldm);
ASSERT_DBL_NEAR_TOL(0.0, norm, DOUBLE_EPS_ZGEMV);
}
/**
* Test zsbmv by comparing it against zgemv
* with the following options:
*
* a is lower-band-packed symmetric matrix
* Number of rows and columns of A is 100
* Stride of vector b_test is 1
* Stride of vector c_test is 1
* Number of super-diagonals k is 2
*/
CTEST(zsbmv, lower_k_2_inc_b_1_inc_c_1_n_100)
{
blasint n = DATASIZE, inc_b = 1, inc_c = 1;
blasint k = 2;
blasint lda = k + 1;
blasint ldm = n;
char uplo = 'L';
double alpha[] = {1.0, 1.0};
double beta[] = {1.0, 1.0};
double norm = check_zsbmv(uplo, n, k, alpha, lda, inc_b, beta, inc_c, ldm);
ASSERT_DBL_NEAR_TOL(0.0, norm, DOUBLE_EPS_ZGEMV);
}
/**
* Test zsbmv by comparing it against zgemv
* with the following options:
*
* a is lower-band-packed symmetric matrix
* Number of rows and columns of A is 100
* Stride of vector b_test is 2
* Stride of vector c_test is 1
* Number of super-diagonals k is 2
*/
CTEST(zsbmv, lower_k_2_inc_b_2_inc_c_1_n_100)
{
blasint n = DATASIZE, inc_b = 2, inc_c = 1;
blasint k = 2;
blasint lda = k + 1;
blasint ldm = n;
char uplo = 'L';
double alpha[] = {2.0, 1.0};
double beta[] = {2.0, 1.0};
double norm = check_zsbmv(uplo, n, k, alpha, lda, inc_b, beta, inc_c, ldm);
ASSERT_DBL_NEAR_TOL(0.0, norm, DOUBLE_EPS_ZGEMV);
}
/**
* Test zsbmv by comparing it against zgemv
* with the following options:
*
* a is lower-band-packed symmetric matrix
* Number of rows and columns of A is 100
* Stride of vector b_test is 2
* Stride of vector c_test is 2
* Number of super-diagonals k is 2
*/
CTEST(zsbmv, lower_k_2_inc_b_2_inc_c_2_n_100)
{
blasint n = DATASIZE, inc_b = 2, inc_c = 2;
blasint k = 2;
blasint lda = k + 1;
blasint ldm = n;
char uplo = 'L';
double alpha[] = {2.0, 1.0};
double beta[] = {2.0, 1.0};
double norm = check_zsbmv(uplo, n, k, alpha, lda, inc_b, beta, inc_c, ldm);
ASSERT_DBL_NEAR_TOL(0.0, norm, DOUBLE_EPS_ZGEMV);
}
/**
* Check if output matrix a contains any NaNs
*/
CTEST(zsbmv, check_for_NaN)
{
blasint n = DATASIZE, inc_b = 1, inc_c = 1;
blasint k = 0;
blasint lda = k + 1;
blasint ldm = n;
char uplo = 'U';
double alpha[] = {1.0, 1.0};
double beta[] = {1.0, 1.0};
double norm = check_zsbmv(uplo, n, k, alpha, lda, inc_b, beta, inc_c, ldm);
ASSERT_TRUE(norm == norm); /* NaN == NaN is false */
}
/**
* Test error function for an invalid param uplo.
* Uplo specifies whether a is in upper (U) or lower (L) band-packed storage mode.
*/
CTEST(zsbmv, xerbla_uplo_invalid)
{
blasint n = 1, inc_b = 1, inc_c = 1;
char uplo = 'O';
blasint k = 0;
blasint lda = k + 1;
int expected_info = 1;
int passed = check_badargs(uplo, n, k, lda, inc_b, inc_c, expected_info);
ASSERT_EQUAL(TRUE, passed);
}
/**
* Test error function for an invalid param N -
* number of rows and columns of A. Must be at least zero.
*/
CTEST(zsbmv, xerbla_n_invalid)
{
blasint n = INVALID, inc_b = 1, inc_c = 1;
char uplo = 'U';
blasint k = 0;
blasint lda = k + 1;
int expected_info = 2;
int passed = check_badargs(uplo, n, k, lda, inc_b, inc_c, expected_info);
ASSERT_EQUAL(TRUE, passed);
}
/**
* Check if n - number of rows and columns of A equal zero.
*/
CTEST(zsbmv, check_n_zero)
{
blasint n = 0, inc_b = 1, inc_c = 1;
blasint k = 0;
blasint lda = k + 1;
blasint ldm = 1;
char uplo = 'U';
double alpha[] = {1.0, 1.0};
double beta[] = {0.0, 0.0};
double norm = check_zsbmv(uplo, n, k, alpha, lda, inc_b, beta, inc_c, ldm);
ASSERT_DBL_NEAR_TOL(0.0, norm, DOUBLE_EPS_ZGEMV);
}
/**
* Test error function for an invalid param inc_b -
* stride of vector b_test. Can't be zero.
*/
CTEST(zsbmv, xerbla_inc_b_zero)
{
blasint n = 1, inc_b = 0, inc_c = 1;
char uplo = 'U';
blasint k = 0;
blasint lda = k + 1;
int expected_info = 8;
int passed = check_badargs(uplo, n, k, lda, inc_b, inc_c, expected_info);
ASSERT_EQUAL(TRUE, passed);
}
/**
* Test error function for an invalid param inc_c -
* stride of vector c_test. Can't be zero.
*/
CTEST(zsbmv, xerbla_inc_c_zero)
{
blasint n = 1, inc_b = 1, inc_c = 0;
char uplo = 'U';
blasint k = 0;
blasint lda = k + 1;
int expected_info = 11;
int passed = check_badargs(uplo, n, k, lda, inc_b, inc_c, expected_info);
ASSERT_EQUAL(TRUE, passed);
}
/**
* Test error function for an invalid param k -
* number of super-diagonals of A. Must be at least zero.
*/
CTEST(zsbmv, xerbla_k_invalid)
{
blasint n = 1, inc_b = 1, inc_c = 1;
char uplo = 'U';
blasint k = INVALID;
blasint lda = 1;
int expected_info = 3;
int passed = check_badargs(uplo, n, k, lda, inc_b, inc_c, expected_info);
ASSERT_EQUAL(TRUE, passed);
}
/**
* Test error function for an invalid param lda -
* specifies the leading dimension of a. Must be at least (k+1).
*/
CTEST(zsbmv, xerbla_lda_invalid)
{
blasint n = 1, inc_b = 1, inc_c = 1;
char uplo = 'U';
blasint k = 0;
blasint lda = INVALID;
int expected_info = 6;
int passed = check_badargs(uplo, n, k, lda, inc_b, inc_c, expected_info);
ASSERT_EQUAL(TRUE, passed);
}
#endif