LAPACK  3.10.0
LAPACK: Linear Algebra PACKage

◆ LAPACKE_stfsm_work()

lapack_int LAPACKE_stfsm_work ( int  matrix_layout,
char  transr,
char  side,
char  uplo,
char  trans,
char  diag,
lapack_int  m,
lapack_int  n,
float  alpha,
const float *  a,
float *  b,
lapack_int  ldb 
)

Definition at line 35 of file lapacke_stfsm_work.c.

39 {
40  lapack_int info = 0;
41  if( matrix_layout == LAPACK_COL_MAJOR ) {
42  /* Call LAPACK function and adjust info */
43  LAPACK_stfsm( &transr, &side, &uplo, &trans, &diag, &m, &n, &alpha, a,
44  b, &ldb );
45  if( info < 0 ) {
46  info = info - 1;
47  }
48  } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
49  lapack_int ldb_t = MAX(1,m);
50  float* b_t = NULL;
51  float* a_t = NULL;
52  /* Check leading dimension(s) */
53  if( ldb < n ) {
54  info = -12;
55  LAPACKE_xerbla( "LAPACKE_stfsm_work", info );
56  return info;
57  }
58  /* Allocate memory for temporary array(s) */
59  b_t = (float*)LAPACKE_malloc( sizeof(float) * ldb_t * MAX(1,n) );
60  if( b_t == NULL ) {
62  goto exit_level_0;
63  }
64  if( IS_S_NONZERO(alpha) ) {
65  a_t = (float*)
66  LAPACKE_malloc( sizeof(float) * ( MAX(1,n) * MAX(2,n+1) ) / 2 );
67  if( a_t == NULL ) {
69  goto exit_level_1;
70  }
71  }
72  /* Transpose input matrices */
73  if( IS_S_NONZERO(alpha) ) {
74  LAPACKE_sge_trans( matrix_layout, m, n, b, ldb, b_t, ldb_t );
75  }
76  if( IS_S_NONZERO(alpha) ) {
77  LAPACKE_stf_trans( matrix_layout, transr, uplo, diag, n, a, a_t );
78  }
79  /* Call LAPACK function and adjust info */
80  LAPACK_stfsm( &transr, &side, &uplo, &trans, &diag, &m, &n, &alpha, a_t,
81  b_t, &ldb_t );
82  info = 0; /* LAPACK call is ok! */
83  /* Transpose output matrices */
84  LAPACKE_sge_trans( LAPACK_COL_MAJOR, m, n, b_t, ldb_t, b, ldb );
85  /* Release memory and exit */
86  if( IS_S_NONZERO(alpha) ) {
87  LAPACKE_free( a_t );
88  }
89 exit_level_1:
90  LAPACKE_free( b_t );
91 exit_level_0:
92  if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
93  LAPACKE_xerbla( "LAPACKE_stfsm_work", info );
94  }
95  } else {
96  info = -1;
97  LAPACKE_xerbla( "LAPACKE_stfsm_work", info );
98  }
99  return info;
100 }
#define lapack_int
Definition: lapack.h:83
#define LAPACK_stfsm(...)
Definition: lapack.h:19819
#define LAPACK_COL_MAJOR
Definition: lapacke.h:53
#define LAPACKE_free(p)
Definition: lapacke.h:46
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:52
#define LAPACKE_malloc(size)
Definition: lapacke.h:43
#define LAPACK_TRANSPOSE_MEMORY_ERROR
Definition: lapacke.h:56
void LAPACKE_xerbla(const char *name, lapack_int info)
#define IS_S_NONZERO(x)
Definition: lapacke_utils.h:58
void LAPACKE_stf_trans(int matrix_layout, char transr, char uplo, char diag, lapack_int n, const float *in, float *out)
void LAPACKE_sge_trans(int matrix_layout, lapack_int m, lapack_int n, const float *in, lapack_int ldin, float *out, lapack_int ldout)
#define MAX(x, y)
Definition: lapacke_utils.h:46
Here is the call graph for this function:
Here is the caller graph for this function: