LAPACK  3.7.1
LAPACK: Linear Algebra PACKage

◆ LAPACKE_cpbsvx_work()

lapack_int LAPACKE_cpbsvx_work ( int  matrix_layout,
char  fact,
char  uplo,
lapack_int  n,
lapack_int  kd,
lapack_int  nrhs,
lapack_complex_float ab,
lapack_int  ldab,
lapack_complex_float afb,
lapack_int  ldafb,
char *  equed,
float *  s,
lapack_complex_float b,
lapack_int  ldb,
lapack_complex_float x,
lapack_int  ldx,
float *  rcond,
float *  ferr,
float *  berr,
lapack_complex_float work,
float *  rwork 
)

Definition at line 36 of file lapacke_cpbsvx_work.c.

45 {
46  lapack_int info = 0;
47  if( matrix_layout == LAPACK_COL_MAJOR ) {
48  /* Call LAPACK function and adjust info */
49  LAPACK_cpbsvx( &fact, &uplo, &n, &kd, &nrhs, ab, &ldab, afb, &ldafb,
50  equed, s, b, &ldb, x, &ldx, rcond, ferr, berr, work,
51  rwork, &info );
52  if( info < 0 ) {
53  info = info - 1;
54  }
55  } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
56  lapack_int ldab_t = MAX(1,kd+1);
57  lapack_int ldafb_t = MAX(1,kd+1);
58  lapack_int ldb_t = MAX(1,n);
59  lapack_int ldx_t = MAX(1,n);
60  lapack_complex_float* ab_t = NULL;
61  lapack_complex_float* afb_t = NULL;
62  lapack_complex_float* b_t = NULL;
63  lapack_complex_float* x_t = NULL;
64  /* Check leading dimension(s) */
65  if( ldab < n ) {
66  info = -8;
67  LAPACKE_xerbla( "LAPACKE_cpbsvx_work", info );
68  return info;
69  }
70  if( ldafb < n ) {
71  info = -10;
72  LAPACKE_xerbla( "LAPACKE_cpbsvx_work", info );
73  return info;
74  }
75  if( ldb < nrhs ) {
76  info = -14;
77  LAPACKE_xerbla( "LAPACKE_cpbsvx_work", info );
78  return info;
79  }
80  if( ldx < nrhs ) {
81  info = -16;
82  LAPACKE_xerbla( "LAPACKE_cpbsvx_work", info );
83  return info;
84  }
85  /* Allocate memory for temporary array(s) */
86  ab_t = (lapack_complex_float*)
87  LAPACKE_malloc( sizeof(lapack_complex_float) * ldab_t * MAX(1,n) );
88  if( ab_t == NULL ) {
90  goto exit_level_0;
91  }
92  afb_t = (lapack_complex_float*)
93  LAPACKE_malloc( sizeof(lapack_complex_float) * ldafb_t * MAX(1,n) );
94  if( afb_t == NULL ) {
96  goto exit_level_1;
97  }
98  b_t = (lapack_complex_float*)
100  ldb_t * MAX(1,nrhs) );
101  if( b_t == NULL ) {
103  goto exit_level_2;
104  }
105  x_t = (lapack_complex_float*)
107  ldx_t * MAX(1,nrhs) );
108  if( x_t == NULL ) {
110  goto exit_level_3;
111  }
112  /* Transpose input matrices */
113  LAPACKE_cpb_trans( matrix_layout, uplo, n, kd, ab, ldab, ab_t, ldab_t );
114  if( LAPACKE_lsame( fact, 'f' ) ) {
115  LAPACKE_cpb_trans( matrix_layout, uplo, n, kd, afb, ldafb, afb_t,
116  ldafb_t );
117  }
118  LAPACKE_cge_trans( matrix_layout, n, nrhs, b, ldb, b_t, ldb_t );
119  /* Call LAPACK function and adjust info */
120  LAPACK_cpbsvx( &fact, &uplo, &n, &kd, &nrhs, ab_t, &ldab_t, afb_t,
121  &ldafb_t, equed, s, b_t, &ldb_t, x_t, &ldx_t, rcond,
122  ferr, berr, work, rwork, &info );
123  if( info < 0 ) {
124  info = info - 1;
125  }
126  /* Transpose output matrices */
127  if( LAPACKE_lsame( fact, 'e' ) && LAPACKE_lsame( *equed, 'y' ) ) {
128  LAPACKE_cpb_trans( LAPACK_COL_MAJOR, uplo, n, kd, ab_t, ldab_t, ab,
129  ldab );
130  }
131  if( LAPACKE_lsame( fact, 'e' ) || LAPACKE_lsame( fact, 'n' ) ) {
132  LAPACKE_cpb_trans( LAPACK_COL_MAJOR, uplo, n, kd, afb_t, ldafb_t,
133  afb, ldafb );
134  }
135  LAPACKE_cge_trans( LAPACK_COL_MAJOR, n, nrhs, b_t, ldb_t, b, ldb );
136  LAPACKE_cge_trans( LAPACK_COL_MAJOR, n, nrhs, x_t, ldx_t, x, ldx );
137  /* Release memory and exit */
138  LAPACKE_free( x_t );
139 exit_level_3:
140  LAPACKE_free( b_t );
141 exit_level_2:
142  LAPACKE_free( afb_t );
143 exit_level_1:
144  LAPACKE_free( ab_t );
145 exit_level_0:
146  if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
147  LAPACKE_xerbla( "LAPACKE_cpbsvx_work", info );
148  }
149  } else {
150  info = -1;
151  LAPACKE_xerbla( "LAPACKE_cpbsvx_work", info );
152  }
153  return info;
154 }
void LAPACKE_cge_trans(int matrix_layout, lapack_int m, lapack_int n, const lapack_complex_float *in, lapack_int ldin, lapack_complex_float *out, lapack_int ldout)
void LAPACKE_cpb_trans(int matrix_layout, char uplo, lapack_int n, lapack_int kd, const lapack_complex_float *in, lapack_int ldin, lapack_complex_float *out, lapack_int ldout)
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:119
#define LAPACKE_free(p)
Definition: lapacke.h:113
#define lapack_complex_float
Definition: lapacke.h:74
#define MAX(x, y)
Definition: lapacke_utils.h:47
#define LAPACKE_malloc(size)
Definition: lapacke.h:110
lapack_logical LAPACKE_lsame(char ca, char cb)
Definition: lapacke_lsame.c:36
#define LAPACK_COL_MAJOR
Definition: lapacke.h:120
void LAPACKE_xerbla(const char *name, lapack_int info)
#define lapack_int
Definition: lapacke.h:47
#define LAPACK_TRANSPOSE_MEMORY_ERROR
Definition: lapacke.h:123
void LAPACK_cpbsvx(char *fact, char *uplo, lapack_int *n, lapack_int *kd, lapack_int *nrhs, lapack_complex_float *ab, lapack_int *ldab, lapack_complex_float *afb, lapack_int *ldafb, char *equed, float *s, lapack_complex_float *b, lapack_int *ldb, lapack_complex_float *x, lapack_int *ldx, float *rcond, float *ferr, float *berr, lapack_complex_float *work, float *rwork, lapack_int *info)
Here is the call graph for this function:
Here is the caller graph for this function: