LAPACK 3.11.0
LAPACK: Linear Algebra PACKage
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◆ LAPACKE_cgbrfsx_work()

lapack_int LAPACKE_cgbrfsx_work ( int  matrix_layout,
char  trans,
char  equed,
lapack_int  n,
lapack_int  kl,
lapack_int  ku,
lapack_int  nrhs,
const lapack_complex_float *  ab,
lapack_int  ldab,
const lapack_complex_float *  afb,
lapack_int  ldafb,
const lapack_int *  ipiv,
const float *  r,
const float *  c,
const lapack_complex_float *  b,
lapack_int  ldb,
lapack_complex_float *  x,
lapack_int  ldx,
float *  rcond,
float *  berr,
lapack_int  n_err_bnds,
float *  err_bnds_norm,
float *  err_bnds_comp,
lapack_int  nparams,
float *  params,
lapack_complex_float *  work,
float *  rwork 
)

Definition at line 35 of file lapacke_cgbrfsx_work.c.

50{
51 lapack_int info = 0;
52 if( matrix_layout == LAPACK_COL_MAJOR ) {
53 /* Call LAPACK function and adjust info */
54 LAPACK_cgbrfsx( &trans, &equed, &n, &kl, &ku, &nrhs, ab, &ldab, afb,
55 &ldafb, ipiv, r, c, b, &ldb, x, &ldx, rcond, berr,
56 &n_err_bnds, err_bnds_norm, err_bnds_comp, &nparams,
57 params, work, rwork, &info );
58 if( info < 0 ) {
59 info = info - 1;
60 }
61 } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
62 lapack_int ldab_t = MAX(1,kl+ku+1);
63 lapack_int ldafb_t = MAX(1,2*kl+ku+1);
64 lapack_int ldb_t = MAX(1,n);
65 lapack_int ldx_t = MAX(1,n);
66 lapack_complex_float* ab_t = NULL;
67 lapack_complex_float* afb_t = NULL;
68 lapack_complex_float* b_t = NULL;
69 lapack_complex_float* x_t = NULL;
70 float* err_bnds_norm_t = NULL;
71 float* err_bnds_comp_t = NULL;
72 /* Check leading dimension(s) */
73 if( ldab < n ) {
74 info = -9;
75 LAPACKE_xerbla( "LAPACKE_cgbrfsx_work", info );
76 return info;
77 }
78 if( ldafb < n ) {
79 info = -11;
80 LAPACKE_xerbla( "LAPACKE_cgbrfsx_work", info );
81 return info;
82 }
83 if( ldb < nrhs ) {
84 info = -16;
85 LAPACKE_xerbla( "LAPACKE_cgbrfsx_work", info );
86 return info;
87 }
88 if( ldx < nrhs ) {
89 info = -18;
90 LAPACKE_xerbla( "LAPACKE_cgbrfsx_work", info );
91 return info;
92 }
93 /* Allocate memory for temporary array(s) */
94 ab_t = (lapack_complex_float*)
95 LAPACKE_malloc( sizeof(lapack_complex_float) * ldab_t * MAX(1,n) );
96 if( ab_t == NULL ) {
97 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
98 goto exit_level_0;
99 }
100 afb_t = (lapack_complex_float*)
101 LAPACKE_malloc( sizeof(lapack_complex_float) * ldafb_t * MAX(1,n) );
102 if( afb_t == NULL ) {
103 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
104 goto exit_level_1;
105 }
106 b_t = (lapack_complex_float*)
107 LAPACKE_malloc( sizeof(lapack_complex_float) *
108 ldb_t * MAX(1,nrhs) );
109 if( b_t == NULL ) {
110 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
111 goto exit_level_2;
112 }
113 x_t = (lapack_complex_float*)
114 LAPACKE_malloc( sizeof(lapack_complex_float) *
115 ldx_t * MAX(1,nrhs) );
116 if( x_t == NULL ) {
117 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
118 goto exit_level_3;
119 }
120 err_bnds_norm_t = (float*)
121 LAPACKE_malloc( sizeof(float) * nrhs * MAX(1,n_err_bnds) );
122 if( err_bnds_norm_t == NULL ) {
123 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
124 goto exit_level_4;
125 }
126 err_bnds_comp_t = (float*)
127 LAPACKE_malloc( sizeof(float) * nrhs * MAX(1,n_err_bnds) );
128 if( err_bnds_comp_t == NULL ) {
129 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
130 goto exit_level_5;
131 }
132 /* Transpose input matrices */
133 LAPACKE_cgb_trans( matrix_layout, n, n, kl, ku, ab, ldab, ab_t, ldab_t );
134 LAPACKE_cgb_trans( matrix_layout, n, n, kl, kl+ku, afb, ldafb, afb_t,
135 ldafb_t );
136 LAPACKE_cge_trans( matrix_layout, n, nrhs, b, ldb, b_t, ldb_t );
137 LAPACKE_cge_trans( matrix_layout, n, nrhs, x, ldx, x_t, ldx_t );
138 /* Call LAPACK function and adjust info */
139 LAPACK_cgbrfsx( &trans, &equed, &n, &kl, &ku, &nrhs, ab_t, &ldab_t,
140 afb_t, &ldafb_t, ipiv, r, c, b_t, &ldb_t, x_t, &ldx_t,
141 rcond, berr, &n_err_bnds, err_bnds_norm_t,
142 err_bnds_comp_t, &nparams, params, work, rwork, &info );
143 if( info < 0 ) {
144 info = info - 1;
145 }
146 /* Transpose output matrices */
147 LAPACKE_cge_trans( LAPACK_COL_MAJOR, n, nrhs, x_t, ldx_t, x, ldx );
148 LAPACKE_sge_trans( LAPACK_COL_MAJOR, nrhs, n_err_bnds, err_bnds_norm_t,
149 nrhs, err_bnds_norm, nrhs );
150 LAPACKE_sge_trans( LAPACK_COL_MAJOR, nrhs, n_err_bnds, err_bnds_comp_t,
151 nrhs, err_bnds_comp, nrhs );
152 /* Release memory and exit */
153 LAPACKE_free( err_bnds_comp_t );
154exit_level_5:
155 LAPACKE_free( err_bnds_norm_t );
156exit_level_4:
157 LAPACKE_free( x_t );
158exit_level_3:
159 LAPACKE_free( b_t );
160exit_level_2:
161 LAPACKE_free( afb_t );
162exit_level_1:
163 LAPACKE_free( ab_t );
164exit_level_0:
165 if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
166 LAPACKE_xerbla( "LAPACKE_cgbrfsx_work", info );
167 }
168 } else {
169 info = -1;
170 LAPACKE_xerbla( "LAPACKE_cgbrfsx_work", info );
171 }
172 return info;
173}
lapack_int
#define lapack_int
Definition: lapack.h:87
lapack_complex_float
#define lapack_complex_float
Definition: lapack.h:46
LAPACK_cgbrfsx
#define LAPACK_cgbrfsx(...)
Definition: lapack.h:851
LAPACK_COL_MAJOR
#define LAPACK_COL_MAJOR
Definition: lapacke.h:53
LAPACKE_free
#define LAPACKE_free(p)
Definition: lapacke.h:46
LAPACK_ROW_MAJOR
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:52
LAPACKE_malloc
#define LAPACKE_malloc(size)
Definition: lapacke.h:43
LAPACK_TRANSPOSE_MEMORY_ERROR
#define LAPACK_TRANSPOSE_MEMORY_ERROR
Definition: lapacke.h:56
LAPACKE_xerbla
void LAPACKE_xerbla(const char *name, lapack_int info)
Definition: lapacke_xerbla.c:36
LAPACKE_cgb_trans
void LAPACKE_cgb_trans(int matrix_layout, lapack_int m, lapack_int n, lapack_int kl, lapack_int ku, const lapack_complex_float *in, lapack_int ldin, lapack_complex_float *out, lapack_int ldout)
Definition: lapacke_cgb_trans.c:39
LAPACKE_sge_trans
void LAPACKE_sge_trans(int matrix_layout, lapack_int m, lapack_int n, const float *in, lapack_int ldin, float *out, lapack_int ldout)
Definition: lapacke_sge_trans.c:39
MAX
#define MAX(x, y)
Definition: lapacke_utils.h:46
LAPACKE_cge_trans
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)
Definition: lapacke_cge_trans.c:39
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