LAPACK 3.11.0
LAPACK: Linear Algebra PACKage
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◆ LAPACKE_dgerfsx_work()

lapack_int LAPACKE_dgerfsx_work ( int  matrix_layout,
char  trans,
char  equed,
lapack_int  n,
lapack_int  nrhs,
const double *  a,
lapack_int  lda,
const double *  af,
lapack_int  ldaf,
const lapack_int ipiv,
const double *  r,
const double *  c,
const double *  b,
lapack_int  ldb,
double *  x,
lapack_int  ldx,
double *  rcond,
double *  berr,
lapack_int  n_err_bnds,
double *  err_bnds_norm,
double *  err_bnds_comp,
lapack_int  nparams,
double *  params,
double *  work,
lapack_int iwork 
)

Definition at line 35 of file lapacke_dgerfsx_work.c.

46{
47 lapack_int info = 0;
48 if( matrix_layout == LAPACK_COL_MAJOR ) {
49 /* Call LAPACK function and adjust info */
50 LAPACK_dgerfsx( &trans, &equed, &n, &nrhs, a, &lda, af, &ldaf, ipiv, r,
51 c, b, &ldb, x, &ldx, rcond, berr, &n_err_bnds,
52 err_bnds_norm, err_bnds_comp, &nparams, params, work,
53 iwork, &info );
54 if( info < 0 ) {
55 info = info - 1;
56 }
57 } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
58 lapack_int lda_t = MAX(1,n);
59 lapack_int ldaf_t = MAX(1,n);
60 lapack_int ldb_t = MAX(1,n);
61 lapack_int ldx_t = MAX(1,n);
62 double* a_t = NULL;
63 double* af_t = NULL;
64 double* b_t = NULL;
65 double* x_t = NULL;
66 double* err_bnds_norm_t = NULL;
67 double* err_bnds_comp_t = NULL;
68 /* Check leading dimension(s) */
69 if( lda < n ) {
70 info = -7;
71 LAPACKE_xerbla( "LAPACKE_dgerfsx_work", info );
72 return info;
73 }
74 if( ldaf < n ) {
75 info = -9;
76 LAPACKE_xerbla( "LAPACKE_dgerfsx_work", info );
77 return info;
78 }
79 if( ldb < nrhs ) {
80 info = -14;
81 LAPACKE_xerbla( "LAPACKE_dgerfsx_work", info );
82 return info;
83 }
84 if( ldx < nrhs ) {
85 info = -16;
86 LAPACKE_xerbla( "LAPACKE_dgerfsx_work", info );
87 return info;
88 }
89 /* Allocate memory for temporary array(s) */
90 a_t = (double*)LAPACKE_malloc( sizeof(double) * lda_t * MAX(1,n) );
91 if( a_t == NULL ) {
93 goto exit_level_0;
94 }
95 af_t = (double*)LAPACKE_malloc( sizeof(double) * ldaf_t * MAX(1,n) );
96 if( af_t == NULL ) {
98 goto exit_level_1;
99 }
100 b_t = (double*)LAPACKE_malloc( sizeof(double) * ldb_t * MAX(1,nrhs) );
101 if( b_t == NULL ) {
103 goto exit_level_2;
104 }
105 x_t = (double*)LAPACKE_malloc( sizeof(double) * ldx_t * MAX(1,nrhs) );
106 if( x_t == NULL ) {
108 goto exit_level_3;
109 }
110 err_bnds_norm_t = (double*)
111 LAPACKE_malloc( sizeof(double) * nrhs * MAX(1,n_err_bnds) );
112 if( err_bnds_norm_t == NULL ) {
114 goto exit_level_4;
115 }
116 err_bnds_comp_t = (double*)
117 LAPACKE_malloc( sizeof(double) * nrhs * MAX(1,n_err_bnds) );
118 if( err_bnds_comp_t == NULL ) {
120 goto exit_level_5;
121 }
122 /* Transpose input matrices */
123 LAPACKE_dge_trans( matrix_layout, n, n, a, lda, a_t, lda_t );
124 LAPACKE_dge_trans( matrix_layout, n, n, af, ldaf, af_t, ldaf_t );
125 LAPACKE_dge_trans( matrix_layout, n, nrhs, b, ldb, b_t, ldb_t );
126 LAPACKE_dge_trans( matrix_layout, n, nrhs, x, ldx, x_t, ldx_t );
127 /* Call LAPACK function and adjust info */
128 LAPACK_dgerfsx( &trans, &equed, &n, &nrhs, a_t, &lda_t, af_t, &ldaf_t,
129 ipiv, r, c, b_t, &ldb_t, x_t, &ldx_t, rcond, berr,
130 &n_err_bnds, err_bnds_norm_t, err_bnds_comp_t, &nparams,
131 params, work, iwork, &info );
132 if( info < 0 ) {
133 info = info - 1;
134 }
135 /* Transpose output matrices */
136 LAPACKE_dge_trans( LAPACK_COL_MAJOR, n, nrhs, x_t, ldx_t, x, ldx );
137 LAPACKE_dge_trans( LAPACK_COL_MAJOR, nrhs, n_err_bnds, err_bnds_norm_t,
138 nrhs, err_bnds_norm, nrhs );
139 LAPACKE_dge_trans( LAPACK_COL_MAJOR, nrhs, n_err_bnds, err_bnds_comp_t,
140 nrhs, err_bnds_comp, nrhs );
141 /* Release memory and exit */
142 LAPACKE_free( err_bnds_comp_t );
143exit_level_5:
144 LAPACKE_free( err_bnds_norm_t );
145exit_level_4:
146 LAPACKE_free( x_t );
147exit_level_3:
148 LAPACKE_free( b_t );
149exit_level_2:
150 LAPACKE_free( af_t );
151exit_level_1:
152 LAPACKE_free( a_t );
153exit_level_0:
154 if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
155 LAPACKE_xerbla( "LAPACKE_dgerfsx_work", info );
156 }
157 } else {
158 info = -1;
159 LAPACKE_xerbla( "LAPACKE_dgerfsx_work", info );
160 }
161 return info;
162}
#define lapack_int
Definition: lapack.h:87
#define LAPACK_dgerfsx(...)
Definition: lapack.h:3111
#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 MAX(x, y)
Definition: lapacke_utils.h:46
void LAPACKE_dge_trans(int matrix_layout, lapack_int m, lapack_int n, const double *in, lapack_int ldin, double *out, lapack_int ldout)
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