LAPACK 3.11.0
LAPACK: Linear Algebra PACKage
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◆ LAPACKE_sgerfsx_work()

lapack_int LAPACKE_sgerfsx_work ( int  matrix_layout,
char  trans,
char  equed,
lapack_int  n,
lapack_int  nrhs,
const float *  a,
lapack_int  lda,
const float *  af,
lapack_int  ldaf,
const lapack_int *  ipiv,
const float *  r,
const float *  c,
const float *  b,
lapack_int  ldb,
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,
float *  work,
lapack_int *  iwork 
)

Definition at line 35 of file lapacke_sgerfsx_work.c.

45{
46 lapack_int info = 0;
47 if( matrix_layout == LAPACK_COL_MAJOR ) {
48 /* Call LAPACK function and adjust info */
49 LAPACK_sgerfsx( &trans, &equed, &n, &nrhs, a, &lda, af, &ldaf, ipiv, r,
50 c, b, &ldb, x, &ldx, rcond, berr, &n_err_bnds,
51 err_bnds_norm, err_bnds_comp, &nparams, params, work,
52 iwork, &info );
53 if( info < 0 ) {
54 info = info - 1;
55 }
56 } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
57 lapack_int lda_t = MAX(1,n);
58 lapack_int ldaf_t = MAX(1,n);
59 lapack_int ldb_t = MAX(1,n);
60 lapack_int ldx_t = MAX(1,n);
61 float* a_t = NULL;
62 float* af_t = NULL;
63 float* b_t = NULL;
64 float* x_t = NULL;
65 float* err_bnds_norm_t = NULL;
66 float* err_bnds_comp_t = NULL;
67 /* Check leading dimension(s) */
68 if( lda < n ) {
69 info = -7;
70 LAPACKE_xerbla( "LAPACKE_sgerfsx_work", info );
71 return info;
72 }
73 if( ldaf < n ) {
74 info = -9;
75 LAPACKE_xerbla( "LAPACKE_sgerfsx_work", info );
76 return info;
77 }
78 if( ldb < nrhs ) {
79 info = -14;
80 LAPACKE_xerbla( "LAPACKE_sgerfsx_work", info );
81 return info;
82 }
83 if( ldx < nrhs ) {
84 info = -16;
85 LAPACKE_xerbla( "LAPACKE_sgerfsx_work", info );
86 return info;
87 }
88 /* Allocate memory for temporary array(s) */
89 a_t = (float*)LAPACKE_malloc( sizeof(float) * lda_t * MAX(1,n) );
90 if( a_t == NULL ) {
91 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
92 goto exit_level_0;
93 }
94 af_t = (float*)LAPACKE_malloc( sizeof(float) * ldaf_t * MAX(1,n) );
95 if( af_t == NULL ) {
96 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
97 goto exit_level_1;
98 }
99 b_t = (float*)LAPACKE_malloc( sizeof(float) * ldb_t * MAX(1,nrhs) );
100 if( b_t == NULL ) {
101 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
102 goto exit_level_2;
103 }
104 x_t = (float*)LAPACKE_malloc( sizeof(float) * ldx_t * MAX(1,nrhs) );
105 if( x_t == NULL ) {
106 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
107 goto exit_level_3;
108 }
109 err_bnds_norm_t = (float*)
110 LAPACKE_malloc( sizeof(float) * nrhs * MAX(1,n_err_bnds) );
111 if( err_bnds_norm_t == NULL ) {
112 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
113 goto exit_level_4;
114 }
115 err_bnds_comp_t = (float*)
116 LAPACKE_malloc( sizeof(float) * nrhs * MAX(1,n_err_bnds) );
117 if( err_bnds_comp_t == NULL ) {
118 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
119 goto exit_level_5;
120 }
121 /* Transpose input matrices */
122 LAPACKE_sge_trans( matrix_layout, n, n, a, lda, a_t, lda_t );
123 LAPACKE_sge_trans( matrix_layout, n, n, af, ldaf, af_t, ldaf_t );
124 LAPACKE_sge_trans( matrix_layout, n, nrhs, b, ldb, b_t, ldb_t );
125 LAPACKE_sge_trans( matrix_layout, n, nrhs, x, ldx, x_t, ldx_t );
126 /* Call LAPACK function and adjust info */
127 LAPACK_sgerfsx( &trans, &equed, &n, &nrhs, a_t, &lda_t, af_t, &ldaf_t,
128 ipiv, r, c, b_t, &ldb_t, x_t, &ldx_t, rcond, berr,
129 &n_err_bnds, err_bnds_norm_t, err_bnds_comp_t, &nparams,
130 params, work, iwork, &info );
131 if( info < 0 ) {
132 info = info - 1;
133 }
134 /* Transpose output matrices */
135 LAPACKE_sge_trans( LAPACK_COL_MAJOR, n, nrhs, x_t, ldx_t, x, ldx );
136 LAPACKE_sge_trans( LAPACK_COL_MAJOR, nrhs, n_err_bnds, err_bnds_norm_t,
137 nrhs, err_bnds_norm, nrhs );
138 LAPACKE_sge_trans( LAPACK_COL_MAJOR, nrhs, n_err_bnds, err_bnds_comp_t,
139 nrhs, err_bnds_comp, nrhs );
140 /* Release memory and exit */
141 LAPACKE_free( err_bnds_comp_t );
142exit_level_5:
143 LAPACKE_free( err_bnds_norm_t );
144exit_level_4:
145 LAPACKE_free( x_t );
146exit_level_3:
147 LAPACKE_free( b_t );
148exit_level_2:
149 LAPACKE_free( af_t );
150exit_level_1:
151 LAPACKE_free( a_t );
152exit_level_0:
153 if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
154 LAPACKE_xerbla( "LAPACKE_sgerfsx_work", info );
155 }
156 } else {
157 info = -1;
158 LAPACKE_xerbla( "LAPACKE_sgerfsx_work", info );
159 }
160 return info;
161}
lapack_int
#define lapack_int
Definition: lapack.h:87
LAPACK_sgerfsx
#define LAPACK_sgerfsx(...)
Definition: lapack.h:3139
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_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
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