LAPACK 3.11.0
LAPACK: Linear Algebra PACKage
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◆ LAPACKE_sgghd3_work()

lapack_int LAPACKE_sgghd3_work ( int  matrix_layout,
char  compq,
char  compz,
lapack_int  n,
lapack_int  ilo,
lapack_int  ihi,
float *  a,
lapack_int  lda,
float *  b,
lapack_int  ldb,
float *  q,
lapack_int  ldq,
float *  z,
lapack_int  ldz,
float *  work,
lapack_int  lwork 
)

Definition at line 35 of file lapacke_sgghd3_work.c.

41{
42 lapack_int info = 0;
43 if( matrix_layout == LAPACK_COL_MAJOR ) {
44 /* Call LAPACK function and adjust info */
45 LAPACK_sgghd3( &compq, &compz, &n, &ilo, &ihi, a, &lda, b, &ldb, q,
46 &ldq, z, &ldz, work, &lwork, &info );
47 if( info < 0 ) {
48 info = info - 1;
49 }
50 } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
51 lapack_int lda_t = MAX(1,n);
52 lapack_int ldb_t = MAX(1,n);
53 lapack_int ldq_t = MAX(1,n);
54 lapack_int ldz_t = MAX(1,n);
55 float* a_t = NULL;
56 float* b_t = NULL;
57 float* q_t = NULL;
58 float* z_t = NULL;
59 /* Query optimal working array(s) size if requested */
60 if( lwork == -1 ) {
61 LAPACK_sgghd3( &compq, &compz, &n, &ilo, &ihi, a, &lda, b, &ldb, q,
62 &ldq, z, &ldz, work, &lwork, &info );
63 return (info < 0) ? (info - 1) : info;
64 }
65 /* Check leading dimension(s) */
66 if( lda < n ) {
67 info = -8;
68 LAPACKE_xerbla( "LAPACKE_sgghd3_work", info );
69 return info;
70 }
71 if( ldb < n ) {
72 info = -10;
73 LAPACKE_xerbla( "LAPACKE_sgghd3_work", info );
74 return info;
75 }
76 if( ldq < n ) {
77 info = -12;
78 LAPACKE_xerbla( "LAPACKE_sgghd3_work", info );
79 return info;
80 }
81 if( ldz < n ) {
82 info = -14;
83 LAPACKE_xerbla( "LAPACKE_sgghd3_work", info );
84 return info;
85 }
86 /* Allocate memory for temporary array(s) */
87 a_t = (float*)LAPACKE_malloc( sizeof(float) * lda_t * MAX(1,n) );
88 if( a_t == NULL ) {
89 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
90 goto exit_level_0;
91 }
92 b_t = (float*)LAPACKE_malloc( sizeof(float) * ldb_t * MAX(1,n) );
93 if( b_t == NULL ) {
94 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
95 goto exit_level_1;
96 }
97 if( LAPACKE_lsame( compq, 'i' ) || LAPACKE_lsame( compq, 'v' ) ) {
98 q_t = (float*)LAPACKE_malloc( sizeof(float) * ldq_t * MAX(1,n) );
99 if( q_t == NULL ) {
100 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
101 goto exit_level_2;
102 }
103 }
104 if( LAPACKE_lsame( compz, 'i' ) || LAPACKE_lsame( compz, 'v' ) ) {
105 z_t = (float*)LAPACKE_malloc( sizeof(float) * ldz_t * MAX(1,n) );
106 if( z_t == NULL ) {
107 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
108 goto exit_level_3;
109 }
110 }
111 /* Transpose input matrices */
112 LAPACKE_sge_trans( matrix_layout, n, n, a, lda, a_t, lda_t );
113 LAPACKE_sge_trans( matrix_layout, n, n, b, ldb, b_t, ldb_t );
114 if( LAPACKE_lsame( compq, 'v' ) ) {
115 LAPACKE_sge_trans( matrix_layout, n, n, q, ldq, q_t, ldq_t );
116 }
117 if( LAPACKE_lsame( compz, 'v' ) ) {
118 LAPACKE_sge_trans( matrix_layout, n, n, z, ldz, z_t, ldz_t );
119 }
120 /* Call LAPACK function and adjust info */
121 LAPACK_sgghd3( &compq, &compz, &n, &ilo, &ihi, a_t, &lda_t, b_t, &ldb_t,
122 q_t, &ldq_t, z_t, &ldz_t, work, &lwork, &info );
123 if( info < 0 ) {
124 info = info - 1;
125 }
126 /* Transpose output matrices */
127 LAPACKE_sge_trans( LAPACK_COL_MAJOR, n, n, a_t, lda_t, a, lda );
128 LAPACKE_sge_trans( LAPACK_COL_MAJOR, n, n, b_t, ldb_t, b, ldb );
129 if( LAPACKE_lsame( compq, 'i' ) || LAPACKE_lsame( compq, 'v' ) ) {
130 LAPACKE_sge_trans( LAPACK_COL_MAJOR, n, n, q_t, ldq_t, q, ldq );
131 }
132 if( LAPACKE_lsame( compz, 'i' ) || LAPACKE_lsame( compz, 'v' ) ) {
133 LAPACKE_sge_trans( LAPACK_COL_MAJOR, n, n, z_t, ldz_t, z, ldz );
134 }
135 /* Release memory and exit */
136 if( LAPACKE_lsame( compz, 'i' ) || LAPACKE_lsame( compz, 'v' ) ) {
137 LAPACKE_free( z_t );
138 }
139 exit_level_3:
140 if( LAPACKE_lsame( compq, 'i' ) || LAPACKE_lsame( compq, 'v' ) ) {
141 LAPACKE_free( q_t );
142 }
143 exit_level_2:
144 LAPACKE_free( b_t );
145 exit_level_1:
146 LAPACKE_free( a_t );
147 exit_level_0:
148 if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
149 LAPACKE_xerbla( "LAPACKE_sgghd3_work", info );
150 }
151 } else {
152 info = -1;
153 LAPACKE_xerbla( "LAPACKE_sgghd3_work", info );
154 }
155 return info;
156}
LAPACK_sgghd3
#define LAPACK_sgghd3(...)
Definition: lapack.h:5061
lapack_int
#define lapack_int
Definition: lapack.h:87
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_lsame
lapack_logical LAPACKE_lsame(char ca, char cb)
Definition: lapacke_lsame.c:35
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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