lapack_int LAPACKE_cgbtrf_work( int matrix_layout, lapack_int m, lapack_int n,
lapack_int kl, lapack_int ku,
lapack_complex_float* ab, lapack_int ldab,
lapack_int* ipiv )
{
lapack_int info = 0;
if( matrix_layout == LAPACK_COL_MAJOR ) {
/* Call LAPACK function and adjust info */
LAPACK_cgbtrf( &m, &n, &kl, &ku, ab, &ldab, ipiv, &info );
if( info < 0 ) {
info = info - 1;
}
} else if( matrix_layout == LAPACK_ROW_MAJOR ) {
lapack_int ldab_t = MAX(1,2*kl+ku+1);
lapack_complex_float* ab_t = NULL;
/* Check leading dimension(s) */
if( ldab < n ) {
info = -7;
LAPACKE_xerbla( "LAPACKE_cgbtrf_work", info );
return info;
}
/* Allocate memory for temporary array(s) */
ab_t = (lapack_complex_float*)
LAPACKE_malloc( sizeof(lapack_complex_float) * ldab_t * MAX(1,n) );
if( ab_t == NULL ) {
info = LAPACK_TRANSPOSE_MEMORY_ERROR;
goto exit_level_0;
}
/* Transpose input matrices */
LAPACKE_cgb_trans( matrix_layout, m, n, kl, kl+ku, ab, ldab, ab_t,
ldab_t );
/* Call LAPACK function and adjust info */
LAPACK_cgbtrf( &m, &n, &kl, &ku, ab_t, &ldab_t, ipiv, &info );
if( info < 0 ) {
info = info - 1;
}
/* Transpose output matrices */
LAPACKE_cgb_trans( LAPACK_COL_MAJOR, m, n, kl, kl+ku, ab_t, ldab_t, ab,
ldab );
/* Release memory and exit */
LAPACKE_free( ab_t );
exit_level_0:
if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
LAPACKE_xerbla( "LAPACKE_cgbtrf_work", info );
}
} else {
info = -1;
LAPACKE_xerbla( "LAPACKE_cgbtrf_work", info );
}
return info;
}
void LAPACKE_ctb_trans( int matrix_order, char uplo, char diag,
lapack_int n, lapack_int kd,
const lapack_complex_float *in, lapack_int ldin,
lapack_complex_float *out, lapack_int ldout )
{
lapack_logical colmaj, upper, unit;
if( in == NULL || out == NULL ) return;
colmaj = ( matrix_order == LAPACK_COL_MAJOR );
upper = LAPACKE_lsame( uplo, 'u' );
unit = LAPACKE_lsame( diag, 'u' );
if( ( !colmaj && ( matrix_order != LAPACK_ROW_MAJOR ) ) ||
( !upper && !LAPACKE_lsame( uplo, 'l' ) ) ||
( !unit && !LAPACKE_lsame( diag, 'n' ) ) ) {
/* Just exit if any of input parameters are wrong */
return;
}
if( unit ) {
/* Unit case, diagonal excluded from transposition */
if( colmaj ) {
if( upper ) {
LAPACKE_cgb_trans( matrix_order, n-1, n-1, 0, kd-1,
&in[ldin], ldin, &out[1], ldout );
} else {
LAPACKE_cgb_trans( matrix_order, n-1, n-1, kd-1, 0,
&in[1], ldin, &out[ldout], ldout );
}
} else {
if( upper ) {
LAPACKE_cgb_trans( matrix_order, n-1, n-1, 0, kd-1,
&in[1], ldin, &out[ldout], ldout );
} else {
LAPACKE_cgb_trans( matrix_order, n-1, n-1, kd-1, 0,
&in[ldin], ldin, &out[1], ldout );
}
}
} else {
/* Non-unit case */
if( upper ) {
LAPACKE_cgb_trans( matrix_order, n, n, 0, kd, in, ldin, out,
ldout );
} else {
LAPACKE_cgb_trans( matrix_order, n, n, kd, 0, in, ldin, out,
ldout );
}
}
}
lapack_int LAPACKE_cgbsvx_work( int matrix_layout, char fact, char trans,
lapack_int n, lapack_int kl, lapack_int ku,
lapack_int nrhs, lapack_complex_float* ab,
lapack_int ldab, lapack_complex_float* afb,
lapack_int ldafb, lapack_int* ipiv, char* equed,
float* r, float* c, 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 = 0;
if( matrix_layout == LAPACK_COL_MAJOR ) {
/* Call LAPACK function and adjust info */
LAPACK_cgbsvx( &fact, &trans, &n, &kl, &ku, &nrhs, ab, &ldab, afb,
&ldafb, ipiv, equed, r, c, b, &ldb, x, &ldx, rcond, ferr,
berr, work, rwork, &info );
if( info < 0 ) {
info = info - 1;
}
} else if( matrix_layout == LAPACK_ROW_MAJOR ) {
lapack_int ldab_t = MAX(1,kl+ku+1);
lapack_int ldafb_t = MAX(1,2*kl+ku+1);
lapack_int ldb_t = MAX(1,n);
lapack_int ldx_t = MAX(1,n);
lapack_complex_float* ab_t = NULL;
lapack_complex_float* afb_t = NULL;
lapack_complex_float* b_t = NULL;
lapack_complex_float* x_t = NULL;
/* Check leading dimension(s) */
if( ldab < n ) {
info = -9;
LAPACKE_xerbla( "LAPACKE_cgbsvx_work", info );
return info;
}
if( ldafb < n ) {
info = -11;
LAPACKE_xerbla( "LAPACKE_cgbsvx_work", info );
return info;
}
if( ldb < nrhs ) {
info = -17;
LAPACKE_xerbla( "LAPACKE_cgbsvx_work", info );
return info;
}
if( ldx < nrhs ) {
info = -19;
LAPACKE_xerbla( "LAPACKE_cgbsvx_work", info );
return info;
}
/* Allocate memory for temporary array(s) */
ab_t = (lapack_complex_float*)
LAPACKE_malloc( sizeof(lapack_complex_float) * ldab_t * MAX(1,n) );
if( ab_t == NULL ) {
info = LAPACK_TRANSPOSE_MEMORY_ERROR;
goto exit_level_0;
}
afb_t = (lapack_complex_float*)
LAPACKE_malloc( sizeof(lapack_complex_float) * ldafb_t * MAX(1,n) );
if( afb_t == NULL ) {
info = LAPACK_TRANSPOSE_MEMORY_ERROR;
goto exit_level_1;
}
b_t = (lapack_complex_float*)
LAPACKE_malloc( sizeof(lapack_complex_float) *
ldb_t * MAX(1,nrhs) );
if( b_t == NULL ) {
info = LAPACK_TRANSPOSE_MEMORY_ERROR;
goto exit_level_2;
}
x_t = (lapack_complex_float*)
LAPACKE_malloc( sizeof(lapack_complex_float) *
ldx_t * MAX(1,nrhs) );
if( x_t == NULL ) {
info = LAPACK_TRANSPOSE_MEMORY_ERROR;
goto exit_level_3;
}
/* Transpose input matrices */
LAPACKE_cgb_trans( matrix_layout, n, n, kl, ku, ab, ldab, ab_t, ldab_t );
if( LAPACKE_lsame( fact, 'f' ) ) {
LAPACKE_cgb_trans( matrix_layout, n, n, kl, kl+ku, afb, ldafb, afb_t,
ldafb_t );
}
LAPACKE_cge_trans( matrix_layout, n, nrhs, b, ldb, b_t, ldb_t );
/* Call LAPACK function and adjust info */
LAPACK_cgbsvx( &fact, &trans, &n, &kl, &ku, &nrhs, ab_t, &ldab_t, afb_t,
&ldafb_t, ipiv, equed, r, c, b_t, &ldb_t, x_t, &ldx_t,
rcond, ferr, berr, work, rwork, &info );
if( info < 0 ) {
info = info - 1;
}
/* Transpose output matrices */
if( LAPACKE_lsame( fact, 'e' ) && ( LAPACKE_lsame( *equed, 'b' ) ||
LAPACKE_lsame( *equed, 'c' ) || LAPACKE_lsame( *equed, 'r' ) ) ) {
LAPACKE_cgb_trans( LAPACK_COL_MAJOR, n, n, kl, ku, ab_t, ldab_t, ab,
ldab );
}
if( LAPACKE_lsame( fact, 'e' ) || LAPACKE_lsame( fact, 'n' ) ) {
LAPACKE_cgb_trans( LAPACK_COL_MAJOR, n, n, kl, kl+ku, afb_t,
ldafb_t, afb, ldafb );
}
if( LAPACKE_lsame( fact, 'f' ) && ( LAPACKE_lsame( *equed, 'b' ) ||
LAPACKE_lsame( *equed, 'c' ) || LAPACKE_lsame( *equed, 'r' ) ) ) {
LAPACKE_cge_trans( LAPACK_COL_MAJOR, n, nrhs, b_t, ldb_t, b, ldb );
}
LAPACKE_cge_trans( LAPACK_COL_MAJOR, n, nrhs, x_t, ldx_t, x, ldx );
/* Release memory and exit */
LAPACKE_free( x_t );
exit_level_3:
LAPACKE_free( b_t );
exit_level_2:
LAPACKE_free( afb_t );
exit_level_1:
LAPACKE_free( ab_t );
exit_level_0:
if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
LAPACKE_xerbla( "LAPACKE_cgbsvx_work", info );
}
} else {
info = -1;
LAPACKE_xerbla( "LAPACKE_cgbsvx_work", info );
}
return info;
}
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 )
{
lapack_int info = 0;
if( matrix_layout == LAPACK_COL_MAJOR ) {
/* Call LAPACK function and adjust info */
LAPACK_cgbrfsx( &trans, &equed, &n, &kl, &ku, &nrhs, ab, &ldab, afb,
&ldafb, ipiv, r, c, b, &ldb, x, &ldx, rcond, berr,
&n_err_bnds, err_bnds_norm, err_bnds_comp, &nparams,
params, work, rwork, &info );
if( info < 0 ) {
info = info - 1;
}
} else if( matrix_layout == LAPACK_ROW_MAJOR ) {
lapack_int ldab_t = MAX(1,kl+ku+1);
lapack_int ldafb_t = MAX(1,2*kl+ku+1);
lapack_int ldb_t = MAX(1,n);
lapack_int ldx_t = MAX(1,n);
lapack_complex_float* ab_t = NULL;
lapack_complex_float* afb_t = NULL;
lapack_complex_float* b_t = NULL;
lapack_complex_float* x_t = NULL;
float* err_bnds_norm_t = NULL;
float* err_bnds_comp_t = NULL;
/* Check leading dimension(s) */
if( ldab < n ) {
info = -9;
LAPACKE_xerbla( "LAPACKE_cgbrfsx_work", info );
return info;
}
if( ldafb < n ) {
info = -11;
LAPACKE_xerbla( "LAPACKE_cgbrfsx_work", info );
return info;
}
if( ldb < nrhs ) {
info = -16;
LAPACKE_xerbla( "LAPACKE_cgbrfsx_work", info );
return info;
}
if( ldx < nrhs ) {
info = -18;
LAPACKE_xerbla( "LAPACKE_cgbrfsx_work", info );
return info;
}
/* Allocate memory for temporary array(s) */
ab_t = (lapack_complex_float*)
LAPACKE_malloc( sizeof(lapack_complex_float) * ldab_t * MAX(1,n) );
if( ab_t == NULL ) {
info = LAPACK_TRANSPOSE_MEMORY_ERROR;
goto exit_level_0;
}
afb_t = (lapack_complex_float*)
LAPACKE_malloc( sizeof(lapack_complex_float) * ldafb_t * MAX(1,n) );
if( afb_t == NULL ) {
info = LAPACK_TRANSPOSE_MEMORY_ERROR;
goto exit_level_1;
}
b_t = (lapack_complex_float*)
LAPACKE_malloc( sizeof(lapack_complex_float) *
ldb_t * MAX(1,nrhs) );
if( b_t == NULL ) {
info = LAPACK_TRANSPOSE_MEMORY_ERROR;
goto exit_level_2;
}
x_t = (lapack_complex_float*)
LAPACKE_malloc( sizeof(lapack_complex_float) *
ldx_t * MAX(1,nrhs) );
if( x_t == NULL ) {
info = LAPACK_TRANSPOSE_MEMORY_ERROR;
goto exit_level_3;
}
err_bnds_norm_t = (float*)
LAPACKE_malloc( sizeof(float) * nrhs * MAX(1,n_err_bnds) );
if( err_bnds_norm_t == NULL ) {
info = LAPACK_TRANSPOSE_MEMORY_ERROR;
goto exit_level_4;
}
err_bnds_comp_t = (float*)
LAPACKE_malloc( sizeof(float) * nrhs * MAX(1,n_err_bnds) );
if( err_bnds_comp_t == NULL ) {
info = LAPACK_TRANSPOSE_MEMORY_ERROR;
goto exit_level_5;
}
/* Transpose input matrices */
LAPACKE_cgb_trans( matrix_layout, n, n, kl, ku, ab, ldab, ab_t, ldab_t );
LAPACKE_cgb_trans( matrix_layout, n, n, kl, kl+ku, afb, ldafb, afb_t,
ldafb_t );
LAPACKE_cge_trans( matrix_layout, n, nrhs, b, ldb, b_t, ldb_t );
LAPACKE_cge_trans( matrix_layout, n, nrhs, x, ldx, x_t, ldx_t );
/* Call LAPACK function and adjust info */
LAPACK_cgbrfsx( &trans, &equed, &n, &kl, &ku, &nrhs, ab_t, &ldab_t,
afb_t, &ldafb_t, ipiv, r, c, b_t, &ldb_t, x_t, &ldx_t,
rcond, berr, &n_err_bnds, err_bnds_norm_t,
err_bnds_comp_t, &nparams, params, work, rwork, &info );
if( info < 0 ) {
info = info - 1;
}
/* Transpose output matrices */
LAPACKE_cge_trans( LAPACK_COL_MAJOR, n, nrhs, x_t, ldx_t, x, ldx );
LAPACKE_sge_trans( LAPACK_COL_MAJOR, nrhs, n_err_bnds, err_bnds_norm_t,
nrhs, err_bnds_norm, nrhs );
LAPACKE_sge_trans( LAPACK_COL_MAJOR, nrhs, n_err_bnds, err_bnds_comp_t,
nrhs, err_bnds_comp, nrhs );
/* Release memory and exit */
LAPACKE_free( err_bnds_comp_t );
exit_level_5:
LAPACKE_free( err_bnds_norm_t );
exit_level_4:
LAPACKE_free( x_t );
exit_level_3:
LAPACKE_free( b_t );
exit_level_2:
LAPACKE_free( afb_t );
exit_level_1:
LAPACKE_free( ab_t );
exit_level_0:
if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
LAPACKE_xerbla( "LAPACKE_cgbrfsx_work", info );
}
} else {
info = -1;
LAPACKE_xerbla( "LAPACKE_cgbrfsx_work", info );
}
return info;
}