.TH "SRC/ssb2st_kernels.f" 3 "Version 3.12.0" "LAPACK" \" -*- nroff -*-
.ad l
.nh
.SH NAME
SRC/ssb2st_kernels.f
.SH SYNOPSIS
.br
.PP
.SS "Functions/Subroutines"

.in +1c
.ti -1c
.RI "subroutine \fBssb2st_kernels\fP (uplo, wantz, ttype, st, ed, sweep, n, nb, ib, a, lda, v, tau, ldvt, work)"
.br
.RI "\fBSSB2ST_KERNELS\fP "
.in -1c
.SH "Function/Subroutine Documentation"
.PP 
.SS "subroutine ssb2st_kernels (character uplo, logical wantz, integer ttype, integer st, integer ed, integer sweep, integer n, integer nb, integer ib, real, dimension( lda, * ) a, integer lda, real, dimension( * ) v, real, dimension( * ) tau, integer ldvt, real, dimension( * ) work)"

.PP
\fBSSB2ST_KERNELS\fP  
.PP
\fBPurpose:\fP
.RS 4

.PP
.nf
!>
!> SSB2ST_KERNELS is an internal routine used by the SSYTRD_SB2ST
!> subroutine\&.
!> 
.fi
.PP
 
.RE
.PP
\fBParameters\fP
.RS 4
\fIUPLO\fP 
.PP
.nf
!>          UPLO is CHARACTER*1
!> 
.fi
.PP
.br
\fIWANTZ\fP 
.PP
.nf
!>          WANTZ is LOGICAL which indicate if Eigenvalue are requested or both
!>          Eigenvalue/Eigenvectors\&.
!> 
.fi
.PP
.br
\fITTYPE\fP 
.PP
.nf
!>          TTYPE is INTEGER
!> 
.fi
.PP
.br
\fIST\fP 
.PP
.nf
!>          ST is INTEGER
!>          internal parameter for indices\&.
!> 
.fi
.PP
.br
\fIED\fP 
.PP
.nf
!>          ED is INTEGER
!>          internal parameter for indices\&.
!> 
.fi
.PP
.br
\fISWEEP\fP 
.PP
.nf
!>          SWEEP is INTEGER
!>          internal parameter for indices\&.
!> 
.fi
.PP
.br
\fIN\fP 
.PP
.nf
!>          N is INTEGER\&. The order of the matrix A\&.
!> 
.fi
.PP
.br
\fINB\fP 
.PP
.nf
!>          NB is INTEGER\&. The size of the band\&.
!> 
.fi
.PP
.br
\fIIB\fP 
.PP
.nf
!>          IB is INTEGER\&.
!> 
.fi
.PP
.br
\fIA\fP 
.PP
.nf
!>          A is REAL array\&. A pointer to the matrix A\&.
!> 
.fi
.PP
.br
\fILDA\fP 
.PP
.nf
!>          LDA is INTEGER\&. The leading dimension of the matrix A\&.
!> 
.fi
.PP
.br
\fIV\fP 
.PP
.nf
!>          V is REAL array, dimension 2*n if eigenvalues only are
!>          requested or to be queried for vectors\&.
!> 
.fi
.PP
.br
\fITAU\fP 
.PP
.nf
!>          TAU is REAL array, dimension (2*n)\&.
!>          The scalar factors of the Householder reflectors are stored
!>          in this array\&.
!> 
.fi
.PP
.br
\fILDVT\fP 
.PP
.nf
!>          LDVT is INTEGER\&.
!> 
.fi
.PP
.br
\fIWORK\fP 
.PP
.nf
!>          WORK is REAL array\&. Workspace of size nb\&.
!> 
.fi
.PP
.RE
.PP
\fBFurther Details:\fP
.RS 4

.PP
.nf
!>
!>  Implemented by Azzam Haidar\&.
!>
!>  All details are available on technical report, SC11, SC13 papers\&.
!>
!>  Azzam Haidar, Hatem Ltaief, and Jack Dongarra\&.
!>  Parallel reduction to condensed forms for symmetric eigenvalue problems
!>  using aggregated fine-grained and memory-aware kernels\&. In Proceedings
!>  of 2011 International Conference for High Performance Computing,
!>  Networking, Storage and Analysis (SC '11), New York, NY, USA,
!>  Article 8 , 11 pages\&.
!>  http://doi\&.acm\&.org/10\&.1145/2063384\&.2063394
!>
!>  A\&. Haidar, J\&. Kurzak, P\&. Luszczek, 2013\&.
!>  An improved parallel singular value algorithm and its implementation
!>  for multicore hardware, In Proceedings of 2013 International Conference
!>  for High Performance Computing, Networking, Storage and Analysis (SC '13)\&.
!>  Denver, Colorado, USA, 2013\&.
!>  Article 90, 12 pages\&.
!>  http://doi\&.acm\&.org/10\&.1145/2503210\&.2503292
!>
!>  A\&. Haidar, R\&. Solca, S\&. Tomov, T\&. Schulthess and J\&. Dongarra\&.
!>  A novel hybrid CPU-GPU generalized eigensolver for electronic structure
!>  calculations based on fine-grained memory aware tasks\&.
!>  International Journal of High Performance Computing Applications\&.
!>  Volume 28 Issue 2, Pages 196-209, May 2014\&.
!>  http://hpc\&.sagepub\&.com/content/28/2/196
!>
!> 
.fi
.PP
 
.RE
.PP

.PP
Definition at line \fB170\fP of file \fBssb2st_kernels\&.f\fP\&.
.SH "Author"
.PP 
Generated automatically by Doxygen for LAPACK from the source code\&.