table of contents
/home/abuild/rpmbuild/BUILD/lapack-3.12.0/SRC/zhb2st_kernels.f(3) | Library Functions Manual | /home/abuild/rpmbuild/BUILD/lapack-3.12.0/SRC/zhb2st_kernels.f(3) |
NAME¶
/home/abuild/rpmbuild/BUILD/lapack-3.12.0/SRC/zhb2st_kernels.f
SYNOPSIS¶
Functions/Subroutines¶
subroutine ZHB2ST_KERNELS (uplo, wantz, ttype, st, ed,
sweep, n, nb, ib, a, lda, v, tau, ldvt, work)
ZHB2ST_KERNELS
Function/Subroutine Documentation¶
subroutine ZHB2ST_KERNELS (character uplo, logical wantz, integer ttype, integer st, integer ed, integer sweep, integer n, integer nb, integer ib, complex*16, dimension( lda, * ) a, integer lda, complex*16, dimension( * ) v, complex*16, dimension( * ) tau, integer ldvt, complex*16, dimension( * ) work)¶
ZHB2ST_KERNELS
Purpose:
!> !> ZHB2ST_KERNELS is an internal routine used by the ZHETRD_HB2ST !> subroutine. !>
Parameters
UPLO
!> UPLO is CHARACTER*1 !>
WANTZ
!> WANTZ is LOGICAL which indicate if Eigenvalue are requested or both !> Eigenvalue/Eigenvectors. !>
TTYPE
!> TTYPE is INTEGER !>
ST
!> ST is INTEGER !> internal parameter for indices. !>
ED
!> ED is INTEGER !> internal parameter for indices. !>
SWEEP
!> SWEEP is INTEGER !> internal parameter for indices. !>
N
!> N is INTEGER. The order of the matrix A. !>
NB
!> NB is INTEGER. The size of the band. !>
IB
!> IB is INTEGER. !>
A
!> A is COMPLEX*16 array. A pointer to the matrix A. !>
LDA
!> LDA is INTEGER. The leading dimension of the matrix A. !>
V
!> V is COMPLEX*16 array, dimension 2*n if eigenvalues only are !> requested or to be queried for vectors. !>
TAU
!> TAU is COMPLEX*16 array, dimension (2*n). !> The scalar factors of the Householder reflectors are stored !> in this array. !>
LDVT
!> LDVT is INTEGER. !>
WORK
!> WORK is COMPLEX*16 array. Workspace of size nb. !>
Further Details:
!> !> 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 !> !>
Definition at line 169 of file zhb2st_kernels.f.
Author¶
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