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use_workspace (3)
  • >> use_workspace (3) ( Solaris man: Библиотечные вызовы )
  • 
    NAME
         use_workspace - Provide a block of  memory  to  be  used  in
         LAPACK routines that have a real or complex workspace param-
         eter that can vary in length and are called  through  the  C
         interfaces.
    
    SYNOPSIS
         #include <sunperf.h>
    
         int use_workspace(char *ws, int length) ;
    
    PURPOSE
         Many LAPACK routines require workspace parameters to provide
                   temporary  storage for intermediate results.  Some
                   routines allow varying amounts of workspace to  be
                   passed  in.   A  choice  is  made between multiple
                   algorithms, using the most efficient method  which
                   can  operate  given  the amount of workspace.  The
                   following  lapack  routines  all  support  varying
                   amounts of real or complex
                    workspace:
    
                   cgebrd    cgees     cgeesx    cgeev     cgeevx
                   cgegs     cgegv     cgehrd    cgelqf    cgels
                   cgelss    cgeqlf    cgeqrf    cgerqf    cgesvd
                   cgetri    cggglm    cgglse    cggqrf    cggrqf
                   chbevd    cheev     cheevd    cheevx    chegv
                   chesv     chesvx    chetrd    chetrf    chgeqz
                   chpevd    chseqr    clarfb    cstedc    csysv
                   csysvx    csytrf    ctrsen    ctrsna    cungbr
                   cunghr    cunglq    cungql    cungqr    cungrq
                   cungtr    cunmbr    cunmhr    cunmlq    cunmql
                   cunmqr    cunmrq    cunmtr    dgebrd    dgees
                   dgeesx    dgeev     dgeevx    dgegs     dgegv
                   dgehrd    dgelqf    dgels     dgelss    dgeqlf
                   dgeqrf    dgerqf    dgesvd    dgetri    dggglm
                   dgglse    dggqrf    dggrqf    dhgeqz    dhseqr
                   dlarfb    dorgbr    dorghr    dorglq    dorgql
                   dorgqr    dorgrq    dorgtr    dormbr    dormhr
                   dormlq    dormql    dormqr    dormrq    dormtr
                   dsbevd    dspevd    dstedc    dstevd    dsyev
                   dsyevd    dsyevx    dsygv     dsysv     dsysvx
                   dsytrd    dsytrf    dtrsen    dtrsna    sgebrd
                   sgees     sgeesx    sgeev     sgeevx    sgegs
                   sgegv     sgehrd    sgelqf    sgels     sgelss
                   sgeqlf    sgeqrf    sgerqf    sgesvd    sgetri
                   sggglm    sgglse    sggqrf    sggrqf    shgeqz
                   shseqr    slarfb    sorgbr    sorghr    sorglq
                   sorgql    sorgqr    sorgrq    sorgtr    sormbr
                   sormhr    sormlq    sormql    sormqr    sormrq
                   sormtr    ssbevd    sspevd    sstedc    sstevd
                   ssyev     ssyevd    ssyevx    ssygv     ssysv
                   ssysvx    ssytrd    ssytrf    strsen    strsna
                   zgebrd    zgees     zgeesx    zgeev     zgeevx
                   zgegs     zgegv     zgehrd    zgelqf    zgels
                   zgelss    zgeqlf    zgeqrf    zgerqf    zgesvd
                   zgetri    zggglm    zgglse    zggqrf    zggrqf
                   zhbevd    zheev     zheevd    zheevx    zhegv
                   zhesv     zhesvx    zhetrd    zhetrf    zhgeqz
                   zhpevd    zhseqr    zlarfb    zstedc    zsysv
                   zsysvx    zsytrf    ztrsen    ztrsna    zungbr
                   zunghr    zunglq    zungql    zungqr    zungrq
                   zungtr    zunmbr    zunmhr    zunmlq    zunmql
                   zunmqr    zunmrq    zunmtr
    
                   The C LAPACK interfaces do not require the user to
                   provide workspace.  Tempory storage is dynamically
                   allocated as needed.  By default, the C interfaces
                   use   the  minimum  amount  of  storage  required.
                   Therefore, the computation for the routines listed
                   above  will  use  the  algorithm that requires the
                   least amount of workspace.  In  most  cases  these
                   algorithms  require  more time.  A larger block of
                   memory can  be  supplied  with  the  use_workspace
                   function,  allowing more time-efficient algorithms
                   to be selected.
    
    ARGUMENTS
         workspace A pointer to the block of memory  to  be  used  as
                   workspace.
    
         length    The length of the workspace array in bytes.
    
    
    
    


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