Name
HPL_dlocmax finds the maximum entry in matrix column.
Synopsis
#include "hpl.h"
void
HPL_dlocmax(
HPL_T_panel *
PANEL,
const int
N,
const int
II,
const int
JJ,
double *
WORK
);
Description
HPL_dlocmax
finds  the maximum entry in the current column  and packs
the useful information in  WORK[0:3].  On exit,  WORK[0] contains the
local maximum  absolute value  scalar,  WORK[1] is the  corresponding
local row index,  WORK[2]  is the corresponding global row index, and
WORK[3] is the coordinate of the process owning this max.  When N  is
less than 1, the WORK[0:2] is initialized to zero, and WORK[3] is set
to the total number of process rows.
Arguments
PANEL   (local input/output)          HPL_T_panel *
        On entry,  PANEL  points to the data structure containing the
        panel information.
N       (local input)                 const int
        On entry,  N specifies the local number of rows of the column
        of A on which we operate.
II      (local input)                 const int
        On entry, II  specifies the row offset where the column to be
        operated on starts with respect to the panel.
JJ      (local input)                 const int
        On entry, JJ  specifies the column offset where the column to
        be operated on starts with respect to the panel.
WORK    (local workspace)             double *
        On entry, WORK  is  a workarray of size at least 4.  On exit,
        WORK[0] contains  the  local  maximum  absolute value scalar,
        WORK[1] contains  the corresponding local row index,  WORK[2]
        contains the corresponding global row index, and  WORK[3]  is
        the coordinate of process owning this max.
See Also
HPL_dlocswpN,
HPL_dlocswpT,
HPL_pdmxswp,
HPL_pdpancrN,
HPL_pdpancrT,
HPL_pdpanllN,
HPL_pdpanllT,
HPL_pdpanrlN,
HPL_pdpanrlT,
HPL_pdrpancrN,
HPL_pdrpancrT,
HPL_pdrpanllN,
HPL_pdrpanllT,
HPL_pdrpanrlN,
HPL_pdrpanrlT,
HPL_pdfact.