LUSolveTime (3p)

Name

LUSolveTime - A query function that returns the time spent in the solve stage by the SuperLU solver.

Synopsis

#include <sunperf.h>


double LUSolveTime(SuperLUStat_t *stat);


double LUSolveTime_64(SuperLUStat_t_64 *stat);

Description

Oracle Solaris Studio Performance Library                      LUSolveTime(3P)



NAME
       LUSolveTime - A query function that returns the time spent in the solve
       stage by the SuperLU solver.


SYNOPSIS
       #include <sunperf.h>


       double LUSolveTime(SuperLUStat_t *stat);


       double LUSolveTime_64(SuperLUStat_t_64 *stat);


PURPOSE
       LUSolveTime returns the time spent in the solve  step  by  the  SuperLU
       solver.  This information is collected and stored in a structure object
       of type SuperLUStat_t:

       typedef struct {
           int    *panel_histo;
           double *utime;
           float  *ops;
           int    TinyPivots;
           int    RefineSteps;
       } SuperLUStat_t;

       typedef struct {
           long   *panel_histo;
           double *utime;
           float  *ops;
           long   TinyPivots;
           long   RefineSteps;
       } SuperLUStat_t_64;

       where


       panel_histo is histogram of panel size distribution

       utime is running time at various phases

       ops is operation count at various phases

       TinyPivots is number of tiny pivots

       RefineSteps is number of iterative refinement steps

LUSolveTime returns the double precision value in utime  that  represents  the
time spent in the solve step.


ARGUMENTS
       SuperLUStat_t *stat (input)
                 On entry, stat points to a SuperLUStat_t structure.


SEE ALSO
       StatInit

       StatFree

       LUFactTime

       LUFactFlops

       LUSolveFlops

       SuperMatrix

       http://crd.lbl.gov/~xiaoye/SuperLU/

       James  W.  Demmel,  Stanley C. Eisenstat, John R. Gilbert, Xiaoye S. Li
       and Joseph W. H. Liu, "A supernodal approach to sparse  partial  pivot-
       ing",  SIAM J. Matrix Analysis and Applications, Vol. 20, Num. 3, 1999,
       pp. 720-755.



                                  7 Nov 2015                   LUSolveTime(3P)