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//------------------------------------------------------------------------------
// LAGraph/experimental/benchmark/fglt_demo.c: benchmark Fast Graphlet Transform
//------------------------------------------------------------------------------
// LAGraph, (c) 2019-2022 by The LAGraph Contributors, All Rights Reserved.
// SPDX-License-Identifier: BSD-2-Clause
//
// For additional details (including references to third party source code and
// other files) see the LICENSE file or contact permission@sei.cmu.edu. See
// Contributors.txt for a full list of contributors. Created, in part, with
// funding and support from the U.S. Government (see Acknowledgments.txt file).
// DM22-0790
// Contributed by Tanner Hoke
//------------------------------------------------------------------------------
#include "../../src/benchmark/LAGraph_demo.h"
#include "LAGraphX.h"
#include "LG_Xtest.h"
#define NTHREAD_LIST 1
// #define NTHREAD_LIST 2
#define THREAD_LIST 0
// #define NTHREAD_LIST 6
// #define THREAD_LIST 64, 32, 24, 12, 8, 4
#define LG_FREE_ALL \
{ \
GrB_free (&A) ; \
GrB_free (&Fnet) ; \
LAGraph_Delete (&G, msg) ; \
if (f != NULL) fclose (f) ; \
}
int main (int argc, char **argv)
{
char msg [LAGRAPH_MSG_LEN] ;
LAGraph_Graph G = NULL ;
GrB_Matrix A = NULL ;
GrB_Matrix Fnet = NULL ;
GrB_Matrix Abool = NULL ;
FILE *f = NULL ;
// start GraphBLAS and LAGraph
bool burble = false ;
demo_init (burble) ;
int nt = NTHREAD_LIST ;
int Nthreads [20] = { 0, THREAD_LIST } ;
int nthreads_max, nthreads_outer, nthreads_inner ;
LAGRAPH_TRY (LAGraph_GetNumThreads (&nthreads_outer, &nthreads_inner, NULL)) ;
nthreads_max = nthreads_outer * nthreads_inner ;
if (Nthreads [1] == 0)
{
// create thread list automatically
Nthreads [1] = nthreads_max ;
for (int t = 2 ; t <= nt ; t++)
{
Nthreads [t] = Nthreads [t-1] / 2 ;
if (Nthreads [t] == 0) nt = t-1 ;
}
}
printf ("threads to test: ") ;
for (int t = 1 ; t <= nt ; t++)
{
int nthreads = Nthreads [t] ;
if (nthreads > nthreads_max) continue ;
printf (" %d", nthreads) ;
}
printf ("\n") ;
//--------------------------------------------------------------------------
// read in the graph
//--------------------------------------------------------------------------
char *matrix_name = (argc > 1) ? argv [1] : "stdin" ;
LAGRAPH_TRY (readproblem (&G, NULL,
true, true, true, NULL, false, argc, argv)) ;
GrB_Index n, nvals ;
GRB_TRY (GrB_Matrix_nrows (&n, G->A)) ;
GRB_TRY (GrB_Matrix_nvals (&nvals, G->A)) ;
LAGRAPH_TRY (LAGraph_Cached_OutDegree (G, msg)) ;
//--------------------------------------------------------------------------
// compute the GAP pagerank
//--------------------------------------------------------------------------
// warmup for more accurate timing
double tt = LAGraph_WallClockTime ( ) ;
LAGRAPH_TRY (LAGraph_FastGraphletTransform (&Fnet, G, true, msg)) ;
tt = LAGraph_WallClockTime ( ) - tt ;
GRB_TRY (GrB_free (&Fnet)) ;
printf ("warmup time %g sec\n", tt) ;
// the GAP benchmark requires 16 trials
int ntrials = 16 ;
ntrials = 1 ; // HACK to run just one trial
printf ("# of trials: %d\n", ntrials) ;
for (int kk = 1 ; kk <= nt ; kk++)
{
int nthreads = Nthreads [kk] ;
if (nthreads > nthreads_max) continue ;
LAGRAPH_TRY (LAGraph_SetNumThreads (1, nthreads, msg)) ;
printf ("\n--------------------------- nthreads: %2d\n", nthreads) ;
double total_time = 0 ;
for (int trial = 0 ; trial < ntrials ; trial++)
{
int64_t seed = trial * n + 1 ;
double tt = LAGraph_WallClockTime ( ) ;
LAGRAPH_TRY (LAGraph_FastGraphletTransform (&Fnet, G, true, msg)) ;
tt = LAGraph_WallClockTime ( ) - tt ;
GRB_TRY (GrB_free (&Fnet)) ;
printf ("trial: %2d time: %10.4f sec\n", trial, tt) ;
total_time += tt ;
}
double t = total_time / ntrials ;
printf ("FGLT: %3d: avg time: %10.3f (sec) matrix: %s\n",
nthreads, t, matrix_name) ;
fprintf (stderr, "FGLT: %3d: avg time: %10.3f (sec) matrix: %s\n",
nthreads, t, matrix_name) ;
}
//--------------------------------------------------------------------------
// free all workspace and finish
//--------------------------------------------------------------------------
LG_FREE_ALL ;
LAGRAPH_TRY (LAGraph_Finalize (msg)) ;
return (GrB_SUCCESS) ;
}
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