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//------------------------------------------------------------------------------
// GraphBLAS/Demo/Program/wathen_demo.c: test wathen
//------------------------------------------------------------------------------
// SuiteSparse:GraphBLAS, Timothy A. Davis, (c) 2017-2022, All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0
//------------------------------------------------------------------------------
// Construct a matrix using the Demo/Source/wathen.c method.
//
// wathen_demo nx ny method nthreads
// macro used by OK(...) to free workspace if an error occurs
#define FREE_ALL \
GrB_Matrix_free (&A) ; \
#include "graphblas_demos.h"
#ifdef _OPENMP
#include "omp.h"
#endif
int main (int argc, char **argv)
{
GrB_Matrix A = NULL ;
GrB_Info info ;
OK (GrB_init (GrB_NONBLOCKING)) ;
//--------------------------------------------------------------------------
// get inputs
//--------------------------------------------------------------------------
int64_t nx = 10, ny = 10 ;
int method = 0 ;
int nthreads ;
if (argc > 1) nx = strtol (argv [1], NULL, 0) ;
if (argc > 2) ny = strtol (argv [2], NULL, 0) ;
if (argc > 3) method = strtol (argv [3], NULL, 0) ;
if (argc > 4)
{
nthreads = strtol (argv [4], NULL, 0) ;
OK (GxB_Global_Option_set (GxB_GLOBAL_NTHREADS, nthreads)) ;
}
OK (GxB_Global_Option_get (GxB_GLOBAL_NTHREADS, &nthreads)) ;
fprintf (stderr, "Wathen: nx %d ny %d method: %d nthreads: %d ",
(int) nx, (int) ny, method, nthreads) ;
//--------------------------------------------------------------------------
// create a Wathen matrix
//--------------------------------------------------------------------------
#ifdef _OPENMP
double t = omp_get_wtime ( ) ;
#endif
OK (wathen (&A, nx, ny, false, method, NULL)) ;
#ifdef _OPENMP
t = omp_get_wtime ( ) - t ;
fprintf (stderr, "time: %g", t) ;
#endif
fprintf (stderr, "\n") ;
OK (GxB_print (A, GxB_SUMMARY)) ;
FREE_ALL ;
OK (GrB_finalize ( )) ;
}
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