xref: /petsc/src/benchmarks/PetscVecNorm.c (revision a438ae71ce233232332f459688a2b879b9a8b176)
14fcfa849SBarry Smith 
2c6db04a5SJed Brown #include <petscvec.h>
38563dfccSBarry Smith #include <petsctime.h>
44fcfa849SBarry Smith 
54a2ae208SSatish Balay #undef __FUNCT__
64a2ae208SSatish Balay #define __FUNCT__ "main"
74fcfa849SBarry Smith int main(int argc,char **argv)
84fcfa849SBarry Smith {
9832676f5SBarry Smith   Vec            x;
105fb5fb77SSatish Balay   PetscReal      norm;
11b0a32e0cSBarry Smith   PetscLogDouble t1,t2;
12*a438ae71SBarry Smith   PetscErrorCode ierr;
13*a438ae71SBarry Smith   PetscInt       n = 10000;
144fcfa849SBarry Smith 
15*a438ae71SBarry Smith   ierr = PetscInitialize(&argc,&argv,0,0);if (ierr) return ierr;
16c5929fdfSBarry Smith   ierr = PetscOptionsGetInt(NULL,NULL,"-n",&n,NULL);CHKERRQ(ierr);
174fcfa849SBarry Smith 
185d25a148Spetsc   ierr = VecCreate(PETSC_COMM_SELF,&x);CHKERRQ(ierr);
195d25a148Spetsc   ierr = VecSetSizes(x,n,n);CHKERRQ(ierr);
205d25a148Spetsc   ierr = VecSetFromOptions(x);CHKERRQ(ierr);
21832676f5SBarry Smith 
22204a6943SJed Brown   PetscPreLoadBegin(PETSC_TRUE,"VecNorm");
238563dfccSBarry Smith   ierr = PetscTime(&t1);CHKERRQ(ierr);
24ac355199SBarry Smith   ierr = VecNorm(x,NORM_2,&norm);CHKERRQ(ierr);
25ac355199SBarry Smith   ierr = VecNorm(x,NORM_2,&norm);CHKERRQ(ierr);
26ac355199SBarry Smith   ierr = VecNorm(x,NORM_2,&norm);CHKERRQ(ierr);
27ac355199SBarry Smith   ierr = VecNorm(x,NORM_2,&norm);CHKERRQ(ierr);
28ac355199SBarry Smith   ierr = VecNorm(x,NORM_2,&norm);CHKERRQ(ierr);
29ac355199SBarry Smith   ierr = VecNorm(x,NORM_2,&norm);CHKERRQ(ierr);
30ac355199SBarry Smith   ierr = VecNorm(x,NORM_2,&norm);CHKERRQ(ierr);
31ac355199SBarry Smith   ierr = VecNorm(x,NORM_2,&norm);CHKERRQ(ierr);
32ac355199SBarry Smith   ierr = VecNorm(x,NORM_2,&norm);CHKERRQ(ierr);
33ac355199SBarry Smith   ierr = VecNorm(x,NORM_2,&norm);CHKERRQ(ierr);
34204a6943SJed Brown   PetscPreLoadEnd();
358563dfccSBarry Smith   ierr = PetscTime(&t2);CHKERRQ(ierr);
365fb5fb77SSatish Balay   fprintf(stdout,"%s : \n","VecNorm");
37b4d8b9abSSatish Balay   fprintf(stdout," Time %g\n",t2-t1);
38f3fe499bSBarry Smith   ierr = PetscFinalize();
3926f47effSBarry Smith   return ierr;
404fcfa849SBarry Smith }
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