1*c4762a1bSJed Brown 2*c4762a1bSJed Brown static char help[] = "Tests timing PetscSortInt().\n\n"; 3*c4762a1bSJed Brown 4*c4762a1bSJed Brown #include <petscsys.h> 5*c4762a1bSJed Brown 6*c4762a1bSJed Brown int main(int argc,char **argv) 7*c4762a1bSJed Brown { 8*c4762a1bSJed Brown PetscInt i,n = 1000,*values; 9*c4762a1bSJed Brown int event; 10*c4762a1bSJed Brown PetscRandom rand; 11*c4762a1bSJed Brown PetscReal value; 12*c4762a1bSJed Brown PetscErrorCode ierr; 13*c4762a1bSJed Brown PetscBool values_view=PETSC_FALSE; 14*c4762a1bSJed Brown PetscMPIInt rank; 15*c4762a1bSJed Brown 16*c4762a1bSJed Brown ierr = PetscInitialize(&argc,&argv,(char*)0,help);if (ierr) return ierr; 17*c4762a1bSJed Brown ierr = MPI_Comm_rank(PETSC_COMM_WORLD,&rank);CHKERRQ(ierr); 18*c4762a1bSJed Brown ierr = PetscOptionsGetInt(NULL,NULL,"-n",&n,NULL);CHKERRQ(ierr); 19*c4762a1bSJed Brown ierr = PetscOptionsGetBool(NULL,0,"-values_view",&values_view,NULL);CHKERRQ(ierr); 20*c4762a1bSJed Brown 21*c4762a1bSJed Brown ierr = PetscRandomCreate(PETSC_COMM_SELF,&rand);CHKERRQ(ierr); 22*c4762a1bSJed Brown ierr = PetscRandomSetFromOptions(rand);CHKERRQ(ierr); 23*c4762a1bSJed Brown 24*c4762a1bSJed Brown ierr = PetscMalloc1(n,&values);CHKERRQ(ierr); 25*c4762a1bSJed Brown for (i=0; i<n; i++) { 26*c4762a1bSJed Brown ierr = PetscRandomGetValueReal(rand,&value);CHKERRQ(ierr); 27*c4762a1bSJed Brown values[i] = (PetscInt)(n*value + 2.0); 28*c4762a1bSJed Brown } 29*c4762a1bSJed Brown ierr = PetscSortInt(n,values);CHKERRQ(ierr); 30*c4762a1bSJed Brown 31*c4762a1bSJed Brown ierr = PetscLogEventRegister("Sort",0,&event);CHKERRQ(ierr); 32*c4762a1bSJed Brown ierr = PetscLogEventBegin(event,0,0,0,0);CHKERRQ(ierr); 33*c4762a1bSJed Brown 34*c4762a1bSJed Brown for (i=0; i<n; i++) { 35*c4762a1bSJed Brown ierr = PetscRandomGetValueReal(rand,&value);CHKERRQ(ierr); 36*c4762a1bSJed Brown values[i] = (PetscInt)(n*value + 2.0); 37*c4762a1bSJed Brown } 38*c4762a1bSJed Brown ierr = PetscSortInt(n,values);CHKERRQ(ierr); 39*c4762a1bSJed Brown ierr = PetscLogEventEnd(event,0,0,0,0);CHKERRQ(ierr); 40*c4762a1bSJed Brown 41*c4762a1bSJed Brown for (i=1; i<n; i++) { 42*c4762a1bSJed Brown if (values[i] < values[i-1]) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_PLIB,"Values not sorted"); 43*c4762a1bSJed Brown if (values_view && !rank) {ierr = PetscPrintf(PETSC_COMM_SELF,"%D %D\n",i,values[i]);CHKERRQ(ierr);} 44*c4762a1bSJed Brown } 45*c4762a1bSJed Brown ierr = PetscFree(values);CHKERRQ(ierr); 46*c4762a1bSJed Brown ierr = PetscRandomDestroy(&rand);CHKERRQ(ierr); 47*c4762a1bSJed Brown 48*c4762a1bSJed Brown ierr = PetscFinalize(); 49*c4762a1bSJed Brown return ierr; 50*c4762a1bSJed Brown } 51*c4762a1bSJed Brown 52*c4762a1bSJed Brown 53*c4762a1bSJed Brown 54*c4762a1bSJed Brown /*TEST 55*c4762a1bSJed Brown 56*c4762a1bSJed Brown test: 57*c4762a1bSJed Brown args: -values_view 58*c4762a1bSJed Brown 59*c4762a1bSJed Brown TEST*/ 60