1c4762a1bSJed Brown 2c4762a1bSJed Brown static char help[] = "Tests timing PetscSortInt().\n\n"; 3c4762a1bSJed Brown 4c4762a1bSJed Brown #include <petscsys.h> 5c4762a1bSJed Brown 6c4762a1bSJed Brown int main(int argc,char **argv) 7c4762a1bSJed Brown { 8c4762a1bSJed Brown PetscInt i,n = 1000,*values; 9956f8c0dSBarry Smith #if defined(PETSC_USE_LOG) 10956f8c0dSBarry Smith PetscLogEvent event; 11956f8c0dSBarry Smith #endif 12c4762a1bSJed Brown PetscRandom rand; 13c4762a1bSJed Brown PetscReal value; 14c4762a1bSJed Brown PetscErrorCode ierr; 15c4762a1bSJed Brown PetscBool values_view=PETSC_FALSE; 16c4762a1bSJed Brown PetscMPIInt rank; 17c4762a1bSJed Brown 18c4762a1bSJed Brown ierr = PetscInitialize(&argc,&argv,(char*)0,help);if (ierr) return ierr; 19*5f80ce2aSJacob Faibussowitsch CHKERRMPI(MPI_Comm_rank(PETSC_COMM_WORLD,&rank)); 20*5f80ce2aSJacob Faibussowitsch CHKERRQ(PetscOptionsGetInt(NULL,NULL,"-n",&n,NULL)); 21*5f80ce2aSJacob Faibussowitsch CHKERRQ(PetscOptionsGetBool(NULL,0,"-values_view",&values_view,NULL)); 22c4762a1bSJed Brown 23*5f80ce2aSJacob Faibussowitsch CHKERRQ(PetscRandomCreate(PETSC_COMM_SELF,&rand)); 24*5f80ce2aSJacob Faibussowitsch CHKERRQ(PetscRandomSetFromOptions(rand)); 25c4762a1bSJed Brown 26*5f80ce2aSJacob Faibussowitsch CHKERRQ(PetscMalloc1(n,&values)); 27c4762a1bSJed Brown for (i=0; i<n; i++) { 28*5f80ce2aSJacob Faibussowitsch CHKERRQ(PetscRandomGetValueReal(rand,&value)); 29c4762a1bSJed Brown values[i] = (PetscInt)(n*value + 2.0); 30c4762a1bSJed Brown } 31*5f80ce2aSJacob Faibussowitsch CHKERRQ(PetscSortInt(n,values)); 32c4762a1bSJed Brown 33*5f80ce2aSJacob Faibussowitsch CHKERRQ(PetscLogEventRegister("Sort",0,&event)); 34*5f80ce2aSJacob Faibussowitsch CHKERRQ(PetscLogEventBegin(event,0,0,0,0)); 35c4762a1bSJed Brown 36c4762a1bSJed Brown for (i=0; i<n; i++) { 37*5f80ce2aSJacob Faibussowitsch CHKERRQ(PetscRandomGetValueReal(rand,&value)); 38c4762a1bSJed Brown values[i] = (PetscInt)(n*value + 2.0); 39c4762a1bSJed Brown } 40*5f80ce2aSJacob Faibussowitsch CHKERRQ(PetscSortInt(n,values)); 41*5f80ce2aSJacob Faibussowitsch CHKERRQ(PetscLogEventEnd(event,0,0,0,0)); 42c4762a1bSJed Brown 43c4762a1bSJed Brown for (i=1; i<n; i++) { 442c71b3e2SJacob Faibussowitsch PetscCheckFalse(values[i] < values[i-1],PETSC_COMM_SELF,PETSC_ERR_PLIB,"Values not sorted"); 45*5f80ce2aSJacob Faibussowitsch if (values_view && rank == 0) CHKERRQ(PetscPrintf(PETSC_COMM_SELF,"%" PetscInt_FMT " %" PetscInt_FMT "\n",i,values[i])); 46c4762a1bSJed Brown } 47*5f80ce2aSJacob Faibussowitsch CHKERRQ(PetscFree(values)); 48*5f80ce2aSJacob Faibussowitsch CHKERRQ(PetscRandomDestroy(&rand)); 49c4762a1bSJed Brown 50c4762a1bSJed Brown ierr = PetscFinalize(); 51c4762a1bSJed Brown return ierr; 52c4762a1bSJed Brown } 53c4762a1bSJed Brown 54c4762a1bSJed Brown /*TEST 55c4762a1bSJed Brown 56c4762a1bSJed Brown test: 57c4762a1bSJed Brown args: -values_view 58c4762a1bSJed Brown 59c4762a1bSJed Brown TEST*/ 60