1c4762a1bSJed Brown 2c4762a1bSJed Brown static char help[] = "Tests timing PetscSortInt().\n\n"; 3c4762a1bSJed Brown 4c4762a1bSJed Brown #include <petscsys.h> 5c4762a1bSJed Brown 6*d71ae5a4SJacob Faibussowitsch int main(int argc, char **argv) 7*d71ae5a4SJacob Faibussowitsch { 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 PetscBool values_view = PETSC_FALSE; 15c4762a1bSJed Brown PetscMPIInt rank; 16c4762a1bSJed Brown 17327415f7SBarry Smith PetscFunctionBeginUser; 189566063dSJacob Faibussowitsch PetscCall(PetscInitialize(&argc, &argv, (char *)0, help)); 199566063dSJacob Faibussowitsch PetscCallMPI(MPI_Comm_rank(PETSC_COMM_WORLD, &rank)); 209566063dSJacob Faibussowitsch PetscCall(PetscOptionsGetInt(NULL, NULL, "-n", &n, NULL)); 219566063dSJacob Faibussowitsch PetscCall(PetscOptionsGetBool(NULL, 0, "-values_view", &values_view, NULL)); 22c4762a1bSJed Brown 239566063dSJacob Faibussowitsch PetscCall(PetscRandomCreate(PETSC_COMM_SELF, &rand)); 249566063dSJacob Faibussowitsch PetscCall(PetscRandomSetFromOptions(rand)); 25c4762a1bSJed Brown 269566063dSJacob Faibussowitsch PetscCall(PetscMalloc1(n, &values)); 27c4762a1bSJed Brown for (i = 0; i < n; i++) { 289566063dSJacob Faibussowitsch PetscCall(PetscRandomGetValueReal(rand, &value)); 29c4762a1bSJed Brown values[i] = (PetscInt)(n * value + 2.0); 30c4762a1bSJed Brown } 319566063dSJacob Faibussowitsch PetscCall(PetscSortInt(n, values)); 32c4762a1bSJed Brown 339566063dSJacob Faibussowitsch PetscCall(PetscLogEventRegister("Sort", 0, &event)); 349566063dSJacob Faibussowitsch PetscCall(PetscLogEventBegin(event, 0, 0, 0, 0)); 35c4762a1bSJed Brown 36c4762a1bSJed Brown for (i = 0; i < n; i++) { 379566063dSJacob Faibussowitsch PetscCall(PetscRandomGetValueReal(rand, &value)); 38c4762a1bSJed Brown values[i] = (PetscInt)(n * value + 2.0); 39c4762a1bSJed Brown } 409566063dSJacob Faibussowitsch PetscCall(PetscSortInt(n, values)); 419566063dSJacob Faibussowitsch PetscCall(PetscLogEventEnd(event, 0, 0, 0, 0)); 42c4762a1bSJed Brown 43c4762a1bSJed Brown for (i = 1; i < n; i++) { 4408401ef6SPierre Jolivet PetscCheck(values[i] >= values[i - 1], PETSC_COMM_SELF, PETSC_ERR_PLIB, "Values not sorted"); 459566063dSJacob Faibussowitsch if (values_view && rank == 0) PetscCall(PetscPrintf(PETSC_COMM_SELF, "%" PetscInt_FMT " %" PetscInt_FMT "\n", i, values[i])); 46c4762a1bSJed Brown } 479566063dSJacob Faibussowitsch PetscCall(PetscFree(values)); 489566063dSJacob Faibussowitsch PetscCall(PetscRandomDestroy(&rand)); 49c4762a1bSJed Brown 509566063dSJacob Faibussowitsch PetscCall(PetscFinalize()); 51b122ec5aSJacob Faibussowitsch return 0; 52c4762a1bSJed Brown } 53c4762a1bSJed Brown 54c4762a1bSJed Brown /*TEST 55c4762a1bSJed Brown 56c4762a1bSJed Brown test: 57c4762a1bSJed Brown args: -values_view 58c4762a1bSJed Brown 59c4762a1bSJed Brown TEST*/ 60