1 static char help[] = "Test scalability of PetscHSetIJ hash set.\n\n"; 2 3 #include <petscsys.h> 4 #include <petsctime.h> 5 #include <petsc/private/hashsetij.h> 6 7 int main(int argc, char **argv) 8 { 9 PetscHSetIJ table; 10 PetscInt N = 0, i, j, n; 11 PetscHashIJKey key; 12 PetscBool flag; 13 PetscLogDouble t_add = 0; 14 PetscLogDouble t_has = 0; 15 PetscLogDouble t_del = 0; 16 17 PetscFunctionBeginUser; 18 PetscCall(PetscInitialize(&argc, &argv, NULL, help)); 19 PetscCall(PetscOptionsGetInt(NULL, NULL, "-N", &N, NULL)); 20 PetscCall(PetscHSetIJCreate(&table)); 21 22 /* The following line silences warnings from Clang Static Analyzer */ 23 PetscCall(PetscHSetIJResize(table, 0)); 24 25 PetscCall(PetscTimeSubtract(&t_add)); 26 for (i = 0; i < N; ++i) { 27 for (j = 0; j < N; ++j) { 28 key.i = PetscMin(i, j); 29 key.j = PetscMax(i, j); 30 PetscCall(PetscHSetIJQueryAdd(table, key, &flag)); 31 } 32 } 33 PetscCall(PetscTimeAdd(&t_add)); 34 35 PetscCall(PetscHSetIJGetSize(table, &n)); 36 37 PetscCall(PetscTimeSubtract(&t_has)); 38 for (i = 0; i < N; ++i) { 39 for (j = 0; j < N; ++j) { 40 key.i = i; 41 key.j = j; 42 PetscCall(PetscHSetIJHas(table, key, &flag)); 43 } 44 } 45 PetscCall(PetscTimeAdd(&t_has)); 46 47 PetscCall(PetscTimeSubtract(&t_del)); 48 for (i = 0; i < N; ++i) { 49 for (j = 0; j < N; ++j) { 50 key.i = i; 51 key.j = j; 52 PetscCall(PetscHSetIJQueryDel(table, key, &flag)); 53 } 54 } 55 PetscCall(PetscTimeAdd(&t_del)); 56 57 PetscCall(PetscPrintf(PETSC_COMM_WORLD, "N = %" PetscInt_FMT " - table size: %" PetscInt_FMT ", add: %g, has: %g, del: %g\n", N, n, t_add, t_has, t_del)); 58 59 PetscCall(PetscHSetIJDestroy(&table)); 60 PetscCall(PetscFinalize()); 61 return 0; 62 } 63 64 /*TEST 65 66 test: 67 args: -N 32 68 69 TEST*/ 70