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 PetscHSetIJ table; 9 PetscInt N = 0, i, j, n; 10 PetscHashIJKey key; 11 PetscBool flag; 12 PetscLogDouble t_add = 0; 13 PetscLogDouble t_has = 0; 14 PetscLogDouble t_del = 0; 15 16 PetscFunctionBeginUser; 17 PetscCall(PetscInitialize(&argc, &argv, NULL, help)); 18 PetscCall(PetscOptionsGetInt(NULL, NULL, "-N", &N, NULL)); 19 PetscCall(PetscHSetIJCreate(&table)); 20 21 /* The following line silences warnings from Clang Static Analyzer */ 22 PetscCall(PetscHSetIJResize(table, 0)); 23 24 PetscCall(PetscTimeSubtract(&t_add)); 25 for (i = 0; i < N; ++i) { 26 for (j = 0; j < N; ++j) { 27 key.i = PetscMin(i, j); 28 key.j = PetscMax(i, j); 29 PetscCall(PetscHSetIJQueryAdd(table, key, &flag)); 30 } 31 } 32 PetscCall(PetscTimeAdd(&t_add)); 33 34 PetscCall(PetscHSetIJGetSize(table, &n)); 35 36 PetscCall(PetscTimeSubtract(&t_has)); 37 for (i = 0; i < N; ++i) { 38 for (j = 0; j < N; ++j) { 39 key.i = i; 40 key.j = j; 41 PetscCall(PetscHSetIJHas(table, key, &flag)); 42 } 43 } 44 PetscCall(PetscTimeAdd(&t_has)); 45 46 PetscCall(PetscTimeSubtract(&t_del)); 47 for (i = 0; i < N; ++i) { 48 for (j = 0; j < N; ++j) { 49 key.i = i; 50 key.j = j; 51 PetscCall(PetscHSetIJQueryDel(table, key, &flag)); 52 } 53 } 54 PetscCall(PetscTimeAdd(&t_del)); 55 56 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)); 57 58 PetscCall(PetscHSetIJDestroy(&table)); 59 PetscCall(PetscFinalize()); 60 return 0; 61 } 62 63 /*TEST 64 65 test: 66 args: -N 32 67 68 TEST*/ 69