Actual source code: ex3.cxx
2: static char help[] = "AO test contributed by Sebastian Steiger <steiger@purdue.edu>, March 2011\n\n";
4: /*
5: Example of usage:
6: mpiexec -n 12 ./ex3
7: mpiexec -n 30 ./ex3 -ao_type basic
8: */
10: #include <iostream>
11: #include <fstream>
12: #include <vector>
13: #include <petscvec.h>
14: #include <petscao.h>
16: using namespace std;
18: int main(int argc, char** argv)
19: {
20: AO ao;
21: IS isapp;
22: char infile[PETSC_MAX_PATH_LEN],datafiles[PETSC_MAX_PATH_LEN];
23: PetscBool flg;
24: PetscMPIInt size,rank;
26: PetscInitialize(&argc, &argv, (char*)0, help);
27: MPI_Comm_size(PETSC_COMM_WORLD, &size);
28: MPI_Comm_rank(PETSC_COMM_WORLD, &rank);
30: PetscOptionsGetString(NULL,NULL,"-datafiles",datafiles,sizeof(datafiles),&flg);
33: // read in application indices
34: PetscSNPrintf(infile,sizeof(infile),"%s/AO%dCPUs/ao_p%d_appindices.txt",datafiles,size,rank);
35: ifstream fin(infile);
37: vector<PetscInt> myapp;
38: int tmp=-1;
39: while (!fin.eof()) {
40: tmp=-1;
41: fin >> tmp;
42: if (tmp==-1) break;
43: myapp.push_back(tmp);
44: }
45: #if __cplusplus >= 201103L // c++11
46: static_assert(is_same<decltype(myapp.size()),size_t>::value,"");
47: #endif
48: PetscSynchronizedPrintf(PETSC_COMM_WORLD,"[%d] has %zu indices.\n",rank,myapp.size());
49: PetscSynchronizedFlush(PETSC_COMM_WORLD,PETSC_STDOUT);
51: ISCreateGeneral(PETSC_COMM_WORLD, myapp.size(), &(myapp[0]), PETSC_USE_POINTER, &isapp);
53: AOCreate(PETSC_COMM_WORLD, &ao);
54: AOSetIS(ao, isapp, NULL);
55: AOSetType(ao, AOMEMORYSCALABLE);
56: AOSetFromOptions(ao);
58: if (rank==0) cout << "AO has been set up." << endl;
60: AODestroy(&ao);
61: ISDestroy(&isapp);
63: if (rank==0) cout << "AO is done." << endl;
65: PetscFinalize();
66: return 0;
67: }
69: /*TEST
71: build:
72: requires: !defined(PETSC_USE_64BIT_INDICES)
74: test:
75: nsize: 12
76: requires: double !complex datafilespath
77: args: -datafiles ${DATAFILESPATH}/ao
78: output_file: output/ex3_1.out
80: test:
81: suffix: 2
82: nsize: 12
83: requires: double !complex datafilespath
84: args: -ao_type basic -datafiles ${DATAFILESPATH}/ao
85: output_file: output/ex3_1.out
87: test:
88: suffix: 3
89: nsize: 30
90: requires: double !complex datafilespath
91: args: -datafiles ${DATAFILESPATH}/ao
93: test:
94: suffix: 4
95: nsize: 30
96: requires: double !complex datafilespath
97: args: -ao_type basic -datafiles ${DATAFILESPATH}/ao
98: output_file: output/ex3_3.out
100: TEST*/