1 2 static char help[] = "AO test contributed by Sebastian Steiger <steiger@purdue.edu>, March 2011\n\n"; 3 4 /* 5 Example of usage: 6 mpiexec -n 12 ./ex3 7 mpiexec -n 30 ./ex3 -ao_type basic 8 */ 9 10 #include <iostream> 11 #include <fstream> 12 #include <vector> 13 #include <petscvec.h> 14 #include <petscao.h> 15 16 using namespace std; 17 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; 25 26 PetscCall(PetscInitialize(&argc, &argv, (char*)0, help)); 27 PetscCallMPI(MPI_Comm_size(PETSC_COMM_WORLD, &size)); 28 PetscCallMPI(MPI_Comm_rank(PETSC_COMM_WORLD, &rank)); 29 30 PetscCall(PetscOptionsGetString(NULL,NULL,"-datafiles",datafiles,sizeof(datafiles),&flg)); 31 PetscCheck(flg,PETSC_COMM_WORLD,PETSC_ERR_USER,"Must specify -datafiles ${DATAFILESPATH}/ao"); 32 33 // read in application indices 34 PetscCall(PetscSNPrintf(infile,sizeof(infile),"%s/AO%dCPUs/ao_p%d_appindices.txt",datafiles,size,rank)); 35 ifstream fin(infile); 36 PetscCheck(fin,PETSC_COMM_SELF,PETSC_ERR_FILE_OPEN,"File not found: %s",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 PetscCall(PetscSynchronizedPrintf(PETSC_COMM_WORLD,"[%d] has %zu indices.\n",rank,myapp.size())); 49 PetscCall(PetscSynchronizedFlush(PETSC_COMM_WORLD,PETSC_STDOUT)); 50 51 PetscCall(ISCreateGeneral(PETSC_COMM_WORLD, myapp.size(), &(myapp[0]), PETSC_USE_POINTER, &isapp)); 52 53 PetscCall(AOCreate(PETSC_COMM_WORLD, &ao)); 54 PetscCall(AOSetIS(ao, isapp, NULL)); 55 PetscCall(AOSetType(ao, AOMEMORYSCALABLE)); 56 PetscCall(AOSetFromOptions(ao)); 57 58 if (rank==0) cout << "AO has been set up." << endl; 59 60 PetscCall(AODestroy(&ao)); 61 PetscCall(ISDestroy(&isapp)); 62 63 if (rank==0) cout << "AO is done." << endl; 64 65 PetscCall(PetscFinalize()); 66 return 0; 67 } 68 69 /*TEST 70 71 build: 72 requires: !defined(PETSC_USE_64BIT_INDICES) 73 74 test: 75 nsize: 12 76 requires: double !complex datafilespath 77 args: -datafiles ${DATAFILESPATH}/ao 78 output_file: output/ex3_1.out 79 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 86 87 test: 88 suffix: 3 89 nsize: 30 90 requires: double !complex datafilespath 91 args: -datafiles ${DATAFILESPATH}/ao 92 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 99 100 TEST*/ 101