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 PetscErrorCode ierr; 21 AO ao; 22 IS isapp; 23 char infile[PETSC_MAX_PATH_LEN],datafiles[PETSC_MAX_PATH_LEN]; 24 PetscBool flg; 25 PetscMPIInt size,rank; 26 27 ierr = PetscInitialize(&argc, &argv, (char*)0, help);if (ierr) return ierr; 28 ierr = MPI_Comm_size(PETSC_COMM_WORLD, &size);CHKERRMPI(ierr); 29 ierr = MPI_Comm_rank(PETSC_COMM_WORLD, &rank);CHKERRMPI(ierr); 30 31 ierr = PetscOptionsGetString(NULL,NULL,"-datafiles",datafiles,sizeof(datafiles),&flg);CHKERRQ(ierr); 32 if (!flg) SETERRQ(PETSC_COMM_WORLD,PETSC_ERR_USER,"Must specify -datafiles ${DATAFILESPATH}/ao"); 33 34 // read in application indices 35 ierr = PetscSNPrintf(infile,sizeof(infile),"%s/AO%dCPUs/ao_p%d_appindices.txt",datafiles,size,rank);CHKERRQ(ierr); 36 ifstream fin(infile); 37 if (!fin) SETERRQ1(PETSC_COMM_SELF,PETSC_ERR_FILE_OPEN,"File not found: %s",infile); 38 vector<PetscInt> myapp; 39 int tmp=-1; 40 while (!fin.eof()) { 41 tmp=-1; 42 fin >> tmp; 43 if (tmp==-1) break; 44 myapp.push_back(tmp); 45 } 46 #if __cplusplus >= 201103L // c++11 47 static_assert(is_same<decltype(myapp.size()),size_t>::value,""); 48 #endif 49 ierr = PetscSynchronizedPrintf(PETSC_COMM_WORLD,"[%d] has %zu indices.\n",rank,myapp.size());CHKERRQ(ierr); 50 ierr = PetscSynchronizedFlush(PETSC_COMM_WORLD,PETSC_STDOUT);CHKERRQ(ierr); 51 52 ierr = ISCreateGeneral(PETSC_COMM_WORLD, myapp.size(), &(myapp[0]), PETSC_USE_POINTER, &isapp);CHKERRQ(ierr); 53 54 ierr = AOCreate(PETSC_COMM_WORLD, &ao);CHKERRQ(ierr); 55 ierr = AOSetIS(ao, isapp, NULL);CHKERRQ(ierr); 56 ierr = AOSetType(ao, AOMEMORYSCALABLE);CHKERRQ(ierr); 57 ierr = AOSetFromOptions(ao);CHKERRQ(ierr); 58 59 if (rank==0) cout << "AO has been set up." << endl; 60 61 ierr = AODestroy(&ao);CHKERRQ(ierr); 62 ierr = ISDestroy(&isapp);CHKERRQ(ierr); 63 64 if (rank==0) cout << "AO is done." << endl; 65 66 ierr = PetscFinalize(); 67 return ierr; 68 } 69 70 /*TEST 71 72 build: 73 requires: !defined(PETSC_USE_64BIT_INDICES) 74 75 test: 76 nsize: 12 77 requires: double !complex datafilespath 78 args: -datafiles ${DATAFILESPATH}/ao 79 output_file: output/ex3_1.out 80 81 test: 82 suffix: 2 83 nsize: 12 84 requires: double !complex datafilespath 85 args: -ao_type basic -datafiles ${DATAFILESPATH}/ao 86 output_file: output/ex3_1.out 87 88 test: 89 suffix: 3 90 nsize: 30 91 requires: double !complex datafilespath 92 args: -datafiles ${DATAFILESPATH}/ao 93 94 test: 95 suffix: 4 96 nsize: 30 97 requires: double !complex datafilespath 98 args: -ao_type basic -datafiles ${DATAFILESPATH}/ao 99 output_file: output/ex3_3.out 100 101 TEST*/ 102