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 ierr = PetscSynchronizedPrintf(PETSC_COMM_WORLD,"[%d] has %D indices.\n",rank,myapp.size());CHKERRQ(ierr); 47 ierr = PetscSynchronizedFlush(PETSC_COMM_WORLD,PETSC_STDOUT);CHKERRQ(ierr); 48 49 ierr = ISCreateGeneral(PETSC_COMM_WORLD, myapp.size(), &(myapp[0]), PETSC_USE_POINTER, &isapp);CHKERRQ(ierr); 50 51 ierr = AOCreate(PETSC_COMM_WORLD, &ao);CHKERRQ(ierr); 52 ierr = AOSetIS(ao, isapp, NULL);CHKERRQ(ierr); 53 ierr = AOSetType(ao, AOMEMORYSCALABLE);CHKERRQ(ierr); 54 ierr = AOSetFromOptions(ao);CHKERRQ(ierr); 55 56 if (rank==0) cout << "AO has been set up." << endl; 57 58 ierr = AODestroy(&ao);CHKERRQ(ierr); 59 ierr = ISDestroy(&isapp);CHKERRQ(ierr); 60 61 if (rank==0) cout << "AO is done." << endl; 62 63 ierr = PetscFinalize(); 64 return ierr; 65 } 66 67 /*TEST 68 69 build: 70 requires: !defined(PETSC_USE_64BIT_INDICES) 71 72 test: 73 nsize: 12 74 requires: double !complex datafilespath 75 args: -datafiles ${DATAFILESPATH}/ao 76 output_file: output/ex3_1.out 77 78 test: 79 suffix: 2 80 nsize: 12 81 requires: double !complex datafilespath 82 args: -ao_type basic -datafiles ${DATAFILESPATH}/ao 83 output_file: output/ex3_1.out 84 85 test: 86 suffix: 3 87 nsize: 30 88 requires: double !complex datafilespath 89 args: -datafiles ${DATAFILESPATH}/ao 90 91 test: 92 suffix: 4 93 nsize: 30 94 requires: double !complex datafilespath 95 args: -ao_type basic -datafiles ${DATAFILESPATH}/ao 96 output_file: output/ex3_3.out 97 98 TEST*/ 99