1c4762a1bSJed Brown! Tests calling PetscOptionsSetValue() before PetscInitialize(): Fortran Example 2c4762a1bSJed Brown 3c4762a1bSJed Brownprogram main 4c4762a1bSJed Brown#include <petsc/finclude/petscsys.h> 58c8af28eSPedro Ricardo C. Souza use petscmpi ! or mpi or mpi_f08 6c4762a1bSJed Brown use petscsys 7c4762a1bSJed Brown 8c4762a1bSJed Brown implicit none 9c4762a1bSJed Brown PetscErrorCode :: ierr 10*f8402805SBarry Smith PetscMPIInt :: rank,size 11c4762a1bSJed Brown character(len=80) :: outputString 12c4762a1bSJed Brown 13c4762a1bSJed Brown ! Every PETSc routine should begin with the PetscInitialize() routine. 14c4762a1bSJed Brown 15*f8402805SBarry Smith PetscCallA(PetscOptionsSetValue(PETSC_NULL_OPTIONS,"-no_signal_handler","true",ierr)) 16*f8402805SBarry Smith PetscCallA(PetscInitialize(ierr)) 17c4762a1bSJed Brown 18c4762a1bSJed Brown ! Since when PetscInitialize() returns with an error the PETSc data structures 19c4762a1bSJed Brown ! may not be set up hence we cannot call CHKERRA() hence directly return the error code. 20c4762a1bSJed Brown 21c4762a1bSJed Brown ! Since PetscOptionsSetValue() is called before the PetscInitialize() we cannot call 22c4762a1bSJed Brown ! CHKERRA() on the error code and just return it directly. 23c4762a1bSJed Brown 24c4762a1bSJed Brown ! We can now change the communicator universe for PETSc 25c4762a1bSJed Brown 26*f8402805SBarry Smith PetscCallMPIA(MPI_Comm_size(MPI_COMM_WORLD,size,ierr)) 27*f8402805SBarry Smith PetscCallMPIA(MPI_Comm_rank(MPI_COMM_WORLD,rank,ierr)) 28*f8402805SBarry Smith write(outputString,*) 'Number of processors =',size,'rank =',rank,'\n' 29*f8402805SBarry Smith PetscCallA(PetscPrintf(PETSC_COMM_WORLD,outputString,ierr)) 30*f8402805SBarry Smith PetscCallA(PetscFinalize(ierr)) 31c4762a1bSJed Brownend program main 32c4762a1bSJed Brown 33c4762a1bSJed Brown!/*TEST 34c4762a1bSJed Brown! 35c4762a1bSJed Brown! test: 36dfd57a17SPierre Jolivet! requires: defined(PETSC_USE_LOG) 37c4762a1bSJed Brown! nsize: 2 38c4762a1bSJed Brown! args: -options_view -get_total_flops 39362febeeSStefano Zampini! filter: egrep -v "(malloc|display|nox|Total flops|saws_port_auto_select|vecscatter_mpi1|options_left|error_output_stdout|check_pointer_intensity|cuda_initialize|use_gpu_aware_mpi|checkstack)" 40c4762a1bSJed Brown! 41c4762a1bSJed Brown!TEST*/ 42