petsc-3.3-p7 2013-05-11
PETSC_COMM_WORLD
the equivalent of the MPI_COMM_WORLD communicator which represents all the processs that PETSc knows about.
Notes: By default PETSC_COMM_WORLD and MPI_COMM_WORLD are identical unless you wish to
run PETSc on ONLY a subset of MPI_COMM_WORLD. In that case create your new (smaller)
communicator, call it, say comm, and set PETSC_COMM_WORLD = comm BEFORE calling
PetscInitialize()
See Also
PETSC_COMM_SELF
Level:beginner
Location:include/petscsys.h
Index of all Sys routines
Table of Contents for all manual pages
Index of all manual pages
Examples
src/sys/viewer/examples/tutorials/ex1.c.html
src/sys/viewer/examples/tutorials/ex1f90.F90.html
src/sys/random/examples/tutorials/ex1.c.html
src/sys/random/examples/tutorials/ex2.c.html
src/sys/examples/tutorials/ex1.c.html
src/sys/examples/tutorials/ex2.c.html
src/sys/examples/tutorials/ex4.c.html
src/sys/examples/tutorials/ex5.c.html
src/sys/examples/tutorials/ex7.c.html
src/sys/examples/tutorials/ex4f.F.html
src/sys/examples/tutorials/ex4f90.F90.html