# comm

MPI_Comm used in the current routine or object

### See Also

size, rank

Level:beginner
Location: include/petsc.h
Index of all Sys routines
Table of Contents for all manual pages
Index of all manual pages

### Examples

src/vec/vec/examples/tutorials/ex7.c.html
src/vec/vec/examples/tutorials/ex7f.F.html
src/mat/examples/tutorials/ex5.c.html
src/ksp/pc/examples/tutorials/ex1.c.html
src/ksp/pc/examples/tutorials/ex2.c.html
src/ksp/ksp/examples/tutorials/ex29.c.html
src/ksp/ksp/examples/tutorials/ex33.c.html
src/ksp/ksp/examples/tutorials/ex14f.F.html
src/snes/examples/tutorials/ex5.c.html
src/snes/examples/tutorials/ex19.c.html
src/snes/examples/tutorials/ex22.c.html