parallel / 6-2010
.pdf
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, . MPI_Comm_group:
int MPI_Comm_group(MPI_Comm comm, MPI_Group *group)
MPI_Comm_group(comm, group, ierr)
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( MPI_Group_incl newgroup n
, oldgroup. *
ranks:
int MPI_Group_incl(MPI_Group oldgroup, int n, int *ranks, MPI_Group *newgroup)
MPI_Group_incl(oldgroup, n, ranks, newgroup, ierr)
$ ranks[0], …, ranks[n — 1], i $
ranks[i] $ . ( n = 0
MPI_GROUP_EMPTY.
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( MPI_Group_excl newgroup,
$ (group) ranks[0], …,
ranks[n — 1]:
int MPI_Group_excl(MPI_Group oldgroup, int n, int *ranks, MPI_Group *newgroup)
MPI_Group_excl(oldgroup, n, ranks, newgroup, ierr)
( n = 0 $.
2008
( MPI_Group_range_incl newgroup
group, n ,
ranks:
int MPI_Group_range_incl(MPI_Group oldgroup, int n, int ranks[][3], MPI_Group *newgroup)
MPI_Group_range_incl(oldgroup, n, ranks, newgroup, ierr)
2 ranks ( $_1,
$_1, ._1), …, ( $_n, $_n, ._n).
$ ( $ ) $_1,
$_1 + ._1, ….
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