hypre_ParVector *
hypre_ParVectorCreate( MPI_Comm comm,
HYPRE_Int global_size,
HYPRE_Int *partitioning)
{
hypre_ParVector *vector;
HYPRE_Int num_procs, my_id;
if (global_size < 0)
{
hypre_error_in_arg(2);
return NULL;
}
vector = hypre_CTAlloc(hypre_ParVector, 1);
hypre_MPI_Comm_rank(comm,&my_id);
if (!partitioning)
{
hypre_MPI_Comm_size(comm,&num_procs);
#ifdef HYPRE_NO_GLOBAL_PARTITION
hypre_GenerateLocalPartitioning(global_size, num_procs, my_id, &partitioning);
#else
hypre_GeneratePartitioning(global_size, num_procs, &partitioning);
#endif
}
hypre_ParVectorAssumedPartition(vector) = NULL;
hypre_ParVectorComm(vector) = comm;
hypre_ParVectorGlobalSize(vector) = global_size;
#ifdef HYPRE_NO_GLOBAL_PARTITION
hypre_ParVectorFirstIndex(vector) = partitioning[0];
hypre_ParVectorLastIndex(vector) = partitioning[1]-1;
hypre_ParVectorPartitioning(vector) = partitioning;
hypre_ParVectorLocalVector(vector) =
hypre_SeqVectorCreate(partitioning[1]-partitioning[0]);
#else
hypre_ParVectorFirstIndex(vector) = partitioning[my_id];
hypre_ParVectorLastIndex(vector) = partitioning[my_id+1] -1;
hypre_ParVectorPartitioning(vector) = partitioning;
hypre_ParVectorLocalVector(vector) =
hypre_SeqVectorCreate(partitioning[my_id+1]-partitioning[my_id]);
#endif
/* set defaults */
hypre_ParVectorOwnsData(vector) = 1;
hypre_ParVectorOwnsPartitioning(vector) = 1;
return vector;
}
HYPRE_Int
hypre_ParVectorDestroy( hypre_ParVector *vector )
{
if (vector)
{
if ( hypre_ParVectorOwnsData(vector) )
{
hypre_SeqVectorDestroy(hypre_ParVectorLocalVector(vector));
}
if ( hypre_ParVectorOwnsPartitioning(vector) )
{
hypre_TFree(hypre_ParVectorPartitioning(vector));
}
if (hypre_ParVectorAssumedPartition(vector))
{
hypre_AssumedPartitionDestroy(hypre_ParVectorAssumedPartition(vector));
}
hypre_TFree(vector);
}
return hypre_error_flag;
}
