Dune::CollectiveCommunication< MPI_Comm > Class Template Reference
[Parallel Communication]
#include <mpicollectivecommunication.hh>
Detailed Description
template<>
class Dune::CollectiveCommunication< MPI_Comm >
Specialization of CollectiveCommunication for MPI.
Public Member Functions | |
CollectiveCommunication (const MPI_Comm &c) | |
Instantiation using a MPI communicator. | |
int | rank () const |
Return rank, is between 0 and size()-1. | |
int | size () const |
Number of processes in set, is greater than 0. | |
template<typename T> | |
T | sum (T &in) const |
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template<typename T> | |
int | sum (T *inout, int len) const |
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template<typename T> | |
T | prod (T &in) const |
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template<typename T> | |
int | prod (T *inout, int len) const |
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template<typename T> | |
T | min (T &in) const |
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template<typename T> | |
int | min (T *inout, int len) const |
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template<typename T> | |
T | max (T &in) const |
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template<typename T> | |
int | max (T *inout, int len) const |
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int | barrier () const |
Wait until all processes have arrived at this point in the program. | |
template<typename T> | |
int | broadcast (T *inout, int len, int root) const |
Distribute an array from the process with rank root to all other processes. | |
template<typename T> | |
int | gather (T *in, T *out, int len, int root) const |
Each process sends its in array of length len to the root process (including the root itself). In the root process these arrays are stored in rank order in the out array which must have size len * number of processes. |
The documentation for this class was generated from the following file: