Dune Core Modules (2.6.0)
collectivecommunication.hh
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277 int scatter (const T* send, T* recv, int len, int root) const // note out must have same size as in
Various helper classes derived from from std::binary_function for stl-style functional programming.
Collective communication interface and sequential default implementation.
Definition: collectivecommunication.hh:80
int scatterv(const T *send, int *sendlen, int *displ, T *recv, int recvlen, int root) const
Scatter arrays of variable length from a root to all other tasks.
Definition: collectivecommunication.hh:304
int barrier() const
Wait until all processes have arrived at this point in the program.
Definition: collectivecommunication.hh:196
T max(const T &in) const
Compute the maximum of the argument over all processes and return the result in every process....
Definition: collectivecommunication.hh:175
int scatter(const T *send, T *recv, int len, int root) const
Scatter array from a root to all other task.
Definition: collectivecommunication.hh:277
CollectiveCommunication()
Construct default object.
Definition: collectivecommunication.hh:83
int broadcast(T *inout, int len, int root) const
Distribute an array from the process with rank root to all other processes.
Definition: collectivecommunication.hh:205
int max(T *inout, int len) const
Compute the maximum over all processes for each component of an array and return the result in every ...
Definition: collectivecommunication.hh:186
T min(const T &in) const
Compute the minimum of the argument over all processes and return the result in every process....
Definition: collectivecommunication.hh:153
int rank() const
Return rank, is between 0 and size()-1.
Definition: collectivecommunication.hh:94
int sum(T *inout, int len) const
Compute the sum over all processes for each component of an array and return the result in every proc...
Definition: collectivecommunication.hh:120
T prod(const T &in) const
Compute the product of the argument over all processes and return the result in every process....
Definition: collectivecommunication.hh:131
int allreduce(Type *inout, int len) const
Compute something over all processes for each component of an array and return the result in every pr...
Definition: collectivecommunication.hh:372
int allgather(const T *sbuf, int count, T *rbuf) const
Gathers data from all tasks and distribute it to all.
Definition: collectivecommunication.hh:327
void allreduce(const Type *in, Type *out, int len) const
Compute something over all processes for each component of an array and return the result in every pr...
Definition: collectivecommunication.hh:393
int prod(T *inout, int len) const
Compute the product over all processes for each component of an array and return the result in every ...
Definition: collectivecommunication.hh:142
int size() const
Number of processes in set, is greater than 0.
Definition: collectivecommunication.hh:100
int allgatherv(const T *in, int sendlen, T *out, int *recvlen, int *displ) const
Gathers data of variable length from all tasks and distribute it to all.
Definition: collectivecommunication.hh:351
T sum(const T &in) const
Compute the sum of the argument over all processes and return the result in every process....
Definition: collectivecommunication.hh:109
int gatherv(const T *in, int sendlen, T *out, int *recvlen, int *displ, int root) const
Gather arrays of variable size on root task.
Definition: collectivecommunication.hh:254
int gather(const T *in, T *out, int len, int root) const
Gather arrays on root task.
Definition: collectivecommunication.hh:226
CollectiveCommunication(const Communicator &)
Constructor with a given communicator.
Definition: collectivecommunication.hh:90
int min(T *inout, int len) const
Compute the minimum over all processes for each component of an array and return the result in every ...
Definition: collectivecommunication.hh:164
A few common exception classes.
#define DUNE_UNUSED_PARAMETER(parm)
A macro to mark intentionally unused function parameters with.
Definition: unused.hh:25
Definition of the DUNE_UNUSED macro for the case that config.h is not available.
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