chombo-discharge
Namespaces | Functions
CD_ParallelOps.H File Reference

Agglomeration of basic MPI reductions. More...

#include <RealVect.H>
#include <CD_NamespaceHeader.H>
#include <CD_NamespaceFooter.H>
#include <CD_ParallelOpsImplem.H>
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Namespaces

 ParallelOps
 For putting a bunch of often-used MPI reductions in one place.
 

Functions

void ParallelOps::barrier () noexcept
 MPI barrier.
 
std::pair< int, int > ParallelOps::partition (const int a_N) noexcept
 Partition the input number such that each MPI rank gets an equal chunk. We assume that N is the length of some container whose indexing starts at 0. More...
 
Real ParallelOps::min (const Real &a_input) noexcept
 Get the minimum of the input, reduced over MPI ranks (in the Chombo communicator) More...
 
int ParallelOps::min (const int &a_input) noexcept
 Get the minimum of the input, reduced over MPI ranks (in the Chombo communicator) More...
 
long long int ParallelOps::min (const long long int &a_input) noexcept
 Get the minimum of the input, reduced over MPI ranks (in the Chombo communicator) More...
 
std::pair< Real, RealVect > ParallelOps::min (const Real &a_val, const RealVect &a_pos) noexcept
 Get the minimum value and the position corresponding to the minimum value of a_val. More...
 
Real ParallelOps::max (const Real &a_input) noexcept
 Get the maximum of the input, reduced over MPI ranks (in the Chombo communicator) More...
 
int ParallelOps::max (const int &a_input) noexcept
 Get the maximum of the input, reduced over MPI ranks (in the Chombo communicator) More...
 
long long ParallelOps::max (const long long &a_input) noexcept
 Get the maximum of the input, reduced over MPI ranks (in the Chombo communicator) More...
 
std::pair< Real, RealVect > ParallelOps::max (const Real &a_val, const RealVect &a_pos) noexcept
 Get the maximum value and the position corresponding to the maximum value of a_val. More...
 
std::pair< Real, int > ParallelOps::maxRank (const Real &a_val) noexcept
 Get the maximum value and the rank having the maximum value. More...
 
std::pair< Real, int > ParallelOps::minRank (const Real &a_val) noexcept
 Get the minimum value and the rank having the minimum value. More...
 
Real ParallelOps::average (const Real &a_val) noexcept
 Compute the average (across MPI ranks) of the input value. More...
 
Real ParallelOps::sum (const Real &a_value) noexcept
 Compute the sum across all MPI ranks. More...
 
int ParallelOps::sum (const int &a_value) noexcept
 Compute the sum across all MPI ranks. More...
 
long ParallelOps::sum (const long &a_value) noexcept
 Compute the sum across all MPI ranks. More...
 
long long ParallelOps::sum (const long long &a_value) noexcept
 Compute the sum across all MPI ranks. More...
 
unsigned long long ParallelOps::sum (const unsigned long long &a_value) noexcept
 Compute the sum across all MPI ranks. More...
 
Real ParallelOps::standardDeviation (const Real &a_value) noexcept
 Compute the standard deviation of the input value. More...
 
void ParallelOps::vectorSum (Vector< Real > &a_data) noexcept
 Perform a summation of all the MPI ranks's input data. More...
 
void ParallelOps::vectorSum (Vector< int > &a_data) noexcept
 Perform a summation of all the MPI ranks's input data. More...
 
void ParallelOps::vectorSum (Vector< long int > &a_data) noexcept
 Perform a summation of all the MPI ranks's input data. More...
 
void ParallelOps::vectorSum (Vector< long long int > &a_data) noexcept
 Perform a summation of all the MPI ranks's input data. More...
 

Detailed Description

Agglomeration of basic MPI reductions.

Author
Robert Marskar