numerics/api/mpi__stubs_8cpp_source.html

#include "core/parallel/mpi_ops.hpp"

#include <cmath>


namespace num::mpi {


void init(int*, char***) {}

void finalize() {}

int rank(MPI_Comm) { return 0; }

int size(MPI_Comm) { return 1; }

real dot(const Vector& x, const Vector& y, MPI_Comm) { return num::dot(x, y); }

real norm(const Vector& x, MPI_Comm) { return num::norm(x); }

void allreduce_sum(real*, idx, MPI_Comm) {}

void broadcast(real*, idx, int, MPI_Comm) {}


} // namespace num::mpi

mpi_ops.hpp
MPI distributed operations.

MPI_Comm
int MPI_Comm
Definition mpi_ops.hpp:11

num::mpi
Definition mpi_ops.hpp:15

num::mpi::broadcast
void broadcast(real *data, idx n, int root=0, MPI_Comm comm=MPI_COMM_WORLD)
Broadcast from root.
Definition mpi_ops.cpp:33

num::mpi::allreduce_sum
void allreduce_sum(real *data, idx n, MPI_Comm comm=MPI_COMM_WORLD)
Allreduce sum.
Definition mpi_ops.cpp:29

num::mpi::norm
real norm(const Vector &x, MPI_Comm comm=MPI_COMM_WORLD)
Distributed norm.
Definition mpi_ops.cpp:23

num::mpi::init
void init(int *argc, char ***argv)
Initialize MPI (call once)
Definition mpi_ops.cpp:6

num::mpi::finalize
void finalize()
Finalize MPI.
Definition mpi_ops.cpp:7

num::mpi::size
int size(MPI_Comm comm=MPI_COMM_WORLD)
Get communicator size.
Definition mpi_ops.cpp:13

num::mpi::rank
int rank(MPI_Comm comm=MPI_COMM_WORLD)
Get communicator rank.
Definition mpi_ops.cpp:9

num::mpi::dot
real dot(const Vector &x, const Vector &y, MPI_Comm comm=MPI_COMM_WORLD)
Distributed dot product (each rank holds partial vector)
Definition mpi_ops.cpp:17

num::real
double real
Definition types.hpp:10

num::idx
std::size_t idx
Definition types.hpp:11

num::dot
real dot(const Vector &x, const Vector &y, Backend b=default_backend)
dot product
Definition vector.cpp:57

num::Vector
BasicVector< real > Vector
Real-valued dense vector with full backend dispatch (CPU + GPU)
Definition vector.hpp:122

num::norm
real norm(const Vector &x, Backend b=default_backend)
Euclidean norm.
Definition vector.cpp:69