#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>

Typedefs
typedef int	cp_mpi_comm_t

Functions
void	cp_mpi_init (int argc, char **argv)
	Initialize MPI with MPI_THREAD_MULTIPLE or attach to an active MPI.
void	cp_mpi_finalize (void)
	Detach from MPI and finalize it only if cp_mpi_init initialized it.
cp_mpi_comm_t	cp_mpi_get_comm_world (void)
	Returns MPI_COMM_WORLD.
cp_mpi_comm_t	cp_mpi_comm_f2c (const int fortran_comm)
	Wrapper around MPI_Comm_f2c.
int	cp_mpi_comm_c2f (const cp_mpi_comm_t comm)
	Wrapper around MPI_Comm_c2f.
int	cp_mpi_comm_rank (const cp_mpi_comm_t comm)
	Wrapper around MPI_Comm_rank.
int	cp_mpi_comm_size (const cp_mpi_comm_t comm)
	Wrapper around MPI_Comm_size.
void	cp_mpi_barrier (const cp_mpi_comm_t comm)
	Wrapper around MPI_Barrier; a null communicator is a no-op.
void	cp_mpi_dims_create (const int nnodes, const int ndims, int dims[])
	Wrapper around MPI_Dims_create.
cp_mpi_comm_t	cp_mpi_cart_create (const cp_mpi_comm_t comm_old, const int ndims, const int dims[], const int periods[], const int reorder)
	Wrapper around MPI_Cart_create.
void	cp_mpi_cart_get (const cp_mpi_comm_t comm, int maxdims, int dims[], int periods[], int coords[])
	Wrapper around MPI_Cart_get.
int	cp_mpi_cart_rank (const cp_mpi_comm_t comm, const int coords[])
	Wrapper around MPI_Cart_rank.
cp_mpi_comm_t	cp_mpi_cart_sub (const cp_mpi_comm_t comm, const int remain_dims[])
	Wrapper around MPI_Cart_sub.
void	cp_mpi_comm_free (cp_mpi_comm_t *comm)
	Wrapper around MPI_Comm_free.
bool	cp_mpi_comms_are_similar (const cp_mpi_comm_t comm1, const cp_mpi_comm_t comm2)
	Wrapper around MPI_Comm_compare.
void	cp_mpi_max_int (int *values, const int count, const cp_mpi_comm_t comm)
	Wrapper around MPI_Allreduce for op MPI_MAX and datatype MPI_INT.
void	cp_mpi_max_uint64 (uint64_t *values, const int count, const cp_mpi_comm_t comm)
	Wrapper around MPI_Allreduce for op MPI_MAX and datatype MPI_UINT64_T.
void	cp_mpi_max_double (double *values, const int count, const cp_mpi_comm_t comm)
	Wrapper around MPI_Allreduce for op MPI_MAX and datatype MPI_DOUBLE.
void	cp_mpi_sum_int (int *values, const int count, const cp_mpi_comm_t comm)
	Wrapper around MPI_Allreduce for op MPI_SUM and datatype MPI_INT.
void	cp_mpi_sum_long (long *values, const int count, const cp_mpi_comm_t comm)
	Wrapper around MPI_Allreduce for op MPI_SUM and datatype MPI_LONG.
void	cp_mpi_sum_int64 (int64_t *values, const int count, const cp_mpi_comm_t comm)
	Wrapper around MPI_Allreduce for op MPI_SUM and datatype MPI_INT64_T.
void	cp_mpi_sum_double (double *values, const int count, const cp_mpi_comm_t comm)
	Wrapper around MPI_Allreduce for op MPI_SUM and datatype MPI_DOUBLE.
int	cp_mpi_sendrecv_byte (const void sendbuf, const int sendcount, const int dest, const int sendtag, void recvbuf, const int recvcount, const int source, const int recvtag, const cp_mpi_comm_t comm)
	Wrapper around MPI_Sendrecv for datatype MPI_BYTE.
int	cp_mpi_sendrecv_double (const double sendbuf, const int sendcount, const int dest, const int sendtag, double recvbuf, const int recvcount, const int source, const int recvtag, const cp_mpi_comm_t comm)
	Wrapper around MPI_Sendrecv for datatype MPI_DOUBLE.
void	cp_mpi_alltoall_int (const int sendbuf, const int sendcount, int recvbuf, const int recvcount, const cp_mpi_comm_t comm)
	Wrapper around MPI_Alltoall for datatype MPI_INT.
void	cp_mpi_alltoallv_byte (const void sendbuf, const int sendcounts, const int sdispls, void recvbuf, const int recvcounts, const int rdispls, const cp_mpi_comm_t comm)
	Wrapper around MPI_Alltoallv for datatype MPI_BYTE.
void	cp_mpi_alltoallv_double (const double sendbuf, const int sendcounts, const int sdispls, double recvbuf, const int recvcounts, const int rdispls, const cp_mpi_comm_t comm)
	Wrapper around MPI_Alltoallv for datatype MPI_DOUBLE.
void *	cp_mpi_alloc_mem (size_t size)
	Wrapper around MPI_Alloc_mem.
void	cp_mpi_free_mem (void *ptr)
	Wrapper around MPI_Free_mem.

Typedef Documentation

◆ cp_mpi_comm_t

typedef int cp_mpi_comm_t

Definition at line 18 of file cp_mpi.h.

Function Documentation

◆ cp_mpi_init()

void cp_mpi_init	(	int *	argc,
		char ***	argv )

Initialize MPI with MPI_THREAD_MULTIPLE or attach to an active MPI.

Must be called outside OpenMP parallel regions and paired with cp_mpi_finalize.

Author: Ole Schuett; Ole Schuett

Definition at line 78 of file cp_mpi.c.

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◆ cp_mpi_finalize()

void cp_mpi_finalize ( void )

Detach from MPI and finalize it only if cp_mpi_init initialized it.

Must be called outside OpenMP parallel regions.

Author: Ole Schuett; Ole Schuett

Definition at line 112 of file cp_mpi.c.

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◆ cp_mpi_get_comm_world()

cp_mpi_comm_t cp_mpi_get_comm_world ( void )

Returns MPI_COMM_WORLD.

Author: Ole Schuett

Definition at line 138 of file cp_mpi.c.

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◆ cp_mpi_comm_f2c()

cp_mpi_comm_t cp_mpi_comm_f2c ( const int fortran_comm )

Wrapper around MPI_Comm_f2c.

Author: Ole Schuett

Definition at line 150 of file cp_mpi.c.

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◆ cp_mpi_comm_c2f()

int cp_mpi_comm_c2f ( const cp_mpi_comm_t comm )

Wrapper around MPI_Comm_c2f.

Author: Ole Schuett

Definition at line 164 of file cp_mpi.c.

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◆ cp_mpi_comm_rank()

int cp_mpi_comm_rank ( const cp_mpi_comm_t comm )

Wrapper around MPI_Comm_rank.

Author: Ole Schuett

Definition at line 177 of file cp_mpi.c.

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◆ cp_mpi_comm_size()

int cp_mpi_comm_size ( const cp_mpi_comm_t comm )

Wrapper around MPI_Comm_size.

Author: Ole Schuett

Definition at line 194 of file cp_mpi.c.

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◆ cp_mpi_barrier()

void cp_mpi_barrier ( const cp_mpi_comm_t comm )

Wrapper around MPI_Barrier; a null communicator is a no-op.

Definition at line 210 of file cp_mpi.c.

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◆ cp_mpi_dims_create()

void cp_mpi_dims_create	(	const int	nnodes,
		const int	ndims,
		int	dims[] )

Wrapper around MPI_Dims_create.

Author: Ole Schuett

Definition at line 224 of file cp_mpi.c.

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◆ cp_mpi_cart_create()

cp_mpi_comm_t cp_mpi_cart_create	(	const cp_mpi_comm_t	comm_old,
		const int	ndims,
		const int	dims[],
		const int	periods[],
		const int	reorder )

Wrapper around MPI_Cart_create.

Author: Ole Schuett

Definition at line 239 of file cp_mpi.c.

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◆ cp_mpi_cart_get()

void cp_mpi_cart_get	(	const cp_mpi_comm_t	comm,
		int	maxdims,
		int	dims[],
		int	periods[],
		int	coords[] )

Wrapper around MPI_Cart_get.

Author: Ole Schuett

Definition at line 261 of file cp_mpi.c.

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◆ cp_mpi_cart_rank()

int cp_mpi_cart_rank	(	const cp_mpi_comm_t	comm,
		const int	coords[] )

Wrapper around MPI_Cart_rank.

Author: Ole Schuett

Definition at line 279 of file cp_mpi.c.

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◆ cp_mpi_cart_sub()

cp_mpi_comm_t cp_mpi_cart_sub	(	const cp_mpi_comm_t	comm,
		const int	remain_dims[] )

Wrapper around MPI_Cart_sub.

Author: Ole Schuett

Definition at line 295 of file cp_mpi.c.

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◆ cp_mpi_comm_free()

void cp_mpi_comm_free ( cp_mpi_comm_t * comm )

Wrapper around MPI_Comm_free.

Author: Ole Schuett

Definition at line 313 of file cp_mpi.c.

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◆ cp_mpi_comms_are_similar()

bool cp_mpi_comms_are_similar	(	const cp_mpi_comm_t	comm1,
		const cp_mpi_comm_t	comm2 )

Wrapper around MPI_Comm_compare.

Author: Ole Schuett

Definition at line 326 of file cp_mpi.c.

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◆ cp_mpi_max_int()

void cp_mpi_max_int	(	int *	values,
		const int	count,
		const cp_mpi_comm_t	comm )

Wrapper around MPI_Allreduce for op MPI_MAX and datatype MPI_INT.

Author: Ole Schuett

Definition at line 343 of file cp_mpi.c.

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◆ cp_mpi_max_uint64()

void cp_mpi_max_uint64	(	uint64_t *	values,
		const int	count,
		const cp_mpi_comm_t	comm )

Wrapper around MPI_Allreduce for op MPI_MAX and datatype MPI_UINT64_T.

Author: Hans Pabst; Ole Schuett

Definition at line 366 of file cp_mpi.c.

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◆ cp_mpi_max_double()

void cp_mpi_max_double	(	double *	values,
		const int	count,
		const cp_mpi_comm_t	comm )

Wrapper around MPI_Allreduce for op MPI_MAX and datatype MPI_DOUBLE.

Author: Ole Schuett

Definition at line 390 of file cp_mpi.c.

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◆ cp_mpi_sum_int()

void cp_mpi_sum_int	(	int *	values,
		const int	count,
		const cp_mpi_comm_t	comm )

Wrapper around MPI_Allreduce for op MPI_SUM and datatype MPI_INT.

Author: Ole Schuett

Definition at line 414 of file cp_mpi.c.

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◆ cp_mpi_sum_long()

void cp_mpi_sum_long	(	long *	values,
		const int	count,
		const cp_mpi_comm_t	comm )

Wrapper around MPI_Allreduce for op MPI_SUM and datatype MPI_LONG.

Author: Hans Pabst

Definition at line 437 of file cp_mpi.c.

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◆ cp_mpi_sum_int64()

void cp_mpi_sum_int64	(	int64_t *	values,
		const int	count,
		const cp_mpi_comm_t	comm )

Wrapper around MPI_Allreduce for op MPI_SUM and datatype MPI_INT64_T.

Author: Ole Schuett

Definition at line 460 of file cp_mpi.c.

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◆ cp_mpi_sum_double()

void cp_mpi_sum_double	(	double *	values,
		const int	count,
		const cp_mpi_comm_t	comm )

Wrapper around MPI_Allreduce for op MPI_SUM and datatype MPI_DOUBLE.

Author: Ole Schuett

Definition at line 484 of file cp_mpi.c.

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◆ cp_mpi_sendrecv_byte()

int cp_mpi_sendrecv_byte	(	const void *	sendbuf,
		const int	sendcount,
		const int	dest,
		const int	sendtag,
		void *	recvbuf,
		const int	recvcount,
		const int	source,
		const int	recvtag,
		const cp_mpi_comm_t	comm )

Wrapper around MPI_Sendrecv for datatype MPI_BYTE.

Author: Ole Schuett

Definition at line 508 of file cp_mpi.c.

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◆ cp_mpi_sendrecv_double()

int cp_mpi_sendrecv_double	(	const double *	sendbuf,
		const int	sendcount,
		const int	dest,
		const int	sendtag,
		double *	recvbuf,
		const int	recvcount,
		const int	source,
		const int	recvtag,
		const cp_mpi_comm_t	comm )

Wrapper around MPI_Sendrecv for datatype MPI_DOUBLE.

Author: Ole Schuett

Definition at line 538 of file cp_mpi.c.

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◆ cp_mpi_alltoall_int()

void cp_mpi_alltoall_int	(	const int *	sendbuf,
		const int	sendcount,
		int *	recvbuf,
		const int	recvcount,
		const cp_mpi_comm_t	comm )

Wrapper around MPI_Alltoall for datatype MPI_INT.

Author: Ole Schuett

Definition at line 568 of file cp_mpi.c.

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◆ cp_mpi_alltoallv_byte()

void cp_mpi_alltoallv_byte	(	const void *	sendbuf,
		const int *	sendcounts,
		const int *	sdispls,
		void *	recvbuf,
		const int *	recvcounts,
		const int *	rdispls,
		const cp_mpi_comm_t	comm )

Wrapper around MPI_Alltoallv for datatype MPI_BYTE.

Author: Ole Schuett

Definition at line 584 of file cp_mpi.c.

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◆ cp_mpi_alltoallv_double()

void cp_mpi_alltoallv_double	(	const double *	sendbuf,
		const int *	sendcounts,
		const int *	sdispls,
		double *	recvbuf,
		const int *	recvcounts,
		const int *	rdispls,
		const cp_mpi_comm_t	comm )

Wrapper around MPI_Alltoallv for datatype MPI_DOUBLE.

Author: Ole Schuett

Definition at line 603 of file cp_mpi.c.

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◆ cp_mpi_alloc_mem()

void * cp_mpi_alloc_mem ( size_t size )

Wrapper around MPI_Alloc_mem.

Author: Hans Pabst

Definition at line 622 of file cp_mpi.c.

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◆ cp_mpi_free_mem()

void cp_mpi_free_mem ( void * mem )

Wrapper around MPI_Free_mem.

Author: Hans Pabst

Definition at line 638 of file cp_mpi.c.

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Typedefs

Functions

Typedef Documentation

◆ cp_mpi_comm_t

Function Documentation

◆ cp_mpi_init()

◆ cp_mpi_finalize()

◆ cp_mpi_get_comm_world()

◆ cp_mpi_comm_f2c()

◆ cp_mpi_comm_c2f()

◆ cp_mpi_comm_rank()

◆ cp_mpi_comm_size()

◆ cp_mpi_barrier()

◆ cp_mpi_dims_create()

◆ cp_mpi_cart_create()

◆ cp_mpi_cart_get()

◆ cp_mpi_cart_rank()

◆ cp_mpi_cart_sub()

◆ cp_mpi_comm_free()

◆ cp_mpi_comms_are_similar()

◆ cp_mpi_max_int()

◆ cp_mpi_max_uint64()

◆ cp_mpi_max_double()

◆ cp_mpi_sum_int()

◆ cp_mpi_sum_long()

◆ cp_mpi_sum_int64()

◆ cp_mpi_sum_double()

◆ cp_mpi_sendrecv_byte()

◆ cp_mpi_sendrecv_double()

◆ cp_mpi_alltoall_int()

◆ cp_mpi_alltoallv_byte()

◆ cp_mpi_alltoallv_double()

◆ cp_mpi_alloc_mem()

◆ cp_mpi_free_mem()