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/*
* Copyright (c) 1997-1999, 2003 Massachusetts Institute of Technology
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#ifndef RFFTW_MPI_H
#define RFFTW_MPI_H
#include "fftw_mpi.h"
#include "rfftw.h"
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
/***********************************************************************/
typedef struct {
fftw_plan p_fft_x; /* plan for first dimension */
rfftwnd_plan p_fft; /* plan for subsequent dimensions */
transpose_mpi_plan p_transpose, p_transpose_inv;
fftw_complex *work; /* extra workspace, if needed */
} rfftwnd_mpi_plan_data;
typedef rfftwnd_mpi_plan_data *rfftwnd_mpi_plan;
extern rfftwnd_mpi_plan rfftwnd_mpi_create_plan(MPI_Comm comm,
int rank, const int *n,
fftw_direction dir,
int flags);
extern rfftwnd_mpi_plan rfftw2d_mpi_create_plan(MPI_Comm comm,
int nx, int ny,
fftw_direction dir, int flags);
extern rfftwnd_mpi_plan rfftw3d_mpi_create_plan(MPI_Comm comm,
int nx, int ny, int nz,
fftw_direction dir, int flags);
extern void rfftwnd_mpi_destroy_plan(rfftwnd_mpi_plan p);
extern void rfftwnd_mpi_local_sizes(rfftwnd_mpi_plan p,
int *local_nx,
int *local_x_start,
int *local_ny_after_transpose,
int *local_y_start_after_transpose,
int *total_local_size);
extern void rfftwnd_mpi(rfftwnd_mpi_plan p,
int n_fields,
fftw_real *local_data, fftw_real *work,
fftwnd_mpi_output_order output_order);
/***********************************************************************/
#ifdef __cplusplus
} /* extern "C" */
#endif /* __cplusplus */
#endif /* RFFTW_MPI_H */
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