Chris@82: /*
Chris@82:  * Copyright (c) 2003, 2007-14 Matteo Frigo
Chris@82:  * Copyright (c) 2003, 2007-14 Massachusetts Institute of Technology
Chris@82:  *
Chris@82:  * The following statement of license applies *only* to this header file,
Chris@82:  * and *not* to the other files distributed with FFTW or derived therefrom:
Chris@82:  * 
Chris@82:  * Redistribution and use in source and binary forms, with or without
Chris@82:  * modification, are permitted provided that the following conditions
Chris@82:  * are met:
Chris@82:  *
Chris@82:  * 1. Redistributions of source code must retain the above copyright
Chris@82:  *    notice, this list of conditions and the following disclaimer.
Chris@82:  *
Chris@82:  * 2. Redistributions in binary form must reproduce the above copyright
Chris@82:  *    notice, this list of conditions and the following disclaimer in the
Chris@82:  *    documentation and/or other materials provided with the distribution.
Chris@82:  *
Chris@82:  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
Chris@82:  * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
Chris@82:  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
Chris@82:  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
Chris@82:  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
Chris@82:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
Chris@82:  * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
Chris@82:  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
Chris@82:  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
Chris@82:  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
Chris@82:  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Chris@82:  */
Chris@82: 
Chris@82: /***************************** NOTE TO USERS *********************************
Chris@82:  *
Chris@82:  *                 THIS IS A HEADER FILE, NOT A MANUAL
Chris@82:  *
Chris@82:  *    If you want to know how to use FFTW, please read the manual,
Chris@82:  *    online at http://www.fftw.org/doc/ and also included with FFTW.
Chris@82:  *    For a quick start, see the manual's tutorial section.
Chris@82:  *
Chris@82:  *   (Reading header files to learn how to use a library is a habit
Chris@82:  *    stemming from code lacking a proper manual.  Arguably, it's a
Chris@82:  *    *bad* habit in most cases, because header files can contain
Chris@82:  *    interfaces that are not part of the public, stable API.)
Chris@82:  *
Chris@82:  ****************************************************************************/
Chris@82: 
Chris@82: #ifndef FFTW3_MPI_H
Chris@82: #define FFTW3_MPI_H
Chris@82: 
Chris@82: #include <fftw3.h>
Chris@82: #include <mpi.h>
Chris@82: 
Chris@82: #ifdef __cplusplus
Chris@82: extern "C"
Chris@82: {
Chris@82: #endif /* __cplusplus */
Chris@82: 
Chris@82: struct fftw_mpi_ddim_do_not_use_me {
Chris@82:      ptrdiff_t n;                     /* dimension size */
Chris@82:      ptrdiff_t ib;                    /* input block */
Chris@82:      ptrdiff_t ob;                    /* output block */
Chris@82: };
Chris@82: 
Chris@82: /*
Chris@82:   huge second-order macro that defines prototypes for all API
Chris@82:   functions.  We expand this macro for each supported precision
Chris@82:  
Chris@82:   XM: name-mangling macro (MPI)
Chris@82:   X: name-mangling macro (serial)
Chris@82:   R: real data type
Chris@82:   C: complex data type
Chris@82: */
Chris@82: 
Chris@82: #define FFTW_MPI_DEFINE_API(XM, X, R, C)			\
Chris@82: 								\
Chris@82: typedef struct fftw_mpi_ddim_do_not_use_me XM(ddim);		\
Chris@82: 								\
Chris@82: FFTW_EXTERN void XM(init)(void);				\
Chris@82: FFTW_EXTERN void XM(cleanup)(void);				\
Chris@82: 								\
Chris@82: FFTW_EXTERN ptrdiff_t XM(local_size_many_transposed)		\
Chris@82:      (int rnk, const ptrdiff_t *n, ptrdiff_t howmany,		\
Chris@82:       ptrdiff_t block0, ptrdiff_t block1, MPI_Comm comm,	\
Chris@82:       ptrdiff_t *local_n0, ptrdiff_t *local_0_start,		\
Chris@82:       ptrdiff_t *local_n1, ptrdiff_t *local_1_start);		\
Chris@82: FFTW_EXTERN ptrdiff_t XM(local_size_many)			\
Chris@82:      (int rnk, const ptrdiff_t *n, ptrdiff_t howmany,		\
Chris@82:       ptrdiff_t block0, MPI_Comm comm,				\
Chris@82:       ptrdiff_t *local_n0, ptrdiff_t *local_0_start);		\
Chris@82: FFTW_EXTERN ptrdiff_t XM(local_size_transposed)			\
Chris@82:      (int rnk, const ptrdiff_t *n, MPI_Comm comm,		\
Chris@82:       ptrdiff_t *local_n0, ptrdiff_t *local_0_start,		\
Chris@82:       ptrdiff_t *local_n1, ptrdiff_t *local_1_start);		\
Chris@82: FFTW_EXTERN ptrdiff_t XM(local_size)				\
Chris@82:      (int rnk, const ptrdiff_t *n, MPI_Comm comm,		\
Chris@82:       ptrdiff_t *local_n0, ptrdiff_t *local_0_start);		\
Chris@82: FFTW_EXTERN ptrdiff_t XM(local_size_many_1d)(			\
Chris@82:      ptrdiff_t n0, ptrdiff_t howmany,				\
Chris@82:      MPI_Comm comm, int sign, unsigned flags,			\
Chris@82:      ptrdiff_t *local_ni, ptrdiff_t *local_i_start,		\
Chris@82:      ptrdiff_t *local_no, ptrdiff_t *local_o_start);		\
Chris@82: FFTW_EXTERN ptrdiff_t XM(local_size_1d)(			\
Chris@82:      ptrdiff_t n0, MPI_Comm comm, int sign, unsigned flags,	\
Chris@82:      ptrdiff_t *local_ni, ptrdiff_t *local_i_start,		\
Chris@82:      ptrdiff_t *local_no, ptrdiff_t *local_o_start);		\
Chris@82: FFTW_EXTERN ptrdiff_t XM(local_size_2d)(			\
Chris@82:      ptrdiff_t n0, ptrdiff_t n1, MPI_Comm comm,			\
Chris@82:      ptrdiff_t *local_n0, ptrdiff_t *local_0_start);		\
Chris@82: FFTW_EXTERN ptrdiff_t XM(local_size_2d_transposed)(		\
Chris@82:      ptrdiff_t n0, ptrdiff_t n1, MPI_Comm comm,			\
Chris@82:      ptrdiff_t *local_n0, ptrdiff_t *local_0_start,		\
Chris@82:      ptrdiff_t *local_n1, ptrdiff_t *local_1_start);		\
Chris@82: FFTW_EXTERN ptrdiff_t XM(local_size_3d)(			\
Chris@82:      ptrdiff_t n0, ptrdiff_t n1, ptrdiff_t n2, MPI_Comm comm,	\
Chris@82:      ptrdiff_t *local_n0, ptrdiff_t *local_0_start);		\
Chris@82: FFTW_EXTERN ptrdiff_t XM(local_size_3d_transposed)(		\
Chris@82:      ptrdiff_t n0, ptrdiff_t n1, ptrdiff_t n2, MPI_Comm comm,	\
Chris@82:      ptrdiff_t *local_n0, ptrdiff_t *local_0_start,		\
Chris@82:      ptrdiff_t *local_n1, ptrdiff_t *local_1_start);		\
Chris@82: 								\
Chris@82: FFTW_EXTERN X(plan) XM(plan_many_transpose)			\
Chris@82:      (ptrdiff_t n0, ptrdiff_t n1,				\
Chris@82:       ptrdiff_t howmany, ptrdiff_t block0, ptrdiff_t block1,	\
Chris@82:       R *in, R *out, MPI_Comm comm, unsigned flags);		\
Chris@82: FFTW_EXTERN X(plan) XM(plan_transpose)				\
Chris@82:      (ptrdiff_t n0, ptrdiff_t n1,				\
Chris@82:       R *in, R *out, MPI_Comm comm, unsigned flags);		\
Chris@82: 								\
Chris@82: FFTW_EXTERN X(plan) XM(plan_many_dft)				\
Chris@82:      (int rnk, const ptrdiff_t *n, ptrdiff_t howmany,		\
Chris@82:       ptrdiff_t block, ptrdiff_t tblock, C *in, C *out,		\
Chris@82:       MPI_Comm comm, int sign, unsigned flags);			\
Chris@82: FFTW_EXTERN X(plan) XM(plan_dft)				\
Chris@82:      (int rnk, const ptrdiff_t *n, C *in, C *out,		\
Chris@82:       MPI_Comm comm, int sign, unsigned flags);			\
Chris@82: FFTW_EXTERN X(plan) XM(plan_dft_1d)				\
Chris@82:      (ptrdiff_t n0, C *in, C *out,				\
Chris@82:       MPI_Comm comm, int sign, unsigned flags);			\
Chris@82: FFTW_EXTERN X(plan) XM(plan_dft_2d)				\
Chris@82:      (ptrdiff_t n0, ptrdiff_t n1, C *in, C *out,		\
Chris@82:       MPI_Comm comm, int sign, unsigned flags);			\
Chris@82: FFTW_EXTERN X(plan) XM(plan_dft_3d)				\
Chris@82:      (ptrdiff_t n0, ptrdiff_t n1, ptrdiff_t n2, C *in, C *out,	\
Chris@82:       MPI_Comm comm, int sign, unsigned flags);			\
Chris@82: 								\
Chris@82: FFTW_EXTERN X(plan) XM(plan_many_r2r)				\
Chris@82:      (int rnk, const ptrdiff_t *n, ptrdiff_t howmany,		\
Chris@82:       ptrdiff_t iblock, ptrdiff_t oblock, R *in, R *out,	\
Chris@82:       MPI_Comm comm, const X(r2r_kind) *kind, unsigned flags);	\
Chris@82: FFTW_EXTERN X(plan) XM(plan_r2r)				\
Chris@82:      (int rnk, const ptrdiff_t *n, R *in, R *out,		\
Chris@82:       MPI_Comm comm, const X(r2r_kind) *kind, unsigned flags);	\
Chris@82: FFTW_EXTERN X(plan) XM(plan_r2r_2d)				\
Chris@82:      (ptrdiff_t n0, ptrdiff_t n1, R *in, R *out, MPI_Comm comm,	\
Chris@82:       X(r2r_kind) kind0, X(r2r_kind) kind1, unsigned flags);	\
Chris@82: FFTW_EXTERN X(plan) XM(plan_r2r_3d)				\
Chris@82:      (ptrdiff_t n0, ptrdiff_t n1, ptrdiff_t n2,			\
Chris@82:       R *in, R *out, MPI_Comm comm, X(r2r_kind) kind0,		\
Chris@82:       X(r2r_kind) kind1, X(r2r_kind) kind2, unsigned flags);	\
Chris@82: 								\
Chris@82: FFTW_EXTERN X(plan) XM(plan_many_dft_r2c)			\
Chris@82:      (int rnk, const ptrdiff_t *n, ptrdiff_t howmany,		\
Chris@82:       ptrdiff_t iblock, ptrdiff_t oblock, R *in, C *out,	\
Chris@82:       MPI_Comm comm, unsigned flags);				\
Chris@82: FFTW_EXTERN X(plan) XM(plan_dft_r2c)				\
Chris@82:      (int rnk, const ptrdiff_t *n, R *in, C *out,		\
Chris@82:       MPI_Comm comm, unsigned flags);				\
Chris@82: FFTW_EXTERN X(plan) XM(plan_dft_r2c_2d)				\
Chris@82:      (ptrdiff_t n0, ptrdiff_t n1, R *in, C *out,		\
Chris@82:       MPI_Comm comm, unsigned flags);				\
Chris@82: FFTW_EXTERN X(plan) XM(plan_dft_r2c_3d)				\
Chris@82:      (ptrdiff_t n0, ptrdiff_t n1, ptrdiff_t n2, R *in, C *out,	\
Chris@82:       MPI_Comm comm, unsigned flags);				\
Chris@82: 								\
Chris@82: FFTW_EXTERN X(plan) XM(plan_many_dft_c2r)			\
Chris@82:      (int rnk, const ptrdiff_t *n, ptrdiff_t howmany,		\
Chris@82:       ptrdiff_t iblock, ptrdiff_t oblock, C *in, R *out,	\
Chris@82:       MPI_Comm comm, unsigned flags);				\
Chris@82: FFTW_EXTERN X(plan) XM(plan_dft_c2r)				\
Chris@82:      (int rnk, const ptrdiff_t *n, C *in, R *out,		\
Chris@82:       MPI_Comm comm, unsigned flags);				\
Chris@82: FFTW_EXTERN X(plan) XM(plan_dft_c2r_2d)				\
Chris@82:      (ptrdiff_t n0, ptrdiff_t n1, C *in, R *out,		\
Chris@82:       MPI_Comm comm, unsigned flags);				\
Chris@82: FFTW_EXTERN X(plan) XM(plan_dft_c2r_3d)				\
Chris@82:      (ptrdiff_t n0, ptrdiff_t n1, ptrdiff_t n2, C *in, R *out,	\
Chris@82:       MPI_Comm comm, unsigned flags);				\
Chris@82: 								\
Chris@82: FFTW_EXTERN void XM(gather_wisdom)(MPI_Comm comm_);		\
Chris@82: FFTW_EXTERN void XM(broadcast_wisdom)(MPI_Comm comm_);          \
Chris@82: 								\
Chris@82: FFTW_EXTERN void XM(execute_dft)(X(plan) p, C *in, C *out);	\
Chris@82: FFTW_EXTERN void XM(execute_dft_r2c)(X(plan) p, R *in, C *out);	\
Chris@82: FFTW_EXTERN void XM(execute_dft_c2r)(X(plan) p, C *in, R *out);	\
Chris@82: FFTW_EXTERN void XM(execute_r2r)(X(plan) p, R *in, R *out); 
Chris@82: 
Chris@82: 
Chris@82: 
Chris@82: /* end of FFTW_MPI_DEFINE_API macro */
Chris@82: 
Chris@82: #define FFTW_MPI_MANGLE_DOUBLE(name) FFTW_MANGLE_DOUBLE(FFTW_CONCAT(mpi_,name))
Chris@82: #define FFTW_MPI_MANGLE_FLOAT(name) FFTW_MANGLE_FLOAT(FFTW_CONCAT(mpi_,name))
Chris@82: #define FFTW_MPI_MANGLE_LONG_DOUBLE(name) FFTW_MANGLE_LONG_DOUBLE(FFTW_CONCAT(mpi_,name))
Chris@82: 
Chris@82: FFTW_MPI_DEFINE_API(FFTW_MPI_MANGLE_DOUBLE, FFTW_MANGLE_DOUBLE, double, fftw_complex)
Chris@82: FFTW_MPI_DEFINE_API(FFTW_MPI_MANGLE_FLOAT, FFTW_MANGLE_FLOAT, float, fftwf_complex)
Chris@82: FFTW_MPI_DEFINE_API(FFTW_MPI_MANGLE_LONG_DOUBLE, FFTW_MANGLE_LONG_DOUBLE, long double, fftwl_complex)
Chris@82: 
Chris@82: #define FFTW_MPI_DEFAULT_BLOCK (0)
Chris@82: 
Chris@82: /* MPI-specific flags */
Chris@82: #define FFTW_MPI_SCRAMBLED_IN (1U << 27)
Chris@82: #define FFTW_MPI_SCRAMBLED_OUT (1U << 28)
Chris@82: #define FFTW_MPI_TRANSPOSED_IN (1U << 29)
Chris@82: #define FFTW_MPI_TRANSPOSED_OUT (1U << 30)
Chris@82: 
Chris@82: #ifdef __cplusplus
Chris@82: }  /* extern "C" */
Chris@82: #endif /* __cplusplus */
Chris@82: 
Chris@82: #endif /* FFTW3_MPI_H */