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64 lines
2.4 KiB
C
64 lines
2.4 KiB
C
/*
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* Copyright (c) 2003, 2007-14 Matteo Frigo
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* Copyright (c) 2003, 2007-14 Massachusetts Institute of Technology
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*/
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#include "ifftw-mpi.h"
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/* r2c and c2r transforms. The sz dtensor, as usual, gives the size
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of the "logical" complex array. For the last dimension N, however,
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only N/2+1 complex numbers are stored for the complex data. Moreover,
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for the real data, the last dimension is *always* padded to a size
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2*(N/2+1). (Contrast this with the serial API, where there is only
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padding for in-place plans.) */
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/* problem.c: */
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typedef struct {
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problem super;
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dtensor *sz;
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INT vn; /* vector length (vector stride 1) */
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R *I, *O; /* contiguous interleaved arrays */
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rdft_kind kind; /* assert(kind < DHT) */
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unsigned flags; /* TRANSPOSED_IN/OUT meaningful for rnk>1 only
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SCRAMBLED_IN/OUT meaningful for 1d transforms only */
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MPI_Comm comm;
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} problem_mpi_rdft2;
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problem *XM(mkproblem_rdft2)(const dtensor *sz, INT vn,
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R *I, R *O, MPI_Comm comm,
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rdft_kind kind, unsigned flags);
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problem *XM(mkproblem_rdft2_d)(dtensor *sz, INT vn,
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R *I, R *O, MPI_Comm comm,
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rdft_kind kind, unsigned flags);
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/* solve.c: */
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void XM(rdft2_solve)(const plan *ego_, const problem *p_);
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/* plans have same operands as rdft plans, so just re-use */
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typedef plan_rdft plan_mpi_rdft2;
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#define MKPLAN_MPI_RDFT2(type, adt, apply) \
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(type *)X(mkplan_rdft)(sizeof(type), adt, apply)
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int XM(rdft2_serial_applicable)(const problem_mpi_rdft2 *p);
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/* various solvers */
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void XM(rdft2_rank_geq2_register)(planner *p);
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void XM(rdft2_rank_geq2_transposed_register)(planner *p);
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void XM(rdft2_serial_register)(planner *p);
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