annotate src/fftw-3.3.8/mpi/rdft2-serial.c @ 169:223a55898ab9 tip default

Add null config files
author Chris Cannam <cannam@all-day-breakfast.com>
date Mon, 02 Mar 2020 14:03:47 +0000
parents bd3cc4d1df30
children
rev   line source
cannam@167 1 /*
cannam@167 2 * Copyright (c) 2003, 2007-14 Matteo Frigo
cannam@167 3 * Copyright (c) 2003, 2007-14 Massachusetts Institute of Technology
cannam@167 4 *
cannam@167 5 * This program is free software; you can redistribute it and/or modify
cannam@167 6 * it under the terms of the GNU General Public License as published by
cannam@167 7 * the Free Software Foundation; either version 2 of the License, or
cannam@167 8 * (at your option) any later version.
cannam@167 9 *
cannam@167 10 * This program is distributed in the hope that it will be useful,
cannam@167 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
cannam@167 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
cannam@167 13 * GNU General Public License for more details.
cannam@167 14 *
cannam@167 15 * You should have received a copy of the GNU General Public License
cannam@167 16 * along with this program; if not, write to the Free Software
cannam@167 17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
cannam@167 18 *
cannam@167 19 */
cannam@167 20
cannam@167 21 /* "MPI" DFTs where all of the data is on one processor...just
cannam@167 22 call through to serial API. */
cannam@167 23
cannam@167 24 #include "mpi-rdft2.h"
cannam@167 25 #include "rdft/rdft.h"
cannam@167 26
cannam@167 27 typedef struct {
cannam@167 28 plan_mpi_rdft2 super;
cannam@167 29 plan *cld;
cannam@167 30 INT vn;
cannam@167 31 } P;
cannam@167 32
cannam@167 33 static void apply_r2c(const plan *ego_, R *I, R *O)
cannam@167 34 {
cannam@167 35 const P *ego = (const P *) ego_;
cannam@167 36 plan_rdft2 *cld;
cannam@167 37 cld = (plan_rdft2 *) ego->cld;
cannam@167 38 cld->apply(ego->cld, I, I+ego->vn, O, O+1);
cannam@167 39 }
cannam@167 40
cannam@167 41 static void apply_c2r(const plan *ego_, R *I, R *O)
cannam@167 42 {
cannam@167 43 const P *ego = (const P *) ego_;
cannam@167 44 plan_rdft2 *cld;
cannam@167 45 cld = (plan_rdft2 *) ego->cld;
cannam@167 46 cld->apply(ego->cld, O, O+ego->vn, I, I+1);
cannam@167 47 }
cannam@167 48
cannam@167 49 static void awake(plan *ego_, enum wakefulness wakefulness)
cannam@167 50 {
cannam@167 51 P *ego = (P *) ego_;
cannam@167 52 X(plan_awake)(ego->cld, wakefulness);
cannam@167 53 }
cannam@167 54
cannam@167 55 static void destroy(plan *ego_)
cannam@167 56 {
cannam@167 57 P *ego = (P *) ego_;
cannam@167 58 X(plan_destroy_internal)(ego->cld);
cannam@167 59 }
cannam@167 60
cannam@167 61 static void print(const plan *ego_, printer *p)
cannam@167 62 {
cannam@167 63 const P *ego = (const P *) ego_;
cannam@167 64 p->print(p, "(mpi-rdft2-serial %(%p%))", ego->cld);
cannam@167 65 }
cannam@167 66
cannam@167 67 int XM(rdft2_serial_applicable)(const problem_mpi_rdft2 *p)
cannam@167 68 {
cannam@167 69 return (1
cannam@167 70 && p->flags == 0 /* TRANSPOSED/SCRAMBLED_IN/OUT not supported */
cannam@167 71 && ((XM(is_local)(p->sz, IB) && XM(is_local)(p->sz, OB))
cannam@167 72 || p->vn == 0));
cannam@167 73 }
cannam@167 74
cannam@167 75 static plan *mkplan(const solver *ego, const problem *p_, planner *plnr)
cannam@167 76 {
cannam@167 77 const problem_mpi_rdft2 *p = (const problem_mpi_rdft2 *) p_;
cannam@167 78 P *pln;
cannam@167 79 plan *cld;
cannam@167 80 int my_pe;
cannam@167 81 R *r0, *r1, *cr, *ci;
cannam@167 82 static const plan_adt padt = {
cannam@167 83 XM(rdft2_solve), awake, print, destroy
cannam@167 84 };
cannam@167 85
cannam@167 86 UNUSED(ego);
cannam@167 87
cannam@167 88 /* check whether applicable: */
cannam@167 89 if (!XM(rdft2_serial_applicable)(p))
cannam@167 90 return (plan *) 0;
cannam@167 91
cannam@167 92 if (p->kind == R2HC) {
cannam@167 93 r1 = (r0 = p->I) + p->vn;
cannam@167 94 ci = (cr = p->O) + 1;
cannam@167 95 }
cannam@167 96 else {
cannam@167 97 r1 = (r0 = p->O) + p->vn;
cannam@167 98 ci = (cr = p->I) + 1;
cannam@167 99 }
cannam@167 100
cannam@167 101 MPI_Comm_rank(p->comm, &my_pe);
cannam@167 102 if (my_pe == 0 && p->vn > 0) {
cannam@167 103 INT ivs = 1 + (p->kind == HC2R), ovs = 1 + (p->kind == R2HC);
cannam@167 104 int i, rnk = p->sz->rnk;
cannam@167 105 tensor *sz = X(mktensor)(p->sz->rnk);
cannam@167 106 sz->dims[rnk - 1].is = sz->dims[rnk - 1].os = 2 * p->vn;
cannam@167 107 sz->dims[rnk - 1].n = p->sz->dims[rnk - 1].n / 2 + 1;
cannam@167 108 for (i = rnk - 1; i > 0; --i) {
cannam@167 109 sz->dims[i - 1].is = sz->dims[i - 1].os =
cannam@167 110 sz->dims[i].is * sz->dims[i].n;
cannam@167 111 sz->dims[i - 1].n = p->sz->dims[i - 1].n;
cannam@167 112 }
cannam@167 113 sz->dims[rnk - 1].n = p->sz->dims[rnk - 1].n;
cannam@167 114
cannam@167 115 cld = X(mkplan_d)(plnr,
cannam@167 116 X(mkproblem_rdft2_d)(sz,
cannam@167 117 X(mktensor_1d)(p->vn,ivs,ovs),
cannam@167 118 r0, r1, cr, ci, p->kind));
cannam@167 119 }
cannam@167 120 else { /* idle process: make nop plan */
cannam@167 121 cld = X(mkplan_d)(plnr,
cannam@167 122 X(mkproblem_rdft2_d)(X(mktensor_0d)(),
cannam@167 123 X(mktensor_1d)(0,0,0),
cannam@167 124 cr, ci, cr, ci, HC2R));
cannam@167 125 }
cannam@167 126 if (XM(any_true)(!cld, p->comm)) return (plan *) 0;
cannam@167 127
cannam@167 128 pln = MKPLAN_MPI_RDFT2(P, &padt, p->kind == R2HC ? apply_r2c : apply_c2r);
cannam@167 129 pln->cld = cld;
cannam@167 130 pln->vn = p->vn;
cannam@167 131 X(ops_cpy)(&cld->ops, &pln->super.super.ops);
cannam@167 132 return &(pln->super.super);
cannam@167 133 }
cannam@167 134
cannam@167 135 static solver *mksolver(void)
cannam@167 136 {
cannam@167 137 static const solver_adt sadt = { PROBLEM_MPI_RDFT2, mkplan, 0 };
cannam@167 138 return MKSOLVER(solver, &sadt);
cannam@167 139 }
cannam@167 140
cannam@167 141 void XM(rdft2_serial_register)(planner *p)
cannam@167 142 {
cannam@167 143 REGISTER_SOLVER(p, mksolver());
cannam@167 144 }