[143301] trunk/dports/math/fftw-3
dstrubbe at macports.org
dstrubbe at macports.org
Sat Dec 12 09:24:27 PST 2015
Revision: 143301
https://trac.macports.org/changeset/143301
Author: dstrubbe at macports.org
Date: 2015-12-09 15:58:28 -0800 (Wed, 09 Dec 2015)
Log Message:
-----------
fftw-3: Ticket #49373, with maintainer approval. Add new variant with patches that are recommended for use as a dependency for pfft, a new port I added. Also, add configure arg to allow test phase to work with mpi variant.
Modified Paths:
--------------
trunk/dports/math/fftw-3/Portfile
Added Paths:
-----------
trunk/dports/math/fftw-3/files/patch-pfft.diff
Modified: trunk/dports/math/fftw-3/Portfile
===================================================================
--- trunk/dports/math/fftw-3/Portfile 2015-12-09 23:54:05 UTC (rev 143300)
+++ trunk/dports/math/fftw-3/Portfile 2015-12-09 23:58:28 UTC (rev 143301)
@@ -50,6 +50,21 @@
yosemite-libtool.patch \
leopard-no-memalign.patch
+variant pfft_patches description {Apply patches recommended for use as dependency of pfft port} {
+ if {![mpi_variant_isset]} {
+ ui_warn "Variant +pfft_patches has no effect without setting an MPI variant."
+ }
+
+ # Cut from scripts at https://www-user.tu-chemnitz.de/~potts/workgroup/pippig/software.php.en#fftwinstall,
+ #Important: Within these scripts we apply the following patches that have been submitted to FFTW but are not yet included in FFTW-3.3.4:
+ # We add two more global transposition algorithms to the planner.
+ # We patch file mpi/transpose-pairwise.c in order to fix a double free bug.
+ patchfiles-append patch-pfft.diff
+
+ # mpi/Makefile.am is modified, and effects are complicated to emulate with a patch to mpi/Makefile.in
+ use_autoreconf yes
+}
+
# don't change configure.cc, etc. since we'll take care of that manually with
# MPICC env var
mpi.setup
@@ -210,7 +225,8 @@
pre-configure {
if {[mpi_variant_isset]} {
- configure.env MPICC=${mpi.cc}
+ # MPIRUN is needed for test phase
+ configure.env MPICC=${mpi.cc} MPIRUN=${mpi.exec}
configure.args-append --enable-mpi
}
}
Added: trunk/dports/math/fftw-3/files/patch-pfft.diff
===================================================================
--- trunk/dports/math/fftw-3/files/patch-pfft.diff (rev 0)
+++ trunk/dports/math/fftw-3/files/patch-pfft.diff 2015-12-09 23:58:28 UTC (rev 143301)
@@ -0,0 +1,865 @@
+--- mpi/conf.c 2014-03-04 19:41:03.000000000 +0100
++++ mpi/conf.c 2015-09-05 05:53:19.085516467 +0200
+@@ -29,6 +29,8 @@ static const solvtab s =
+ SOLVTAB(XM(transpose_pairwise_register)),
+ SOLVTAB(XM(transpose_alltoall_register)),
+ SOLVTAB(XM(transpose_recurse_register)),
++ SOLVTAB(XM(transpose_pairwise_transposed_register)),
++ SOLVTAB(XM(transpose_alltoall_transposed_register)),
+ SOLVTAB(XM(dft_rank_geq2_register)),
+ SOLVTAB(XM(dft_rank_geq2_transposed_register)),
+ SOLVTAB(XM(dft_serial_register)),
+
+--- mpi/Makefile.am 2013-03-18 13:10:45.000000000 +0100
++++ mpi/Makefile.am 2015-09-05 05:53:19.084516437 +0200
+@@ -16,6 +16,7 @@ BUILT_SOURCES = fftw3-mpi.f03.in fftw3-m
+ CLEANFILES = fftw3-mpi.f03 fftw3l-mpi.f03
+
+ TRANSPOSE_SRC = transpose-alltoall.c transpose-pairwise.c transpose-recurse.c transpose-problem.c transpose-solve.c mpi-transpose.h
++TRANSPOSE_SRC += transpose-alltoall-transposed.c transpose-pairwise-transposed.c
+ DFT_SRC = dft-serial.c dft-rank-geq2.c dft-rank-geq2-transposed.c dft-rank1.c dft-rank1-bigvec.c dft-problem.c dft-solve.c mpi-dft.h
+ RDFT_SRC = rdft-serial.c rdft-rank-geq2.c rdft-rank-geq2-transposed.c rdft-rank1-bigvec.c rdft-problem.c rdft-solve.c mpi-rdft.h
+ RDFT2_SRC = rdft2-serial.c rdft2-rank-geq2.c rdft2-rank-geq2-transposed.c rdft2-problem.c rdft2-solve.c mpi-rdft2.h
+
+--- mpi/mpi-transpose.h 2014-03-04 19:41:03.000000000 +0100
++++ mpi/mpi-transpose.h 2015-09-05 05:53:19.085516467 +0200
+@@ -59,3 +59,5 @@ int XM(mkplans_posttranspose)(const prob
+ void XM(transpose_pairwise_register)(planner *p);
+ void XM(transpose_alltoall_register)(planner *p);
+ void XM(transpose_recurse_register)(planner *p);
++void XM(transpose_pairwise_transposed_register)(planner *p);
++void XM(transpose_alltoall_transposed_register)(planner *p);
+
+--- mpi/transpose-alltoall-transposed.c 1970-01-01 01:00:00.000000000 +0100
++++ mpi/transpose-alltoall-transposed.c 2015-09-05 05:53:19.085516467 +0200
+@@ -0,0 +1,280 @@
++/*
++ * Copyright (c) 2003, 2007-11 Matteo Frigo
++ * Copyright (c) 2003, 2007-11 Massachusetts Institute of Technology
++ * Copyright (c) 2012 Michael Pippig
++ *
++ * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
++ *
++ */
++
++/* plans for distributed out-of-place transpose using MPI_Alltoall,
++ and which destroy the input array (also if TRANSPOSED_IN is used) */
++
++#include "mpi-transpose.h"
++#include <string.h>
++
++typedef struct {
++ solver super;
++ int copy_transposed_out; /* whether to copy the output for TRANSPOSED_OUT,
++ which makes the first transpose out-of-place
++ but costs an extra copy and requires us
++ to destroy the input */
++} S;
++
++typedef struct {
++ plan_mpi_transpose super;
++
++ plan *cld1, *cld2, *cld2rest, *cld3;
++
++ MPI_Comm comm;
++ int *send_block_sizes, *send_block_offsets;
++ int *recv_block_sizes, *recv_block_offsets;
++
++ INT rest_Ioff, rest_Ooff;
++
++ int equal_blocks;
++} P;
++
++/* transpose locally to get contiguous chunks
++ this may take two transposes if the block sizes are unequal
++ (3 subplans, two of which operate on disjoint data) */
++static void apply_pretranspose(
++ const P *ego, R *I, R *O
++ )
++{
++ plan_rdft *cld2, *cld2rest, *cld3;
++
++ cld3 = (plan_rdft *) ego->cld3;
++ if (cld3)
++ cld3->apply(ego->cld3, O, O);
++ /* else TRANSPOSED_IN is true and user wants I transposed */
++
++ cld2 = (plan_rdft *) ego->cld2;
++ cld2->apply(ego->cld2, I, O);
++ cld2rest = (plan_rdft *) ego->cld2rest;
++ if (cld2rest) {
++ cld2rest->apply(ego->cld2rest,
++ I + ego->rest_Ioff, O + ego->rest_Ooff);
++ }
++}
++
++static void apply(const plan *ego_, R *I, R *O)
++{
++ const P *ego = (const P *) ego_;
++ plan_rdft *cld1 = (plan_rdft *) ego->cld1;
++
++ if (cld1) {
++ /* transpose locally to get contiguous chunks */
++ apply_pretranspose(ego, I, O);
++
++ /* transpose chunks globally */
++ if (ego->equal_blocks)
++ MPI_Alltoall(O, ego->send_block_sizes[0], FFTW_MPI_TYPE,
++ I, ego->recv_block_sizes[0], FFTW_MPI_TYPE,
++ ego->comm);
++ else
++ MPI_Alltoallv(O, ego->send_block_sizes, ego->send_block_offsets,
++ FFTW_MPI_TYPE,
++ I, ego->recv_block_sizes, ego->recv_block_offsets,
++ FFTW_MPI_TYPE,
++ ego->comm);
++
++ /* transpose locally to get non-transposed output */
++ cld1->apply(ego->cld1, I, O);
++ } /* else TRANSPOSED_OUT is true and user wants O transposed */
++ else {
++ /* transpose locally to get contiguous chunks */
++ apply_pretranspose(ego, I, I);
++
++ /* transpose chunks globally */
++ if (ego->equal_blocks)
++ MPI_Alltoall(I, ego->send_block_sizes[0], FFTW_MPI_TYPE,
++ O, ego->recv_block_sizes[0], FFTW_MPI_TYPE,
++ ego->comm);
++ else
++ MPI_Alltoallv(I, ego->send_block_sizes, ego->send_block_offsets,
++ FFTW_MPI_TYPE,
++ O, ego->recv_block_sizes, ego->recv_block_offsets,
++ FFTW_MPI_TYPE,
++ ego->comm);
++ }
++}
++
++static int applicable(const S *ego, const problem *p_,
++ const planner *plnr)
++{
++ /* in contrast to transpose-alltoall this algorithm can not preserve the input,
++ * since we need at least one transpose before the (out-of-place) Alltoall */
++ const problem_mpi_transpose *p = (const problem_mpi_transpose *) p_;
++ return (1
++ && p->I != p->O
++ && (!NO_DESTROY_INPUTP(plnr))
++ && ((p->flags & TRANSPOSED_OUT) || !ego->copy_transposed_out)
++ && ONLY_TRANSPOSEDP(p->flags)
++ );
++}
++
++static void awake(plan *ego_, enum wakefulness wakefulness)
++{
++ P *ego = (P *) ego_;
++ X(plan_awake)(ego->cld1, wakefulness);
++ X(plan_awake)(ego->cld2, wakefulness);
++ X(plan_awake)(ego->cld2rest, wakefulness);
++ X(plan_awake)(ego->cld3, wakefulness);
++}
++
++static void destroy(plan *ego_)
++{
++ P *ego = (P *) ego_;
++ X(ifree0)(ego->send_block_sizes);
++ MPI_Comm_free(&ego->comm);
++ X(plan_destroy_internal)(ego->cld3);
++ X(plan_destroy_internal)(ego->cld2rest);
++ X(plan_destroy_internal)(ego->cld2);
++ X(plan_destroy_internal)(ego->cld1);
++}
++
++static void print(const plan *ego_, printer *p)
++{
++ const P *ego = (const P *) ego_;
++ p->print(p, "(mpi-transpose-alltoall-transposed%s%(%p%)%(%p%)%(%p%)%(%p%))",
++ ego->equal_blocks ? "/e" : "",
++ ego->cld1, ego->cld2, ego->cld2rest, ego->cld3);
++}
++
++static plan *mkplan(const solver *ego_, const problem *p_, planner *plnr)
++{
++ const S *ego = (const S *) ego_;
++ const problem_mpi_transpose *p;
++ P *pln;
++ plan *cld1 = 0, *cld2 = 0, *cld2rest = 0, *cld3 = 0;
++ INT b, bt, vn, rest_Ioff, rest_Ooff;
++ R *O;
++ int *sbs, *sbo, *rbs, *rbo;
++ int pe, my_pe, n_pes;
++ int equal_blocks = 1;
++ static const plan_adt padt = {
++ XM(transpose_solve), awake, print, destroy
++ };
++
++ if (!applicable(ego, p_, plnr))
++ return (plan *) 0;
++
++ p = (const problem_mpi_transpose *) p_;
++ vn = p->vn;
++
++ MPI_Comm_rank(p->comm, &my_pe);
++ MPI_Comm_size(p->comm, &n_pes);
++
++ bt = XM(block)(p->ny, p->tblock, my_pe);
++
++ if (p->flags & TRANSPOSED_OUT) { /* O stays transposed */
++ if (ego->copy_transposed_out) {
++ cld1 = X(mkplan_f_d)(plnr,
++ X(mkproblem_rdft_0_d)(X(mktensor_1d)
++ (bt * p->nx * vn, 1, 1),
++ p->I, O = p->O),
++ 0, 0, NO_SLOW);
++ if (XM(any_true)(!cld1, p->comm)) goto nada;
++ }
++ else /* first transpose is in-place */
++ O = p->I;
++ }
++ else { /* transpose nx x bt x vn -> bt x nx x vn */
++ cld1 = X(mkplan_f_d)(plnr,
++ X(mkproblem_rdft_0_d)(X(mktensor_3d)
++ (bt, vn, p->nx * vn,
++ p->nx, bt * vn, vn,
++ vn, 1, 1),
++ p->I, O = p->O),
++ 0, 0, NO_SLOW);
++ if (XM(any_true)(!cld1, p->comm)) goto nada;
++ }
++
++ if (XM(any_true)(!XM(mkplans_pretranspose)(p, plnr, p->I, O, my_pe,
++ &cld2, &cld2rest, &cld3,
++ &rest_Ioff, &rest_Ooff),
++ p->comm)) goto nada;
++
++
++ pln = MKPLAN_MPI_TRANSPOSE(P, &padt, apply);
++
++ pln->cld1 = cld1;
++ pln->cld2 = cld2;
++ pln->cld2rest = cld2rest;
++ pln->rest_Ioff = rest_Ioff;
++ pln->rest_Ooff = rest_Ooff;
++ pln->cld3 = cld3;
++
++ MPI_Comm_dup(p->comm, &pln->comm);
++
++ /* Compute sizes/offsets of blocks to send for all-to-all command. */
++ sbs = (int *) MALLOC(4 * n_pes * sizeof(int), PLANS);
++ sbo = sbs + n_pes;
++ rbs = sbo + n_pes;
++ rbo = rbs + n_pes;
++ b = XM(block)(p->nx, p->block, my_pe);
++ bt = XM(block)(p->ny, p->tblock, my_pe);
++ for (pe = 0; pe < n_pes; ++pe) {
++ INT db, dbt; /* destination block sizes */
++ db = XM(block)(p->nx, p->block, pe);
++ dbt = XM(block)(p->ny, p->tblock, pe);
++ if (db != p->block || dbt != p->tblock)
++ equal_blocks = 0;
++
++ /* MPI requires type "int" here; apparently it
++ has no 64-bit API? Grrr. */
++ sbs[pe] = (int) (b * dbt * vn);
++ sbo[pe] = (int) (pe * (b * p->tblock) * vn);
++ rbs[pe] = (int) (db * bt * vn);
++ rbo[pe] = (int) (pe * (p->block * bt) * vn);
++ }
++ pln->send_block_sizes = sbs;
++ pln->send_block_offsets = sbo;
++ pln->recv_block_sizes = rbs;
++ pln->recv_block_offsets = rbo;
++ pln->equal_blocks = equal_blocks;
++
++ X(ops_zero)(&pln->super.super.ops);
++ if (cld1) X(ops_add2)(&cld1->ops, &pln->super.super.ops);
++ if (cld2) X(ops_add2)(&cld2->ops, &pln->super.super.ops);
++ if (cld2rest) X(ops_add2)(&cld2rest->ops, &pln->super.super.ops);
++ if (cld3) X(ops_add2)(&cld3->ops, &pln->super.super.ops);
++ /* FIXME: should MPI operations be counted in "other" somehow? */
++
++ return &(pln->super.super);
++
++ nada:
++ X(plan_destroy_internal)(cld3);
++ X(plan_destroy_internal)(cld2rest);
++ X(plan_destroy_internal)(cld2);
++ X(plan_destroy_internal)(cld1);
++ return (plan *) 0;
++}
++
++static solver *mksolver(int copy_transposed_out)
++{
++ static const solver_adt sadt = { PROBLEM_MPI_TRANSPOSE, mkplan, 0 };
++ S *slv = MKSOLVER(S, &sadt);
++ slv->copy_transposed_out = copy_transposed_out;
++ return &(slv->super);
++}
++
++void XM(transpose_alltoall_transposed_register)(planner *p)
++{
++ int cto;
++ for (cto = 0; cto <= 1; ++cto)
++ REGISTER_SOLVER(p, mksolver(cto));
++}
+
+--- mpi/transpose-pairwise.c 2014-03-04 19:41:03.000000000 +0100
++++ mpi/transpose-pairwise.c 2015-09-05 06:00:05.715433709 +0200
+@@ -53,7 +53,6 @@ static void transpose_chunks(int *sched,
+ {
+ if (sched) {
+ int i;
+- MPI_Status status;
+
+ /* TODO: explore non-synchronous send/recv? */
+
+@@ -74,7 +73,7 @@ static void transpose_chunks(int *sched,
+ O + rbo[pe], (int) (rbs[pe]),
+ FFTW_MPI_TYPE,
+ pe, (pe * n_pes + my_pe) & 0xffff,
+- comm, &status);
++ comm, MPI_STATUS_IGNORE);
+ }
+ }
+
+@@ -92,7 +91,7 @@ static void transpose_chunks(int *sched,
+ O + rbo[pe], (int) (rbs[pe]),
+ FFTW_MPI_TYPE,
+ pe, (pe * n_pes + my_pe) & 0xffff,
+- comm, &status);
++ comm, MPI_STATUS_IGNORE);
+ }
+ }
+ }
+@@ -350,6 +349,7 @@ nada:
+ X(plan_destroy_internal)(*cld3);
+ X(plan_destroy_internal)(*cld2rest);
+ X(plan_destroy_internal)(*cld2);
++ *cld2 = *cld2rest = *cld3 = NULL;
+ return 0;
+ }
+
+--- mpi/transpose-pairwise-transposed.c 1970-01-01 01:00:00.000000000 +0100
++++ mpi/transpose-pairwise-transposed.c 2015-09-05 06:00:07.280481042 +0200
+@@ -0,0 +1,510 @@
++/*
++ * Copyright (c) 2003, 2007-11 Matteo Frigo
++ * Copyright (c) 2003, 2007-11 Massachusetts Institute of Technology
++ * Copyright (c) 2012 Michael Pippig
++ *
++ * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
++ *
++ */
++
++/* Distributed transposes using a sequence of carefully scheduled
++ pairwise exchanges. This has the advantage that it can be done
++ in-place, or out-of-place while preserving the input, using buffer
++ space proportional to the local size divided by the number of
++ processes (i.e. to the total array size divided by the number of
++ processes squared). */
++
++#include "mpi-transpose.h"
++#include <string.h>
++
++typedef struct {
++ solver super;
++ int preserve_input; /* preserve input even if DESTROY_INPUT was passed */
++} S;
++
++typedef struct {
++ plan_mpi_transpose super;
++
++ plan *cld1, *cld2, *cld2rest, *cld3;
++ INT rest_Ioff, rest_Ooff;
++
++ int n_pes, my_pe, *sched;
++ INT *send_block_sizes, *send_block_offsets;
++ INT *recv_block_sizes, *recv_block_offsets;
++ MPI_Comm comm;
++ int preserve_input;
++} P;
++
++static void transpose_chunks(int *sched, int n_pes, int my_pe,
++ INT *sbs, INT *sbo, INT *rbs, INT *rbo,
++ MPI_Comm comm,
++ R *I, R *O)
++{
++ if (sched) {
++ int i;
++
++ /* TODO: explore non-synchronous send/recv? */
++
++ if (I == O) {
++ R *buf = (R*) MALLOC(sizeof(R) * sbs[0], BUFFERS);
++
++ for (i = 0; i < n_pes; ++i) {
++ int pe = sched[i];
++ if (my_pe == pe) {
++ if (rbo[pe] != sbo[pe])
++ memmove(O + rbo[pe], O + sbo[pe],
++ sbs[pe] * sizeof(R));
++ }
++ else {
++ memcpy(buf, O + sbo[pe], sbs[pe] * sizeof(R));
++ MPI_Sendrecv(buf, (int) (sbs[pe]), FFTW_MPI_TYPE,
++ pe, (my_pe * n_pes + pe) & 0xffff,
++ O + rbo[pe], (int) (rbs[pe]),
++ FFTW_MPI_TYPE,
++ pe, (pe * n_pes + my_pe) & 0xffff,
++ comm, MPI_STATUS_IGNORE);
++ }
++ }
++
++ X(ifree)(buf);
++ }
++ else { /* I != O */
++ for (i = 0; i < n_pes; ++i) {
++ int pe = sched[i];
++ if (my_pe == pe)
++ memcpy(O + rbo[pe], I + sbo[pe], sbs[pe] * sizeof(R));
++ else
++ MPI_Sendrecv(I + sbo[pe], (int) (sbs[pe]),
++ FFTW_MPI_TYPE,
++ pe, (my_pe * n_pes + pe) & 0xffff,
++ O + rbo[pe], (int) (rbs[pe]),
++ FFTW_MPI_TYPE,
++ pe, (pe * n_pes + my_pe) & 0xffff,
++ comm, MPI_STATUS_IGNORE);
++ }
++ }
++ }
++}
++
++/* transpose locally to get contiguous chunks
++ this may take two transposes if the block sizes are unequal
++ (3 subplans, two of which operate on disjoint data) */
++static void apply_pretranspose(
++ const P *ego, R *I, R *O
++ )
++{
++ plan_rdft *cld2, *cld2rest, *cld3;
++
++ cld3 = (plan_rdft *) ego->cld3;
++ if (cld3)
++ cld3->apply(ego->cld3, O, O);
++ /* else TRANSPOSED_IN is true and user wants I transposed */
++
++ cld2 = (plan_rdft *) ego->cld2;
++ cld2->apply(ego->cld2, I, O);
++ cld2rest = (plan_rdft *) ego->cld2rest;
++ if (cld2rest) {
++ cld2rest->apply(ego->cld2rest,
++ I + ego->rest_Ioff, O + ego->rest_Ooff);
++ }
++}
++
++static void apply(const plan *ego_, R *I, R *O)
++{
++ const P *ego = (const P *) ego_;
++ plan_rdft *cld1 = (plan_rdft *) ego->cld1;
++
++ if (cld1) {
++ /* transpose locally to get contiguous chunks */
++ apply_pretranspose(ego, I, O);
++
++ if(ego->preserve_input) I = O;
++
++ /* transpose chunks globally */
++ transpose_chunks(ego->sched, ego->n_pes, ego->my_pe,
++ ego->send_block_sizes, ego->send_block_offsets,
++ ego->recv_block_sizes, ego->recv_block_offsets,
++ ego->comm, O, I);
++
++ /* transpose locally to get non-transposed output */
++ cld1->apply(ego->cld1, I, O);
++ } /* else TRANSPOSED_OUT is true and user wants O transposed */
++ else if (ego->preserve_input) {
++ /* transpose locally to get contiguous chunks */
++ apply_pretranspose(ego, I, O);
++
++ /* transpose chunks globally */
++ transpose_chunks(ego->sched, ego->n_pes, ego->my_pe,
++ ego->send_block_sizes, ego->send_block_offsets,
++ ego->recv_block_sizes, ego->recv_block_offsets,
++ ego->comm, O, O);
++ }
++ else {
++ /* transpose locally to get contiguous chunks */
++ apply_pretranspose(ego, I, I);
++
++ /* transpose chunks globally */
++ transpose_chunks(ego->sched, ego->n_pes, ego->my_pe,
++ ego->send_block_sizes, ego->send_block_offsets,
++ ego->recv_block_sizes, ego->recv_block_offsets,
++ ego->comm, I, O);
++ }
++}
++
++static int applicable(const S *ego, const problem *p_,
++ const planner *plnr)
++{
++ const problem_mpi_transpose *p = (const problem_mpi_transpose *) p_;
++ /* Note: this is *not* UGLY for out-of-place, destroy-input plans;
++ the planner often prefers transpose-pairwise to transpose-alltoall,
++ at least with LAM MPI on my machine. */
++ return (1
++ && (!ego->preserve_input || (!NO_DESTROY_INPUTP(plnr)
++ && p->I != p->O))
++ && ONLY_TRANSPOSEDP(p->flags));
++}
++
++static void awake(plan *ego_, enum wakefulness wakefulness)
++{
++ P *ego = (P *) ego_;
++ X(plan_awake)(ego->cld1, wakefulness);
++ X(plan_awake)(ego->cld2, wakefulness);
++ X(plan_awake)(ego->cld2rest, wakefulness);
++ X(plan_awake)(ego->cld3, wakefulness);
++}
++
++static void destroy(plan *ego_)
++{
++ P *ego = (P *) ego_;
++ X(ifree0)(ego->sched);
++ X(ifree0)(ego->send_block_sizes);
++ MPI_Comm_free(&ego->comm);
++ X(plan_destroy_internal)(ego->cld3);
++ X(plan_destroy_internal)(ego->cld2rest);
++ X(plan_destroy_internal)(ego->cld2);
++ X(plan_destroy_internal)(ego->cld1);
++}
++
++static void print(const plan *ego_, printer *p)
++{
++ const P *ego = (const P *) ego_;
++ p->print(p, "(mpi-transpose-pairwise-transposed%s%(%p%)%(%p%)%(%p%)%(%p%))",
++ ego->preserve_input==2 ?"/p":"",
++ ego->cld1, ego->cld2, ego->cld2rest, ego->cld3);
++}
++
++/* Given a process which_pe and a number of processes npes, fills
++ the array sched[npes] with a sequence of processes to communicate
++ with for a deadlock-free, optimum-overlap all-to-all communication.
++ (All processes must call this routine to get their own schedules.)
++ The schedule can be re-ordered arbitrarily as long as all processes
++ apply the same permutation to their schedules.
++
++ The algorithm here is based upon the one described in:
++ J. A. M. Schreuder, "Constructing timetables for sport
++ competitions," Mathematical Programming Study 13, pp. 58-67 (1980).
++ In a sport competition, you have N teams and want every team to
++ play every other team in as short a time as possible (maximum overlap
++ between games). This timetabling problem is therefore identical
++ to that of an all-to-all communications problem. In our case, there
++ is one wrinkle: as part of the schedule, the process must do
++ some data transfer with itself (local data movement), analogous
++ to a requirement that each team "play itself" in addition to other
++ teams. With this wrinkle, it turns out that an optimal timetable
++ (N parallel games) can be constructed for any N, not just for even
++ N as in the original problem described by Schreuder.
++*/
++static void fill1_comm_sched(int *sched, int which_pe, int npes)
++{
++ int pe, i, n, s = 0;
++ A(which_pe >= 0 && which_pe < npes);
++ if (npes % 2 == 0) {
++ n = npes;
++ sched[s++] = which_pe;
++ }
++ else
++ n = npes + 1;
++ for (pe = 0; pe < n - 1; ++pe) {
++ if (npes % 2 == 0) {
++ if (pe == which_pe) sched[s++] = npes - 1;
++ else if (npes - 1 == which_pe) sched[s++] = pe;
++ }
++ else if (pe == which_pe) sched[s++] = pe;
++
++ if (pe != which_pe && which_pe < n - 1) {
++ i = (pe - which_pe + (n - 1)) % (n - 1);
++ if (i < n/2)
++ sched[s++] = (pe + i) % (n - 1);
++
++ i = (which_pe - pe + (n - 1)) % (n - 1);
++ if (i < n/2)
++ sched[s++] = (pe - i + (n - 1)) % (n - 1);
++ }
++ }
++ A(s == npes);
++}
++
++/* Sort the communication schedule sched for npes so that the schedule
++ on process sortpe is ascending or descending (!ascending). This is
++ necessary to allow in-place transposes when the problem does not
++ divide equally among the processes. In this case there is one
++ process where the incoming blocks are bigger/smaller than the
++ outgoing blocks and thus have to be received in
++ descending/ascending order, respectively, to avoid overwriting data
++ before it is sent. */
++static void sort1_comm_sched(int *sched, int npes, int sortpe, int ascending)
++{
++ int *sortsched, i;
++ sortsched = (int *) MALLOC(npes * sizeof(int) * 2, OTHER);
++ fill1_comm_sched(sortsched, sortpe, npes);
++ if (ascending)
++ for (i = 0; i < npes; ++i)
++ sortsched[npes + sortsched[i]] = sched[i];
++ else
++ for (i = 0; i < npes; ++i)
++ sortsched[2*npes - 1 - sortsched[i]] = sched[i];
++ for (i = 0; i < npes; ++i)
++ sched[i] = sortsched[npes + i];
++ X(ifree)(sortsched);
++}
++
++/* make the plans to do the pre-MPI transpositions (shared with
++ transpose-alltoall-transposed) */
++int XM(mkplans_pretranspose)(const problem_mpi_transpose *p, planner *plnr,
++ R *I, R *O, int my_pe,
++ plan **cld2, plan **cld2rest, plan **cld3,
++ INT *rest_Ioff, INT *rest_Ooff)
++{
++ INT vn = p->vn;
++ INT b = XM(block)(p->nx, p->block, my_pe);
++ INT bt = p->tblock;
++ INT nyb = p->ny / bt; /* number of equal-sized blocks */
++ INT nyr = p->ny - nyb * bt; /* leftover rows after equal blocks */
++
++ *cld2 = *cld2rest = *cld3 = NULL;
++ *rest_Ioff = *rest_Ooff = 0;
++
++ if (!(p->flags & TRANSPOSED_IN) && (nyr == 0 || I != O)) {
++ INT ny = p->ny * vn;
++ bt *= vn;
++ *cld2 = X(mkplan_f_d)(plnr,
++ X(mkproblem_rdft_0_d)(X(mktensor_3d)
++ (nyb, bt, b * bt,
++ b, ny, bt,
++ bt, 1, 1),
++ I, O),
++ 0, 0, NO_SLOW);
++ if (!*cld2) goto nada;
++
++ if (nyr > 0) {
++ *rest_Ioff = nyb * bt;
++ *rest_Ooff = nyb * b * bt;
++ bt = nyr * vn;
++ *cld2rest = X(mkplan_f_d)(plnr,
++ X(mkproblem_rdft_0_d)(X(mktensor_2d)
++ (b, ny, bt,
++ bt, 1, 1),
++ I + *rest_Ioff,
++ O + *rest_Ooff),
++ 0, 0, NO_SLOW);
++ if (!*cld2rest) goto nada;
++ }
++ }
++ else {
++ *cld2 = X(mkplan_f_d)(plnr,
++ X(mkproblem_rdft_0_d)(
++ X(mktensor_4d)
++ (nyb, b * bt * vn, b * bt * vn,
++ b, vn, bt * vn,
++ bt, b * vn, vn,
++ vn, 1, 1),
++ I, O),
++ 0, 0, NO_SLOW);
++ if (!*cld2) goto nada;
++
++ *rest_Ioff = *rest_Ooff = nyb * bt * b * vn;
++ *cld2rest = X(mkplan_f_d)(plnr,
++ X(mkproblem_rdft_0_d)(
++ X(mktensor_3d)
++ (b, vn, nyr * vn,
++ nyr, b * vn, vn,
++ vn, 1, 1),
++ I + *rest_Ioff, O + *rest_Ooff),
++ 0, 0, NO_SLOW);
++ if (!*cld2rest) goto nada;
++
++ if (!(p->flags & TRANSPOSED_IN)) {
++ *cld3 = X(mkplan_f_d)(plnr,
++ X(mkproblem_rdft_0_d)(
++ X(mktensor_3d)
++ (p->ny, vn, b * vn,
++ b, p->ny * vn, vn,
++ vn, 1, 1),
++ I, I),
++ 0, 0, NO_SLOW);
++ if (!*cld3) goto nada;
++ }
++ }
++
++ return 1;
++
++nada:
++ X(plan_destroy_internal)(*cld3);
++ X(plan_destroy_internal)(*cld2rest);
++ X(plan_destroy_internal)(*cld2);
++ *cld2 = *cld2rest = *cld3 = NULL;
++ return 0;
++}
++
++static plan *mkplan(const solver *ego_, const problem *p_, planner *plnr)
++{
++ const S *ego = (const S *) ego_;
++ const problem_mpi_transpose *p;
++ P *pln;
++ plan *cld1 = 0, *cld2 = 0, *cld2rest = 0, *cld3 = 0;
++ INT b, bt, vn, rest_Ioff, rest_Ooff;
++ INT *sbs, *sbo, *rbs, *rbo;
++ int pe, my_pe, n_pes, sort_pe = -1, ascending = 1;
++ R *I, *O;
++ static const plan_adt padt = {
++ XM(transpose_solve), awake, print, destroy
++ };
++
++ UNUSED(ego);
++
++ if (!applicable(ego, p_, plnr))
++ return (plan *) 0;
++
++ p = (const problem_mpi_transpose *) p_;
++ vn = p->vn;
++ I = p->I; O = p->O;
++
++ MPI_Comm_rank(p->comm, &my_pe);
++ MPI_Comm_size(p->comm, &n_pes);
++
++ bt = XM(block)(p->ny, p->tblock, my_pe);
++
++
++ if (ego->preserve_input || NO_DESTROY_INPUTP(plnr)) I = p->O;
++
++ if (!(p->flags & TRANSPOSED_OUT)) { /* nx x bt x vn -> bt x nx x vn */
++ cld1 = X(mkplan_f_d)(plnr,
++ X(mkproblem_rdft_0_d)(X(mktensor_3d)
++ (bt, vn, p->nx * vn,
++ p->nx, bt * vn, vn,
++ vn, 1, 1),
++ I, O = p->O),
++ 0, 0, NO_SLOW);
++ if (XM(any_true)(!cld1, p->comm)) goto nada;
++
++ }
++ else {
++ if (ego->preserve_input || NO_DESTROY_INPUTP(plnr))
++ O = p->O;
++ else
++ O = p->I;
++ }
++
++ if (XM(any_true)(!XM(mkplans_pretranspose)(p, plnr, p->I, O, my_pe,
++ &cld2, &cld2rest, &cld3,
++ &rest_Ioff, &rest_Ooff),
++ p->comm)) goto nada;
++
++ pln = MKPLAN_MPI_TRANSPOSE(P, &padt, apply);
++
++ pln->cld1 = cld1;
++ pln->cld2 = cld2;
++ pln->cld2rest = cld2rest;
++ pln->rest_Ioff = rest_Ioff;
++ pln->rest_Ooff = rest_Ooff;
++ pln->cld3 = cld3;
++ pln->preserve_input = ego->preserve_input ? 2 : NO_DESTROY_INPUTP(plnr);
++
++ MPI_Comm_dup(p->comm, &pln->comm);
++
++ n_pes = (int) X(imax)(XM(num_blocks)(p->nx, p->block),
++ XM(num_blocks)(p->ny, p->tblock));
++
++ /* Compute sizes/offsets of blocks to exchange between processors */
++ sbs = (INT *) MALLOC(4 * n_pes * sizeof(INT), PLANS);
++ sbo = sbs + n_pes;
++ rbs = sbo + n_pes;
++ rbo = rbs + n_pes;
++ b = XM(block)(p->nx, p->block, my_pe);
++ bt = XM(block)(p->ny, p->tblock, my_pe);
++ for (pe = 0; pe < n_pes; ++pe) {
++ INT db, dbt; /* destination block sizes */
++ db = XM(block)(p->nx, p->block, pe);
++ dbt = XM(block)(p->ny, p->tblock, pe);
++
++ sbs[pe] = b * dbt * vn;
++ sbo[pe] = pe * (b * p->tblock) * vn;
++ rbs[pe] = db * bt * vn;
++ rbo[pe] = pe * (p->block * bt) * vn;
++
++ if (db * dbt > 0 && db * p->tblock != p->block * dbt) {
++ A(sort_pe == -1); /* only one process should need sorting */
++ sort_pe = pe;
++ ascending = db * p->tblock > p->block * dbt;
++ }
++ }
++ pln->n_pes = n_pes;
++ pln->my_pe = my_pe;
++ pln->send_block_sizes = sbs;
++ pln->send_block_offsets = sbo;
++ pln->recv_block_sizes = rbs;
++ pln->recv_block_offsets = rbo;
++
++ if (my_pe >= n_pes) {
++ pln->sched = 0; /* this process is not doing anything */
++ }
++ else {
++ pln->sched = (int *) MALLOC(n_pes * sizeof(int), PLANS);
++ fill1_comm_sched(pln->sched, my_pe, n_pes);
++ if (sort_pe >= 0)
++ sort1_comm_sched(pln->sched, n_pes, sort_pe, ascending);
++ }
++
++ X(ops_zero)(&pln->super.super.ops);
++ if (cld1) X(ops_add2)(&cld1->ops, &pln->super.super.ops);
++ if (cld2) X(ops_add2)(&cld2->ops, &pln->super.super.ops);
++ if (cld2rest) X(ops_add2)(&cld2rest->ops, &pln->super.super.ops);
++ if (cld3) X(ops_add2)(&cld3->ops, &pln->super.super.ops);
++ /* FIXME: should MPI operations be counted in "other" somehow? */
++
++ return &(pln->super.super);
++
++ nada:
++ X(plan_destroy_internal)(cld3);
++ X(plan_destroy_internal)(cld2rest);
++ X(plan_destroy_internal)(cld2);
++ X(plan_destroy_internal)(cld1);
++ return (plan *) 0;
++}
++
++static solver *mksolver(int preserve_input)
++{
++ static const solver_adt sadt = { PROBLEM_MPI_TRANSPOSE, mkplan, 0 };
++ S *slv = MKSOLVER(S, &sadt);
++ slv->preserve_input = preserve_input;
++ return &(slv->super);
++}
++
++void XM(transpose_pairwise_transposed_register)(planner *p)
++{
++ int preserve_input;
++ for (preserve_input = 0; preserve_input <= 1; ++preserve_input)
++ REGISTER_SOLVER(p, mksolver(preserve_input));
++}
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