mirror of
https://github.com/tildearrow/furnace.git
synced 2024-12-04 18:27:25 +00:00
307 lines
9 KiB
C
307 lines
9 KiB
C
/*
|
|
* Copyright (c) 2003, 2007-14 Matteo Frigo
|
|
* Copyright (c) 2003, 2007-14 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*
|
|
*/
|
|
|
|
|
|
#include "verify.h"
|
|
|
|
/* copy real A into real B, using output stride of A and input stride of B */
|
|
typedef struct {
|
|
dotens2_closure k;
|
|
R *ra;
|
|
R *rb;
|
|
} cpyr_closure;
|
|
|
|
static void cpyr0(dotens2_closure *k_,
|
|
int indxa, int ondxa, int indxb, int ondxb)
|
|
{
|
|
cpyr_closure *k = (cpyr_closure *)k_;
|
|
k->rb[indxb] = k->ra[ondxa];
|
|
UNUSED(indxa); UNUSED(ondxb);
|
|
}
|
|
|
|
static void cpyr(R *ra, const bench_tensor *sza,
|
|
R *rb, const bench_tensor *szb)
|
|
{
|
|
cpyr_closure k;
|
|
k.k.apply = cpyr0;
|
|
k.ra = ra; k.rb = rb;
|
|
bench_dotens2(sza, szb, &k.k);
|
|
}
|
|
|
|
/* copy unpacked halfcomplex A[n] into packed-complex B[n], using output stride
|
|
of A and input stride of B. Only copies non-redundant half; other
|
|
half must be copied via mkhermitian. */
|
|
typedef struct {
|
|
dotens2_closure k;
|
|
int n;
|
|
int as;
|
|
int scalea;
|
|
R *ra, *ia;
|
|
R *rb, *ib;
|
|
} cpyhc2_closure;
|
|
|
|
static void cpyhc20(dotens2_closure *k_,
|
|
int indxa, int ondxa, int indxb, int ondxb)
|
|
{
|
|
cpyhc2_closure *k = (cpyhc2_closure *)k_;
|
|
int i, n = k->n;
|
|
int scalea = k->scalea;
|
|
int as = k->as * scalea;
|
|
R *ra = k->ra + ondxa * scalea, *ia = k->ia + ondxa * scalea;
|
|
R *rb = k->rb + indxb, *ib = k->ib + indxb;
|
|
UNUSED(indxa); UNUSED(ondxb);
|
|
|
|
for (i = 0; i < n/2 + 1; ++i) {
|
|
rb[2*i] = ra[as*i];
|
|
ib[2*i] = ia[as*i];
|
|
}
|
|
}
|
|
|
|
static void cpyhc2(R *ra, R *ia,
|
|
const bench_tensor *sza, const bench_tensor *vecsza,
|
|
int scalea,
|
|
R *rb, R *ib, const bench_tensor *szb)
|
|
{
|
|
cpyhc2_closure k;
|
|
BENCH_ASSERT(sza->rnk <= 1);
|
|
k.k.apply = cpyhc20;
|
|
k.n = tensor_sz(sza);
|
|
k.scalea = scalea;
|
|
if (!BENCH_FINITE_RNK(sza->rnk) || sza->rnk == 0)
|
|
k.as = 0;
|
|
else
|
|
k.as = sza->dims[0].os;
|
|
k.ra = ra; k.ia = ia; k.rb = rb; k.ib = ib;
|
|
bench_dotens2(vecsza, szb, &k.k);
|
|
}
|
|
|
|
/* icpyhc2 is the inverse of cpyhc2 */
|
|
|
|
static void icpyhc20(dotens2_closure *k_,
|
|
int indxa, int ondxa, int indxb, int ondxb)
|
|
{
|
|
cpyhc2_closure *k = (cpyhc2_closure *)k_;
|
|
int i, n = k->n;
|
|
int scalea = k->scalea;
|
|
int as = k->as * scalea;
|
|
R *ra = k->ra + indxa * scalea, *ia = k->ia + indxa * scalea;
|
|
R *rb = k->rb + ondxb, *ib = k->ib + ondxb;
|
|
UNUSED(ondxa); UNUSED(indxb);
|
|
|
|
for (i = 0; i < n/2 + 1; ++i) {
|
|
ra[as*i] = rb[2*i];
|
|
ia[as*i] = ib[2*i];
|
|
}
|
|
}
|
|
|
|
static void icpyhc2(R *ra, R *ia,
|
|
const bench_tensor *sza, const bench_tensor *vecsza,
|
|
int scalea,
|
|
R *rb, R *ib, const bench_tensor *szb)
|
|
{
|
|
cpyhc2_closure k;
|
|
BENCH_ASSERT(sza->rnk <= 1);
|
|
k.k.apply = icpyhc20;
|
|
k.n = tensor_sz(sza);
|
|
k.scalea = scalea;
|
|
if (!BENCH_FINITE_RNK(sza->rnk) || sza->rnk == 0)
|
|
k.as = 0;
|
|
else
|
|
k.as = sza->dims[0].is;
|
|
k.ra = ra; k.ia = ia; k.rb = rb; k.ib = ib;
|
|
bench_dotens2(vecsza, szb, &k.k);
|
|
}
|
|
|
|
typedef struct {
|
|
dofft_closure k;
|
|
bench_problem *p;
|
|
} dofft_rdft2_closure;
|
|
|
|
static void rdft2_apply(dofft_closure *k_,
|
|
bench_complex *in, bench_complex *out)
|
|
{
|
|
dofft_rdft2_closure *k = (dofft_rdft2_closure *)k_;
|
|
bench_problem *p = k->p;
|
|
bench_tensor *totalsz, *pckdsz, *totalsz_swap, *pckdsz_swap;
|
|
bench_tensor *probsz2, *totalsz2, *pckdsz2;
|
|
bench_tensor *probsz2_swap, *totalsz2_swap, *pckdsz2_swap;
|
|
bench_real *ri, *ii, *ro, *io;
|
|
int n2, totalscale;
|
|
|
|
totalsz = tensor_append(p->vecsz, p->sz);
|
|
pckdsz = verify_pack(totalsz, 2);
|
|
n2 = tensor_sz(totalsz);
|
|
if (BENCH_FINITE_RNK(p->sz->rnk) && p->sz->rnk > 0)
|
|
n2 = (n2 / p->sz->dims[p->sz->rnk - 1].n) *
|
|
(p->sz->dims[p->sz->rnk - 1].n / 2 + 1);
|
|
ri = (bench_real *) p->in;
|
|
ro = (bench_real *) p->out;
|
|
|
|
if (BENCH_FINITE_RNK(p->sz->rnk) && p->sz->rnk > 0 && n2 > 0) {
|
|
probsz2 = tensor_copy_sub(p->sz, p->sz->rnk - 1, 1);
|
|
totalsz2 = tensor_copy_sub(totalsz, 0, totalsz->rnk - 1);
|
|
pckdsz2 = tensor_copy_sub(pckdsz, 0, pckdsz->rnk - 1);
|
|
}
|
|
else {
|
|
probsz2 = mktensor(0);
|
|
totalsz2 = tensor_copy(totalsz);
|
|
pckdsz2 = tensor_copy(pckdsz);
|
|
}
|
|
|
|
totalsz_swap = tensor_copy_swapio(totalsz);
|
|
pckdsz_swap = tensor_copy_swapio(pckdsz);
|
|
totalsz2_swap = tensor_copy_swapio(totalsz2);
|
|
pckdsz2_swap = tensor_copy_swapio(pckdsz2);
|
|
probsz2_swap = tensor_copy_swapio(probsz2);
|
|
|
|
/* confusion: the stride is the distance between complex elements
|
|
when using interleaved format, but it is the distance between
|
|
real elements when using split format */
|
|
if (p->split) {
|
|
ii = p->ini ? (bench_real *) p->ini : ri + n2;
|
|
io = p->outi ? (bench_real *) p->outi : ro + n2;
|
|
totalscale = 1;
|
|
} else {
|
|
ii = p->ini ? (bench_real *) p->ini : ri + 1;
|
|
io = p->outi ? (bench_real *) p->outi : ro + 1;
|
|
totalscale = 2;
|
|
}
|
|
|
|
if (p->sign < 0) { /* R2HC */
|
|
int N, vN, i;
|
|
cpyr(&c_re(in[0]), pckdsz, ri, totalsz);
|
|
after_problem_rcopy_from(p, ri);
|
|
doit(1, p);
|
|
after_problem_hccopy_to(p, ro, io);
|
|
if (k->k.recopy_input)
|
|
cpyr(ri, totalsz_swap, &c_re(in[0]), pckdsz_swap);
|
|
cpyhc2(ro, io, probsz2, totalsz2, totalscale,
|
|
&c_re(out[0]), &c_im(out[0]), pckdsz2);
|
|
N = tensor_sz(p->sz);
|
|
vN = tensor_sz(p->vecsz);
|
|
for (i = 0; i < vN; ++i)
|
|
mkhermitian(out + i*N, p->sz->rnk, p->sz->dims, 1);
|
|
}
|
|
else { /* HC2R */
|
|
icpyhc2(ri, ii, probsz2, totalsz2, totalscale,
|
|
&c_re(in[0]), &c_im(in[0]), pckdsz2);
|
|
after_problem_hccopy_from(p, ri, ii);
|
|
doit(1, p);
|
|
after_problem_rcopy_to(p, ro);
|
|
if (k->k.recopy_input)
|
|
cpyhc2(ri, ii, probsz2_swap, totalsz2_swap, totalscale,
|
|
&c_re(in[0]), &c_im(in[0]), pckdsz2_swap);
|
|
mkreal(out, tensor_sz(pckdsz));
|
|
cpyr(ro, totalsz, &c_re(out[0]), pckdsz);
|
|
}
|
|
|
|
tensor_destroy(totalsz);
|
|
tensor_destroy(pckdsz);
|
|
tensor_destroy(totalsz_swap);
|
|
tensor_destroy(pckdsz_swap);
|
|
tensor_destroy(probsz2);
|
|
tensor_destroy(totalsz2);
|
|
tensor_destroy(pckdsz2);
|
|
tensor_destroy(probsz2_swap);
|
|
tensor_destroy(totalsz2_swap);
|
|
tensor_destroy(pckdsz2_swap);
|
|
}
|
|
|
|
void verify_rdft2(bench_problem *p, int rounds, double tol, errors *e)
|
|
{
|
|
C *inA, *inB, *inC, *outA, *outB, *outC, *tmp;
|
|
int n, vecn, N;
|
|
dofft_rdft2_closure k;
|
|
|
|
BENCH_ASSERT(p->kind == PROBLEM_REAL);
|
|
|
|
if (!BENCH_FINITE_RNK(p->sz->rnk) || !BENCH_FINITE_RNK(p->vecsz->rnk))
|
|
return; /* give up */
|
|
|
|
k.k.apply = rdft2_apply;
|
|
k.k.recopy_input = 0;
|
|
k.p = p;
|
|
|
|
if (rounds == 0)
|
|
rounds = 20; /* default value */
|
|
|
|
n = tensor_sz(p->sz);
|
|
vecn = tensor_sz(p->vecsz);
|
|
N = n * vecn;
|
|
|
|
inA = (C *) bench_malloc(N * sizeof(C));
|
|
inB = (C *) bench_malloc(N * sizeof(C));
|
|
inC = (C *) bench_malloc(N * sizeof(C));
|
|
outA = (C *) bench_malloc(N * sizeof(C));
|
|
outB = (C *) bench_malloc(N * sizeof(C));
|
|
outC = (C *) bench_malloc(N * sizeof(C));
|
|
tmp = (C *) bench_malloc(N * sizeof(C));
|
|
|
|
e->i = impulse(&k.k, n, vecn, inA, inB, inC, outA, outB, outC,
|
|
tmp, rounds, tol);
|
|
e->l = linear(&k.k, 1, N, inA, inB, inC, outA, outB, outC,
|
|
tmp, rounds, tol);
|
|
|
|
e->s = 0.0;
|
|
if (p->sign < 0)
|
|
e->s = dmax(e->s, tf_shift(&k.k, 1, p->sz, n, vecn, p->sign,
|
|
inA, inB, outA, outB,
|
|
tmp, rounds, tol, TIME_SHIFT));
|
|
else
|
|
e->s = dmax(e->s, tf_shift(&k.k, 1, p->sz, n, vecn, p->sign,
|
|
inA, inB, outA, outB,
|
|
tmp, rounds, tol, FREQ_SHIFT));
|
|
|
|
if (!p->in_place && !p->destroy_input)
|
|
preserves_input(&k.k, p->sign < 0 ? mkreal : mkhermitian1,
|
|
N, inA, inB, outB, rounds);
|
|
|
|
bench_free(tmp);
|
|
bench_free(outC);
|
|
bench_free(outB);
|
|
bench_free(outA);
|
|
bench_free(inC);
|
|
bench_free(inB);
|
|
bench_free(inA);
|
|
}
|
|
|
|
void accuracy_rdft2(bench_problem *p, int rounds, int impulse_rounds,
|
|
double t[6])
|
|
{
|
|
dofft_rdft2_closure k;
|
|
int n;
|
|
C *a, *b;
|
|
|
|
BENCH_ASSERT(p->kind == PROBLEM_REAL);
|
|
BENCH_ASSERT(p->sz->rnk == 1);
|
|
BENCH_ASSERT(p->vecsz->rnk == 0);
|
|
|
|
k.k.apply = rdft2_apply;
|
|
k.k.recopy_input = 0;
|
|
k.p = p;
|
|
n = tensor_sz(p->sz);
|
|
|
|
a = (C *) bench_malloc(n * sizeof(C));
|
|
b = (C *) bench_malloc(n * sizeof(C));
|
|
accuracy_test(&k.k, p->sign < 0 ? mkreal : mkhermitian1, p->sign,
|
|
n, a, b, rounds, impulse_rounds, t);
|
|
bench_free(b);
|
|
bench_free(a);
|
|
}
|