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cosmotool/external/sharp/libsharp/sharp_testsuite.c

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/*
* This file is part of libsharp.
*
* libsharp 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.
*
* libsharp 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 libsharp; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
/*
* libsharp is being developed at the Max-Planck-Institut fuer Astrophysik
* and financially supported by the Deutsches Zentrum fuer Luft- und Raumfahrt
* (DLR).
*/
/* \file sharp_testsuite.c
*
* Copyright (C) 2012-2013 Max-Planck-Society
* \author Martin Reinecke
*/
#include <stdio.h>
#include <string.h>
#ifdef USE_MPI
#include "mpi.h"
#include "sharp_mpi.h"
#endif
#ifdef _OPENMP
#include <omp.h>
#endif
#include "sharp.h"
#include "sharp_internal.h"
#include "sharp_geomhelpers.h"
#include "sharp_almhelpers.h"
#include "c_utils.h"
#include "sharp_announce.h"
#include "memusage.h"
#include "sharp_vecsupport.h"
typedef complex double dcmplx;
int ntasks, mytask;
static double drand (double min, double max, int *state)
{
*state = (((*state) * 1103515245) + 12345) & 0x7fffffff;
return min + (max-min)*(*state)/(0x7fffffff+1.0);
}
static void random_alm (dcmplx *alm, sharp_alm_info *helper, int spin, int cnt)
{
#pragma omp parallel
{
int mi;
#pragma omp for schedule (dynamic,100)
for (mi=0;mi<helper->nm; ++mi)
{
int m=helper->mval[mi];
int state=1234567*cnt+8912*m; // random seed
for (int l=m;l<=helper->lmax; ++l)
{
if ((l<spin)&&(m<spin))
alm[sharp_alm_index(helper,l,mi)] = 0.;
else
{
double rv = drand(-1,1,&state);
double iv = (m==0) ? 0 : drand(-1,1,&state);
alm[sharp_alm_index(helper,l,mi)] = rv+_Complex_I*iv;
}
}
}
} // end of parallel region
}
static unsigned long long totalops (unsigned long long val)
{
#ifdef USE_MPI
unsigned long long tmp;
MPI_Allreduce (&val, &tmp,1, MPI_UNSIGNED_LONG_LONG, MPI_SUM, MPI_COMM_WORLD);
return tmp;
#else
return val;
#endif
}
static double maxTime (double val)
{
#ifdef USE_MPI
double tmp;
MPI_Allreduce (&val, &tmp,1, MPI_DOUBLE, MPI_MAX, MPI_COMM_WORLD);
return tmp;
#else
return val;
#endif
}
static double allreduceSumDouble (double val)
{
#ifdef USE_MPI
double tmp;
MPI_Allreduce (&val, &tmp,1, MPI_DOUBLE, MPI_SUM, MPI_COMM_WORLD);
return tmp;
#else
return val;
#endif
}
static double totalMem()
{
#ifdef USE_MPI
double tmp, val=VmHWM();
MPI_Allreduce (&val, &tmp,1, MPI_DOUBLE, MPI_SUM, MPI_COMM_WORLD);
return tmp;
#else
return VmHWM();
#endif
}
#ifdef USE_MPI
static void reduce_alm_info(sharp_alm_info *ainfo)
{
int nmnew=0;
ptrdiff_t ofs = 0;
for (int i=mytask; i<ainfo->nm; i+=ntasks,++nmnew)
{
ainfo->mval[nmnew]=ainfo->mval[i];
ainfo->mvstart[nmnew]=ofs-ainfo->mval[nmnew];
ofs+=ainfo->lmax-ainfo->mval[nmnew]+1;
}
ainfo->nm=nmnew;
}
static void reduce_geom_info(sharp_geom_info *ginfo)
{
int npairsnew=0;
ptrdiff_t ofs = 0;
for (int i=mytask; i<ginfo->npairs; i+=ntasks,++npairsnew)
{
ginfo->pair[npairsnew]=ginfo->pair[i];
ginfo->pair[npairsnew].r1.ofs=ofs;
ofs+=ginfo->pair[npairsnew].r1.nph;
ginfo->pair[npairsnew].r2.ofs=ofs;
if (ginfo->pair[npairsnew].r2.nph>0) ofs+=ginfo->pair[npairsnew].r2.nph;
}
ginfo->npairs=npairsnew;
}
#endif
static ptrdiff_t get_nalms(const sharp_alm_info *ainfo)
{
ptrdiff_t res=0;
for (int i=0; i<ainfo->nm; ++i)
res += ainfo->lmax-ainfo->mval[i]+1;
return res;
}
static ptrdiff_t get_npix(const sharp_geom_info *ginfo)
{
ptrdiff_t res=0;
for (int i=0; i<ginfo->npairs; ++i)
{
res += ginfo->pair[i].r1.nph;
if (ginfo->pair[i].r2.nph>0) res += ginfo->pair[i].r2.nph;
}
return res;
}
static double *get_sqsum_and_invert (dcmplx **alm, ptrdiff_t nalms, int ncomp)
{
double *sqsum=RALLOC(double,ncomp);
for (int i=0; i<ncomp; ++i)
{
sqsum[i]=0;
for (ptrdiff_t j=0; j<nalms; ++j)
{
sqsum[i]+=creal(alm[i][j])*creal(alm[i][j])
+cimag(alm[i][j])*cimag(alm[i][j]);
alm[i][j]=-alm[i][j];
}
}
return sqsum;
}
static void get_errors (dcmplx **alm, ptrdiff_t nalms, int ncomp, double *sqsum,
double **err_abs, double **err_rel)
{
long nalms_tot=nalms;
#ifdef USE_MPI
MPI_Allreduce(&nalms,&nalms_tot,1,MPI_LONG,MPI_SUM,MPI_COMM_WORLD);
#endif
*err_abs=RALLOC(double,ncomp);
*err_rel=RALLOC(double,ncomp);
for (int i=0; i<ncomp; ++i)
{
double sum=0, maxdiff=0, sumtot, sqsumtot, maxdifftot;
for (ptrdiff_t j=0; j<nalms; ++j)
{
double sqr=creal(alm[i][j])*creal(alm[i][j])
+cimag(alm[i][j])*cimag(alm[i][j]);
sum+=sqr;
if (sqr>maxdiff) maxdiff=sqr;
}
maxdiff=sqrt(maxdiff);
#ifdef USE_MPI
MPI_Allreduce(&sum,&sumtot,1,MPI_DOUBLE,MPI_SUM,MPI_COMM_WORLD);
MPI_Allreduce(&sqsum[i],&sqsumtot,1,MPI_DOUBLE,MPI_SUM,MPI_COMM_WORLD);
MPI_Allreduce(&maxdiff,&maxdifftot,1,MPI_DOUBLE,MPI_MAX,MPI_COMM_WORLD);
#else
sumtot=sum;
sqsumtot=sqsum[i];
maxdifftot=maxdiff;
#endif
sumtot=sqrt(sumtot/nalms_tot);
sqsumtot=sqrt(sqsumtot/nalms_tot);
(*err_abs)[i]=maxdifftot;
(*err_rel)[i]=sumtot/sqsumtot;
}
}
static int good_fft_size(int n)
{
if (n<=6) return n;
int bestfac=2*n;
for (int f2=1; f2<bestfac; f2*=2)
for (int f23=f2; f23<bestfac; f23*=3)
for (int f235=f23; f235<bestfac; f235*=5)
if (f235>=n) bestfac=f235;
return bestfac;
}
static void get_infos (const char *gname, int lmax, int *mmax, int *gpar1,
int *gpar2, sharp_geom_info **ginfo, sharp_alm_info **ainfo)
{
UTIL_ASSERT(lmax>=0,"lmax must not be negative");
if (*mmax<0) *mmax=lmax;
UTIL_ASSERT(*mmax<=lmax,"mmax larger than lmax");
if (mytask==0) printf ("lmax: %d, mmax: %d\n",lmax,*mmax);
sharp_make_triangular_alm_info(lmax,*mmax,1,ainfo);
#ifdef USE_MPI
reduce_alm_info(*ainfo);
#endif
if (strcmp(gname,"healpix")==0)
{
if (*gpar1<1) *gpar1=lmax/2;
if (*gpar1==0) ++(*gpar1);
sharp_make_healpix_geom_info (*gpar1, 1, ginfo);
if (mytask==0) printf ("HEALPix grid, nside=%d\n",*gpar1);
}
else if (strcmp(gname,"gauss")==0)
{
if (*gpar1<1) *gpar1=lmax+1;
if (*gpar2<1) *gpar2=2*(*mmax)+1;
sharp_make_gauss_geom_info (*gpar1, *gpar2, 0., 1, *gpar2, ginfo);
if (mytask==0)
printf ("Gauss-Legendre grid, nlat=%d, nlon=%d\n",*gpar1,*gpar2);
}
else if (strcmp(gname,"fejer1")==0)
{
if (*gpar1<1) *gpar1=2*lmax+1;
if (*gpar2<1) *gpar2=2*(*mmax)+1;
sharp_make_fejer1_geom_info (*gpar1, *gpar2, 0., 1, *gpar2, ginfo);
if (mytask==0) printf ("Fejer1 grid, nlat=%d, nlon=%d\n",*gpar1,*gpar2);
}
else if (strcmp(gname,"fejer2")==0)
{
if (*gpar1<1) *gpar1=2*lmax+1;
if (*gpar2<1) *gpar2=2*(*mmax)+1;
sharp_make_fejer2_geom_info (*gpar1, *gpar2, 0., 1, *gpar2, ginfo);
if (mytask==0) printf ("Fejer2 grid, nlat=%d, nlon=%d\n",*gpar1,*gpar2);
}
else if (strcmp(gname,"cc")==0)
{
if (*gpar1<1) *gpar1=2*lmax+1;
if (*gpar2<1) *gpar2=2*(*mmax)+1;
sharp_make_cc_geom_info (*gpar1, *gpar2, 0., 1, *gpar2, ginfo);
if (mytask==0)
printf("Clenshaw-Curtis grid, nlat=%d, nlon=%d\n",*gpar1,*gpar2);
}
else if (strcmp(gname,"smallgauss")==0)
{
int nlat=*gpar1, nlon=*gpar2;
if (nlat<1) nlat=lmax+1;
if (nlon<1) nlon=2*(*mmax)+1;
*gpar1=nlat; *gpar2=nlon;
sharp_make_gauss_geom_info (nlat, nlon, 0., 1, nlon, ginfo);
ptrdiff_t npix_o=get_npix(*ginfo);
size_t ofs=0;
for (int i=0; i<(*ginfo)->npairs; ++i)
{
sharp_ringpair *pair=&((*ginfo)->pair[i]);
int pring=1+2*sharp_get_mlim(lmax,0,pair->r1.sth,pair->r1.cth);
if (pring>nlon) pring=nlon;
pring=good_fft_size(pring);
pair->r1.nph=pring;
pair->r1.weight*=nlon*1./pring;
pair->r1.ofs=ofs;
ofs+=pring;
if (pair->r2.nph>0)
{
pair->r2.nph=pring;
pair->r2.weight*=nlon*1./pring;
pair->r2.ofs=ofs;
ofs+=pring;
}
}
if (mytask==0)
{
ptrdiff_t npix=get_npix(*ginfo);
printf("Small Gauss grid, nlat=%d, npix=%ld, savings=%.2f%%\n",
nlat,(long)npix,(npix_o-npix)*100./npix_o);
}
}
else
UTIL_FAIL("unknown grid geometry");
#ifdef USE_MPI
reduce_geom_info(*ginfo);
#endif
}
static void check_sign_scale(void)
{
int lmax=50;
int mmax=lmax;
sharp_geom_info *tinfo;
int nrings=lmax+1;
int ppring=2*lmax+2;
ptrdiff_t npix=(ptrdiff_t)nrings*ppring;
sharp_make_gauss_geom_info (nrings, ppring, 0., 1, ppring, &tinfo);
/* flip theta to emulate the "old" Gaussian grid geometry */
for (int i=0; i<tinfo->npairs; ++i)
{
const double pi=3.141592653589793238462643383279502884197;
tinfo->pair[i].r1.cth=-tinfo->pair[i].r1.cth;
tinfo->pair[i].r2.cth=-tinfo->pair[i].r2.cth;
tinfo->pair[i].r1.theta=pi-tinfo->pair[i].r1.theta;
tinfo->pair[i].r2.theta=pi-tinfo->pair[i].r2.theta;
}
sharp_alm_info *alms;
sharp_make_triangular_alm_info(lmax,mmax,1,&alms);
ptrdiff_t nalms = ((mmax+1)*(mmax+2))/2 + (mmax+1)*(lmax-mmax);
for (int ntrans=1; ntrans<10; ++ntrans)
{
double **map;
ALLOC2D(map,double,2*ntrans,npix);
dcmplx **alm;
ALLOC2D(alm,dcmplx,2*ntrans,nalms);
for (int i=0; i<2*ntrans; ++i)
for (int j=0; j<nalms; ++j)
alm[i][j]=1.+_Complex_I;
sharp_execute(SHARP_ALM2MAP,0,&alm[0],&map[0],tinfo,alms,ntrans,SHARP_DP,
NULL,NULL);
for (int it=0; it<ntrans; ++it)
{
UTIL_ASSERT(FAPPROX(map[it][0 ], 3.588246976618616912e+00,1e-12),
"error");
UTIL_ASSERT(FAPPROX(map[it][npix/2], 4.042209792157496651e+01,1e-12),
"error");
UTIL_ASSERT(FAPPROX(map[it][npix-1],-1.234675107554816442e+01,1e-12),
"error");
}
sharp_execute(SHARP_ALM2MAP,1,&alm[0],&map[0],tinfo,alms,ntrans,SHARP_DP,
NULL,NULL);
for (int it=0; it<ntrans; ++it)
{
UTIL_ASSERT(FAPPROX(map[2*it ][0 ], 2.750897760535633285e+00,1e-12),
"error");
UTIL_ASSERT(FAPPROX(map[2*it ][npix/2], 3.137704477368562905e+01,1e-12),
"error");
UTIL_ASSERT(FAPPROX(map[2*it ][npix-1],-8.405730859837063917e+01,1e-12),
"error");
UTIL_ASSERT(FAPPROX(map[2*it+1][0 ],-2.398026536095463346e+00,1e-12),
"error");
UTIL_ASSERT(FAPPROX(map[2*it+1][npix/2],-4.961140548331700728e+01,1e-12),
"error");
UTIL_ASSERT(FAPPROX(map[2*it+1][npix-1],-1.412765834230440021e+01,1e-12),
"error");
}
sharp_execute(SHARP_ALM2MAP,2,&alm[0],&map[0],tinfo,alms,ntrans,SHARP_DP,
NULL,NULL);
for (int it=0; it<ntrans; ++it)
{
UTIL_ASSERT(FAPPROX(map[2*it ][0 ],-1.398186224727334448e+00,1e-12),
"error");
UTIL_ASSERT(FAPPROX(map[2*it ][npix/2],-2.456676000884031197e+01,1e-12),
"error");
UTIL_ASSERT(FAPPROX(map[2*it ][npix-1],-1.516249174408820863e+02,1e-12),
"error");
UTIL_ASSERT(FAPPROX(map[2*it+1][0 ],-3.173406200299964119e+00,1e-12),
"error");
UTIL_ASSERT(FAPPROX(map[2*it+1][npix/2],-5.831327404513146462e+01,1e-12),
"error");
UTIL_ASSERT(FAPPROX(map[2*it+1][npix-1],-1.863257892248353897e+01,1e-12),
"error");
}
sharp_execute(SHARP_ALM2MAP_DERIV1,1,&alm[0],&map[0],tinfo,alms,ntrans,
SHARP_DP,NULL,NULL);
for (int it=0; it<ntrans; ++it)
{
UTIL_ASSERT(FAPPROX(map[2*it ][0 ],-6.859393905369091105e-01,1e-11),
"error");
UTIL_ASSERT(FAPPROX(map[2*it ][npix/2],-2.103947835973212364e+02,1e-12),
"error");
UTIL_ASSERT(FAPPROX(map[2*it ][npix-1],-1.092463246472086439e+03,1e-12),
"error");
UTIL_ASSERT(FAPPROX(map[2*it+1][0 ],-1.411433220713928165e+02,1e-12),
"error");
UTIL_ASSERT(FAPPROX(map[2*it+1][npix/2],-1.146122859381925082e+03,1e-12),
"error");
UTIL_ASSERT(FAPPROX(map[2*it+1][npix-1], 7.821618677689795049e+02,1e-12),
"error");
}
DEALLOC2D(map);
DEALLOC2D(alm);
}
sharp_destroy_alm_info(alms);
sharp_destroy_geom_info(tinfo);
}
static void do_sht (sharp_geom_info *ginfo, sharp_alm_info *ainfo,
int spin, int ntrans, int nv, double **err_abs, double **err_rel,
double *t_a2m, double *t_m2a, unsigned long long *op_a2m,
unsigned long long *op_m2a)
{
ptrdiff_t nalms = get_nalms(ainfo);
int ncomp = ntrans*((spin==0) ? 1 : 2);
size_t npix = get_npix(ginfo);
double **map;
ALLOC2D(map,double,ncomp,npix);
for (int i=0; i<ncomp; ++i)
SET_ARRAY(map[i],0,(int)npix,0);
dcmplx **alm;
ALLOC2D(alm,dcmplx,ncomp,nalms);
for (int i=0; i<ncomp; ++i)
random_alm(alm[i],ainfo,spin,i+1);
#ifdef USE_MPI
sharp_execute_mpi(MPI_COMM_WORLD,SHARP_ALM2MAP,spin,&alm[0],&map[0],ginfo,
ainfo,ntrans, SHARP_DP|SHARP_ADD|nv,t_a2m,op_a2m);
#else
sharp_execute(SHARP_ALM2MAP,spin,&alm[0],&map[0],ginfo,ainfo,ntrans,
SHARP_DP|nv,t_a2m,op_a2m);
#endif
if (t_a2m!=NULL) *t_a2m=maxTime(*t_a2m);
if (op_a2m!=NULL) *op_a2m=totalops(*op_a2m);
double *sqsum=get_sqsum_and_invert(alm,nalms,ncomp);
#ifdef USE_MPI
sharp_execute_mpi(MPI_COMM_WORLD,SHARP_MAP2ALM,spin,&alm[0],&map[0],ginfo,
ainfo,ntrans,SHARP_DP|SHARP_ADD|nv,t_m2a,op_m2a);
#else
sharp_execute(SHARP_MAP2ALM,spin,&alm[0],&map[0],ginfo,ainfo,ntrans,
SHARP_DP|SHARP_ADD|nv,t_m2a,op_m2a);
#endif
if (t_m2a!=NULL) *t_m2a=maxTime(*t_m2a);
if (op_m2a!=NULL) *op_m2a=totalops(*op_m2a);
get_errors(alm, nalms, ncomp, sqsum, err_abs, err_rel);
DEALLOC(sqsum);
DEALLOC2D(map);
DEALLOC2D(alm);
}
static void check_accuracy (sharp_geom_info *ginfo, sharp_alm_info *ainfo,
int spin, int ntrans, int nv)
{
int ncomp = ntrans*((spin==0) ? 1 : 2);
double *err_abs, *err_rel;
do_sht (ginfo, ainfo, spin, ntrans, nv, &err_abs, &err_rel, NULL, NULL,
NULL, NULL);
for (int i=0; i<ncomp; ++i)
UTIL_ASSERT((err_rel[i]<1e-10) && (err_abs[i]<1e-10),"error");
DEALLOC(err_rel);
DEALLOC(err_abs);
}
static void sharp_acctest(void)
{
if (mytask==0) sharp_module_startup("sharp_acctest",1,1,"",1);
if (mytask==0) printf("Checking signs and scales.\n");
check_sign_scale();
if (mytask==0) printf("Passed.\n\n");
if (mytask==0) printf("Testing map analysis accuracy.\n");
sharp_geom_info *ginfo;
sharp_alm_info *ainfo;
int lmax=127, mmax=127, nlat=128, nlon=256;
get_infos ("gauss", lmax, &mmax, &nlat, &nlon, &ginfo, &ainfo);
for (int nv=1; nv<=6; ++nv)
for (int ntrans=1; ntrans<=6; ++ntrans)
{
check_accuracy(ginfo,ainfo,0,ntrans,nv);
check_accuracy(ginfo,ainfo,1,ntrans,nv);
check_accuracy(ginfo,ainfo,2,ntrans,nv);
check_accuracy(ginfo,ainfo,3,ntrans,nv);
check_accuracy(ginfo,ainfo,30,ntrans,nv);
}
sharp_destroy_alm_info(ainfo);
sharp_destroy_geom_info(ginfo);
if (mytask==0) printf("Passed.\n\n");
}
static void sharp_test (int argc, const char **argv)
{
if (mytask==0) sharp_announce("sharp_test");
UTIL_ASSERT(argc>=9,"usage: grid lmax mmax geom1 geom2 spin ntrans");
int lmax=atoi(argv[3]);
int mmax=atoi(argv[4]);
int gpar1=atoi(argv[5]);
int gpar2=atoi(argv[6]);
int spin=atoi(argv[7]);
int ntrans=atoi(argv[8]);
if (mytask==0) printf("Testing map analysis accuracy.\n");
if (mytask==0) printf("spin=%d, ntrans=%d\n", spin, ntrans);
sharp_geom_info *ginfo;
sharp_alm_info *ainfo;
get_infos (argv[2], lmax, &mmax, &gpar1, &gpar2, &ginfo, &ainfo);
int ncomp = ntrans*((spin==0) ? 1 : 2);
double t_a2m=1e30, t_m2a=1e30;
unsigned long long op_a2m, op_m2a;
double *err_abs,*err_rel;
double t_acc=0;
int nrpt=0;
while(1)
{
++nrpt;
double ta2m2, tm2a2;
do_sht (ginfo, ainfo, spin, ntrans, 0, &err_abs, &err_rel, &ta2m2, &tm2a2,
&op_a2m, &op_m2a);
if (ta2m2<t_a2m) t_a2m=ta2m2;
if (tm2a2<t_m2a) t_m2a=tm2a2;
t_acc+=t_a2m+t_m2a;
if (t_acc>2.)
{
if (mytask==0) printf("Best of %d runs\n",nrpt);
break;
}
DEALLOC(err_abs);
DEALLOC(err_rel);
}
if (mytask==0) printf("wall time for alm2map: %fs\n",t_a2m);
if (mytask==0) printf("Performance: %fGFLOPs/s\n",1e-9*op_a2m/t_a2m);
if (mytask==0) printf("wall time for map2alm: %fs\n",t_m2a);
if (mytask==0) printf("Performance: %fGFLOPs/s\n",1e-9*op_m2a/t_m2a);
if (mytask==0)
for (int i=0; i<ncomp; ++i)
printf("component %i: rms %e, maxerr %e\n",i,err_rel[i], err_abs[i]);
double iosize = ncomp*(16.*get_nalms(ainfo) + 8.*get_npix(ginfo));
iosize = allreduceSumDouble(iosize);
sharp_destroy_alm_info(ainfo);
sharp_destroy_geom_info(ginfo);
double tmem=totalMem();
if (mytask==0)
printf("\nMemory high water mark: %.2f MB\n",tmem/(1<<20));
if (mytask==0)
printf("Memory overhead: %.2f MB (%.2f%% of working set)\n",
(tmem-iosize)/(1<<20),100.*(1.-iosize/tmem));
#ifdef _OPENMP
int nomp=omp_get_max_threads();
#else
int nomp=1;
#endif
double maxerel=0., maxeabs=0.;
for (int i=0; i<ncomp; ++i)
{
if (maxerel<err_rel[i]) maxerel=err_rel[i];
if (maxeabs<err_abs[i]) maxeabs=err_abs[i];
}
if (mytask==0)
printf("%-12s %-10s %2d %d %2d %3d %6d %6d %6d %6d %2d %.2e %7.2f %.2e %7.2f"
" %9.2f %6.2f %.2e %.2e\n",
getenv("HOST"),argv[2],spin,VLEN,nomp,ntasks,lmax,mmax,gpar1,gpar2,
ntrans,t_a2m,1e-9*op_a2m/t_a2m,t_m2a,1e-9*op_m2a/t_m2a,tmem/(1<<20),
100.*(1.-iosize/tmem),maxerel,maxeabs);
DEALLOC(err_abs);
DEALLOC(err_rel);
}
static void sharp_bench (int argc, const char **argv)
{
if (mytask==0) sharp_announce("sharp_bench");
UTIL_ASSERT(argc>=9,"usage: grid lmax mmax geom1 geom2 spin ntrans");
int lmax=atoi(argv[3]);
int mmax=atoi(argv[4]);
int gpar1=atoi(argv[5]);
int gpar2=atoi(argv[6]);
int spin=atoi(argv[7]);
int ntrans=atoi(argv[8]);
if (mytask==0) printf("Testing map analysis accuracy.\n");
if (mytask==0) printf("spin=%d, ntrans=%d\n", spin, ntrans);
sharp_geom_info *ginfo;
sharp_alm_info *ainfo;
get_infos (argv[2], lmax, &mmax, &gpar1, &gpar2, &ginfo, &ainfo);
double ta2m_auto=1e30, tm2a_auto=1e30, ta2m_min=1e30, tm2a_min=1e30;
unsigned long long opa2m_min=0, opm2a_min=0;
int nvmin_a2m=-1, nvmin_m2a=-1;
for (int nv=0; nv<=6; ++nv)
{
int ntries=0;
double tacc=0;
do
{
double t_a2m, t_m2a;
unsigned long long op_a2m, op_m2a;
double *err_abs,*err_rel;
do_sht (ginfo, ainfo, spin, ntrans, nv, &err_abs, &err_rel,
&t_a2m, &t_m2a, &op_a2m, &op_m2a);
DEALLOC(err_abs);
DEALLOC(err_rel);
tacc+=t_a2m+t_m2a;
++ntries;
if (nv==0)
{
if (t_a2m<ta2m_auto) ta2m_auto=t_a2m;
if (t_m2a<tm2a_auto) tm2a_auto=t_m2a;
}
else
{
if (t_a2m<ta2m_min) { nvmin_a2m=nv; ta2m_min=t_a2m; opa2m_min=op_a2m; }
if (t_m2a<tm2a_min) { nvmin_m2a=nv; tm2a_min=t_m2a; opm2a_min=op_m2a; }
}
} while((ntries<2)||(tacc<3.));
}
if (mytask==0)
{
printf("a2m: nvmin=%d tmin=%fs speedup=%.2f%% perf=%.2fGFlops/s\n",
nvmin_a2m,ta2m_min,100.*(ta2m_auto-ta2m_min)/ta2m_auto,
1e-9*opa2m_min/ta2m_min);
printf("m2a: nvmin=%d tmin=%fs speedup=%.2f%% perf=%.2fGFlops/s\n",
nvmin_m2a,tm2a_min,100.*(tm2a_auto-tm2a_min)/tm2a_auto,
1e-9*opm2a_min/tm2a_min);
}
sharp_destroy_alm_info(ainfo);
sharp_destroy_geom_info(ginfo);
}
int main(int argc, const char **argv)
{
#ifdef USE_MPI
MPI_Init(NULL,NULL);
MPI_Comm_size(MPI_COMM_WORLD,&ntasks);
MPI_Comm_rank(MPI_COMM_WORLD,&mytask);
#else
mytask=0; ntasks=1;
#endif
UTIL_ASSERT(argc>=2,"need at least one command line argument");
if (strcmp(argv[1],"acctest")==0)
sharp_acctest();
else if (strcmp(argv[1],"test")==0)
sharp_test(argc,argv);
else if (strcmp(argv[1],"bench")==0)
sharp_bench(argc,argv);
else
UTIL_FAIL("unknown command");
#ifdef USE_MPI
MPI_Finalize();
#endif
return 0;
}
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