Jdunakonferenci

Former-commit-id: e734bb63665d03b986a98e45f937979eacab58c4
This commit is contained in:
Marek Nečada 2018-08-27 10:28:34 +03:00
parent 758c37b2b2
commit 7c0f285c23
2 changed files with 40 additions and 10 deletions

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@ -109,7 +109,7 @@ int ewald32_sigma_long_shiftedpoints (
double rbeta_pq = cart2norm(beta_pq);
// CHOOSE POINT END
complex double phasefac = cexp(I*cart2_dot(beta_pq,particle_shift)); // POINT-DEPENDENT (PFC)
complex double phasefac = cexp(I*cart2_dot(beta_pq,particle_shift)); // POINT-DEPENDENT (PFC) // !!!CHECKSIGN!!!
double arg_pq = atan2(beta_pq.y, beta_pq.x); // POINT-DEPENDENT
// R-DEPENDENT BEGIN
@ -125,6 +125,8 @@ int ewald32_sigma_long_shiftedpoints (
// and just fetched for each n, m pair
for(qpms_l_t n = 0; n <= lMax; ++n)
for(qpms_m_t m = -n; m <= n; ++m) {
if((m+n) % 2 != 0) // odd coefficients are zero.
continue;
qpms_y_t y = qpms_mn2y(m, n);
complex double e_imalpha_pq = cexp(I*m*arg_pq);
complex double jsum, jsum_c; ckahaninit(&jsum, &jsum_c);
@ -140,7 +142,7 @@ int ewald32_sigma_long_shiftedpoints (
summand *= Gamma_pq[j].val; // GGG
ckahanadd(&jsum, &jsum_c, summand);
}
jsum *= phasefac;
jsum *= phasefac; // PFC
ckahanadd(target + y, target_c + y, jsum);
if(err) kahanadd(err + y, err_c + y, jsum_err);
}
@ -156,6 +158,41 @@ int ewald32_sigma_long_shiftedpoints (
return 0;
}
int ewald32_sigma_short_shiftedpoints(
complex double *target, // must be c->nelem long
double *err,
const qpms_ewald32_constants_t *c, // N.B. not too useful here
const double eta, const double k,
const size_t npoints, const point2d *Rpoints_plus_particle_shift,
const point2d particle_shift // used only in the very end to multiply it by the phase
)
{
const qpms_y_t nelem = c->nelem;
const qpms_l_t lMax = c->lMax;
// Manual init of the ewald summation targets
complex double *target_c = calloc(nelem, sizeof(complex double));
memset(target, 0, nelem * sizeof(complex double));
double *err_c = NULL;
if (err) {
err_c = calloc(nelem, sizeof(double));
memset(err, 0, nelem * sizeof(double));
}
//// Zde jsem skončil
free(err_c);
free(target_c);
return 0;
}
#if 0
@ -175,14 +212,6 @@ int ewald32_sigma_long_shiftedpoints_rordered(
const points2d_rordered_t *Kpoints_plus_beta_rordered,
point2d particle_shift
);
int ewald32_sigma_short_shiftedpoints(
complex double *target_sigmasr_y, // must be c->nelem long
const qpms_ewald32_constants_t *c, // N.B. not too useful here
double eta, double k,
size_t npoints, const point2d *Rpoints_plus_particle_shift,
point2d particle_shift // used only in the very end to multiply it by the phase
);
int ewald32_sigma_short_points_and_shift(
complex double *target_sigmasr_y, // must be c->nelem long
const qpms_ewald32_constants_t *c, // N.B. not too useful here

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@ -18,6 +18,7 @@ typedef struct {
qpms_y_t nelem;
qpms_l_t *s1_jMaxes;
complex double **s1_constfacs; // indices [y][j] where j is same as in [1, (4.5)]
// TODO probably normalisation and equatorial legendre polynomials should be included, too
complex double *s1_constfacs_base; // internal pointer holding the memory for the constants
} qpms_ewald32_constants_t;