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git-svn-id: svn://svn.icms.temple.edu/lammps-ro/trunk@8766 f3b2605a-c512-4ea7-a41b-209d697bcdaa

This commit is contained in:
sjplimp 2012-09-11 14:24:53 +00:00
parent c4da5b2e36
commit 257bfccd01
1 changed files with 32 additions and 30 deletions
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62
src/KSPACE/pppm.cpp
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@ -84,7 +84,8 @@ PPPM::PPPM(LAMMPS *lmp, int narg, char **arg) : KSpace(lmp, narg, arg)
fkx = fky = fkz = NULL;
buf1 = buf2 = buf3 = buf4 = NULL;
sf_precoeff1 = sf_precoeff2 = sf_precoeff3 = sf_precoeff4 = sf_precoeff5 = sf_precoeff6 = NULL;
sf_precoeff1 = sf_precoeff2 = sf_precoeff3 =
sf_precoeff4 = sf_precoeff5 = sf_precoeff6 = NULL;
density_A_brick = density_B_brick = NULL;
density_A_fft = density_B_fft = NULL;
@ -403,9 +404,9 @@ void PPPM::setup()
delvolinv = delxinv*delyinv*delzinv;
double unitkx = (2.0*MY_PI/xprd);
double unitky = (2.0*MY_PI/yprd);
double unitkz = (2.0*MY_PI/zprd_slab);
double unitkx = (MY_2PI/xprd);
double unitky = (MY_2PI/yprd);
double unitkz = (MY_2PI/zprd_slab);
// fkx,fky,fkz for my FFT grid pts
@ -942,9 +943,9 @@ double PPPM::compute_qopt()
volume = xprd * yprd * zprd_slab;
double delvolcell = nx_pppm*ny_pppm*nz_pppm/volume;
double unitkx = (2.0*MY_PI/xprd);
double unitky = (2.0*MY_PI/yprd);
double unitkz = (2.0*MY_PI/zprd_slab);
double unitkx = (MY_2PI/xprd);
double unitky = (MY_2PI/yprd);
double unitkz = (MY_2PI/zprd_slab);
int nx,ny,nz,kper,lper,mper;
double argx,argy,argz,wx,wy,wz,sx,sy,sz,qx,qy,qz;
@ -1026,7 +1027,7 @@ double PPPM::estimate_ik_error(double h, double prd, bigint natoms)
for (int m = 0; m < order; m++)
sum += acons[order][m] * pow(h*g_ewald,2.0*m);
double value = q2 * pow(h*g_ewald,(double)order) *
sqrt(g_ewald*prd*sqrt(2.0*MY_PI)*sum/natoms) / (prd*prd);
sqrt(g_ewald*prd*sqrt(MY_2PI)*sum/natoms) / (prd*prd);
return value;
}
@ -1397,9 +1398,9 @@ void PPPM::compute_gf_ik()
double yprd = prd[1];
double zprd = prd[2];
double zprd_slab = zprd*slab_volfactor;
double unitkx = (2.0*MY_PI/xprd);
double unitky = (2.0*MY_PI/yprd);
double unitkz = (2.0*MY_PI/zprd_slab);
double unitkx = (MY_2PI/xprd);
double unitky = (MY_2PI/yprd);
double unitkz = (MY_2PI/zprd_slab);
int nbx = static_cast<int> ((g_ewald*xprd/(MY_PI*nx_pppm)) *
pow(-log(EPS_HOC),0.25));
@ -1484,9 +1485,9 @@ void PPPM::compute_gf_ad()
double zprd_slab = zprd*slab_volfactor;
volume = xprd * yprd * zprd_slab;
double unitkx = (2.0*MY_PI/xprd);
double unitky = (2.0*MY_PI/yprd);
double unitkz = (2.0*MY_PI/zprd_slab);
double unitkx = (MY_2PI/xprd);
double unitky = (MY_2PI/yprd);
double unitkz = (MY_2PI/zprd_slab);
int nx,ny,nz,kper,lper,mper;
double snx,sny,snz,snx2,sny2,snz2;
@ -1494,7 +1495,7 @@ void PPPM::compute_gf_ad()
double argx,argy,argz,wx,wy,wz,sx,sy,sz,qx,qy,qz;
double numerator,denominator;
for (i == 0; i <= 5; i++) sf_coeff[i] = 0.0;
for (i = 0; i <= 5; i++) sf_coeff[i] = 0.0;
n = 0;
for (m = nzlo_fft; m <= nzhi_fft; m++) {
@ -1541,8 +1542,8 @@ void PPPM::compute_gf_ad()
sf_coeff[2] += sf_precoeff3[n]*greensfn[n];
sf_coeff[3] += sf_precoeff4[n]*greensfn[n];
sf_coeff[4] += sf_precoeff5[n]*greensfn[n];
sf_coeff[5] += sf_precoeff6[n]*greensfn[n++];
sf_coeff[5] += sf_precoeff6[n]*greensfn[n];
n++;
} else {
greensfn[n] = 0.0;
sf_coeff[0] += sf_precoeff1[n]*greensfn[n];
@ -1550,13 +1551,14 @@ void PPPM::compute_gf_ad()
sf_coeff[2] += sf_precoeff3[n]*greensfn[n];
sf_coeff[3] += sf_precoeff4[n]*greensfn[n];
sf_coeff[4] += sf_precoeff5[n]*greensfn[n];
sf_coeff[5] += sf_precoeff6[n]*greensfn[n++];
sf_coeff[5] += sf_precoeff6[n]*greensfn[n];
n++
}
}
}
}
// Compute the coefficients for the self-force correction
// compute the coefficients for the self-force correction
double prex, prey, prez;
prex = prey = prez = MY_PI/volume;
@ -1605,9 +1607,9 @@ void PPPM::compute_sf_precoeff()
sum1 = sum2 = sum3 = sum4 = sum5 = sum6 = 0.0;
for (i = -nb; i <= nb; i++) {
qx0 = 2.0*MY_PI*(kper+nx_pppm*i);
qx1 = 2.0*MY_PI*(kper+nx_pppm*(i+1));
qx2 = 2.0*MY_PI*(kper+nx_pppm*(i+2));
qx0 = MY_2PI*(kper+nx_pppm*i);
qx1 = MY_2PI*(kper+nx_pppm*(i+1));
qx2 = MY_2PI*(kper+nx_pppm*(i+2));
wx0[i+2] = 1.0;
wx1[i+2] = 1.0;
wx2[i+2] = 1.0;
@ -1618,9 +1620,9 @@ void PPPM::compute_sf_precoeff()
argx = 0.5*qx2/nx_pppm;
if (argx != 0.0) wx2[i+2] = pow(sin(argx)/argx,order);
qy0 = 2.0*MY_PI*(lper+ny_pppm*i);
qy1 = 2.0*MY_PI*(lper+ny_pppm*(i+1));
qy2 = 2.0*MY_PI*(lper+ny_pppm*(i+2));
qy0 = MY_2PI*(lper+ny_pppm*i);
qy1 = MY_2PI*(lper+ny_pppm*(i+1));
qy2 = MY_2PI*(lper+ny_pppm*(i+2));
wy0[i+2] = 1.0;
wy1[i+2] = 1.0;
wy2[i+2] = 1.0;
@ -1631,9 +1633,9 @@ void PPPM::compute_sf_precoeff()
argy = 0.5*qy2/ny_pppm;
if (argy != 0.0) wy2[i+2] = pow(sin(argy)/argy,order);
qz0 = 2.0*MY_PI*(mper+nz_pppm*i);
qz1 = 2.0*MY_PI*(mper+nz_pppm*(i+1));
qz2 = 2.0*MY_PI*(mper+nz_pppm*(i+2));
qz0 = MY_2PI*(mper+nz_pppm*i);
qz1 = MY_2PI*(mper+nz_pppm*(i+1));
qz2 = MY_2PI*(mper+nz_pppm*(i+2));
wz0[i+2] = 1.0;
wz1[i+2] = 1.0;
wz2[i+2] = 1.0;
@ -3561,7 +3563,7 @@ void PPPM::slabcorr()
// compute corrections
const double e_slabcorr = 2.0*MY_PI*dipole_all*dipole_all/volume;
const double e_slabcorr = MY_2PI*dipole_all*dipole_all/volume;
const double qscale = force->qqrd2e * scale;
if (eflag_global) energy += qscale * e_slabcorr;
@ -3569,7 +3571,7 @@ void PPPM::slabcorr()
// per-atom energy
if (eflag_atom) {
double efact = 2.0*MY_PI*dipole_all/volume;
double efact = MY_2PI*dipole_all/volume;
for (int i = 0; i < nlocal; i++) eatom[i] += qscale * q[i]*x[i][2]*efact;
}