Commit 1b0030c6 authored by James Willis's avatar James Willis
Browse files

Added function to caclculate the nonsym density interaction with one set of vectors.

parent ce5ab497
......@@ -373,6 +373,109 @@ runner_iact_nonsym_vec_density(float *R2, float *Dx, float *Hi, float *Hj,
* @brief Density interaction computed using 2 interleaved vectors
* (non-symmetric vectorized version).
__attribute__((always_inline)) INLINE static void
float *R2, float *Dx, float *Dy, float *Dz, vector hi_inv, vector vix,
vector viy, vector viz, float *Vjx, float *Vjy, float *Vjz, float *Mj,
vector *rhoSum, vector *rho_dhSum, vector *wcountSum, vector *wcount_dhSum,
vector *div_vSum, vector *curlvxSum, vector *curlvySum, vector *curlvzSum,
vector mask, vector mask2, int knlMask, int knlMask2) {
vector r, ri, r2, xi, wi, wi_dx;
vector mj;
vector dx, dy, dz, dvx, dvy, dvz;
vector vjx, vjy, vjz;
vector dvdr;
vector curlvrx, curlvry, curlvrz;
/* Fill the vectors. */
mj.v = vec_load(Mj);
vjx.v = vec_load(Vjx);
vjy.v = vec_load(Vjy);
vjz.v = vec_load(Vjz);
dx.v = vec_load(Dx);
dy.v = vec_load(Dy);
dz.v = vec_load(Dz);
/* Get the radius and inverse radius. */
r2.v = vec_load(R2);
ri = vec_reciprocal_sqrt(r2);
r.v = vec_mul(r2.v, ri.v);
xi.v = vec_mul(r.v, hi_inv.v);
/* Calculate the kernel for two particles. */
kernel_deval_1_vec(&xi, &wi, &wi_dx);
/* Compute dv. */
dvx.v = vec_sub(vix.v, vjx.v);
dvy.v = vec_sub(viy.v, vjy.v);
dvz.v = vec_sub(viz.v, vjz.v);
/* Compute dv dot r */
dvdr.v = vec_fma(dvx.v, dx.v, vec_fma(dvy.v, dy.v, vec_mul(dvz.v, dz.v)));
dvdr.v = vec_mul(dvdr.v, ri.v);
/* Compute dv cross r */
curlvrx.v =
vec_fma(dvy.v, dz.v, vec_mul(vec_set1(-1.0f), vec_mul(dvz.v, dy.v)));
curlvry.v =
vec_fma(dvz.v, dx.v, vec_mul(vec_set1(-1.0f), vec_mul(dvx.v, dz.v)));
curlvrz.v =
vec_fma(dvx.v, dy.v, vec_mul(vec_set1(-1.0f), vec_mul(dvy.v, dx.v)));
curlvrx.v = vec_mul(curlvrx.v, ri.v);
curlvry.v = vec_mul(curlvry.v, ri.v);
curlvrz.v = vec_mul(curlvrz.v, ri.v);
/* Mask updates to intermediate vector sums for particle pi. */
#ifdef HAVE_AVX512_F
rhoSum->v =
_mm512_mask_add_ps(rhoSum->v, knlMask, vec_mul(mj.v, wi.v), rhoSum->v);
rho_dhSum->v =
_mm512_mask_sub_ps(rho_dhSum->v, knlMask, rho_dhSum->v,
vec_mul(mj.v, vec_fma(vec_set1(hydro_dimension), wi.v,
vec_mul(xi.v, wi_dx.v))));
wcountSum->v = _mm512_mask_add_ps(wcountSum->v, knlMask, wi.v, wcountSum->v);
wcount_dhSum->v = _mm512_mask_sub_ps(wcount_dhSum->v, knlMask,
wcount_dhSum->v, vec_mul(xi.v, wi_dx.v));
div_vSum->v = _mm512_mask_sub_ps(div_vSum->v, knlMask, div_vSum->v,
vec_mul(mj.v, vec_mul(dvdr.v, wi_dx.v)));
curlvxSum->v = _mm512_mask_add_ps(curlvxSum->v, knlMask,
vec_mul(mj.v, vec_mul(curlvrx.v, wi_dx.v)),
curlvySum->v = _mm512_mask_add_ps(curlvySum->v, knlMask,
vec_mul(mj.v, vec_mul(curlvry.v, wi_dx.v)),
curlvzSum->v = _mm512_mask_add_ps(curlvzSum->v, knlMask,
vec_mul(mj.v, vec_mul(curlvrz.v, wi_dx.v)),
rhoSum->v += vec_and(vec_mul(mj.v, wi.v), mask.v);
rho_dhSum->v -= vec_and(vec_mul(mj.v, vec_fma(vec_set1(hydro_dimension), wi.v,
vec_mul(xi.v, wi_dx.v))),
wcountSum->v += vec_and(wi.v, mask.v);
wcount_dhSum->v -= vec_and(vec_mul(xi.v, wi_dx.v), mask.v);
div_vSum->v -= vec_and(vec_mul(mj.v, vec_mul(dvdr.v, wi_dx.v)), mask.v);
curlvxSum->v += vec_and(vec_mul(mj.v, vec_mul(curlvrx.v, wi_dx.v)), mask.v);
curlvySum->v += vec_and(vec_mul(mj.v, vec_mul(curlvry.v, wi_dx.v)), mask.v);
curlvzSum->v += vec_and(vec_mul(mj.v, vec_mul(curlvrz.v, wi_dx.v)), mask.v);
* @brief Density interaction computed using 2 interleaved vectors
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