/home/eoseret/qaas/qaas_runs/178-547-6790/intel/miniqmc/build/miniqmc/src/QMCWaveFunctions/Jastrow/TwoBodyJastrowRef.h: 344 - 347
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344:       const valT newg = cur_du_pt[jat] * new_dX[jat];
345:       const valT dg   = newg - old_du_pt[jat] * old_dX[jat];
346:       save_g[jat] -= dg;
347:       cur_g += newg;
