Real optical-design workflows and performance benchmarks, run in LensHH-LT.
The same bit-identical merit function on eight systems — from a fanless laptop to a datacenter H100. The GPU value pre-screen reaches ~446k evaluations/second; the CPU runs the analytic-Jacobian polish.
Synthesis by Saddle-Point Construction grows a biconvex BK7 singlet into a singlet + cemented doublet, dropping the merit function ~210× in two clicks — discovering the topology without a human picking it.
