0hmX/am3352

scripts/retry-ddr-dq2-shorter.ts

/** Retire exactly the overlong DQ2 host, preserving its proven CPU transition. */
import{readFileSync,writeFileSync,mkdirSync}from'node:fs';import{resolve}from'node:path';import{objectHash as hash}from'./improve-ddr-a9-power-launches';import{auditCompositeHostTopology}from'./ddr-composite-routing-context';import{verifyDdrSystemCopper}from'./check-ddr-system-copper';
const parent=resolve('dist/ddr-twelve-dq1-partial-timing'),out=resolve('dist/ddr-dq2-shorter-parent'),td=resolve('dist/ddr-dq2-shorter-transition'),read=(p:string)=>JSON.parse(readFileSync(p,'utf8')),c=read(parent+'/candidate.circuit.json'),h=read(parent+'/host-bundle.json'),r=read(parent+'/report.json'),input=read(parent+'/routing-input.json'),old=h.traces.find((t:any)=>t.source_trace_id==='source_trace_577'),template=read('dist/ddr-d2-transition/transition-plan.json'),t=template.accepted[0],connection=input.connections.find((c:any)=>c.name===old.connection_name),candidate=c.filter((e:any)=>e.pcb_trace_id!==old.pcb_trace_id),host={...h,traces:h.traces.filter((e:any)=>e.pcb_trace_id!==old.pcb_trace_id)},planes=candidate.filter((e:any)=>e.type==='pcb_copper_pour');
if(hash(c.find((e:any)=>e.pcb_trace_id===old.pcb_trace_id))!==hash(old)||h.traces.length!==12||candidate.length!==c.length-1)throw Error('Unexpected oldDQ2');
const planar=(route:any[])=>route.slice(1).reduce((n:number,p:any,i:number)=>n+(p.route_type==='wire'&&route[i].route_type==='wire'&&p.layer===route[i].layer?Math.hypot(p.x-route[i].x,p.y-route[i].y):0),0),escape=(p:any)=>{const exit=candidate.find((e:any)=>e.pcb_breakout_point_id===p.pointId),ts=candidate.filter((e:any)=>e.type==='pcb_trace'&&e.source_trace_id===exit?.source_trace_id&&e.route.at(-1)?.layer===p.layer&&Math.hypot(e.route.at(-1).x-p.x,e.route.at(-1).y-p.y)<1e-7);if(ts.length!==1)throw Error('Ambiguous escape');return planar(ts[0].route)},[ram,cpu]=[...connection.pointsToConnect].sort((a:any,b:any)=>a.x-b.x),topology=auditCompositeHostTopology(candidate,host.traces,input.connections),ids=new Set(host.traces.map((t:any)=>t.pcb_trace_id)),fixed=candidate.filter((e:any)=>!ids.has(e.pcb_trace_id)),physical=verifyDdrSystemCopper(fixed,[...host.traces,t.trace],input.connections,{});if(!topology.valid||physical.errors.length||physical.violations.length||!physical.angles.valid||physical.joinedBends.length)throw Error('Baseline or CPU transition invalid');
const nominal=read('dist/ddr-integrated-ten/dqlm-audit.json').bytes.find((b:any)=>b.byte===connection.ramByte).dqlmPairedDataMaximumMm,budget={ramEscapeMm:escape(ram),cpuEscapeMm:escape(cpu),nominalMm:nominal,targetPlanarMm:r.strobePair.meanMm};mkdirSync(out,{recursive:true});mkdirSync(td,{recursive:true});const write=(d:string,n:string,v:any)=>writeFileSync(resolve(d,n),JSON.stringify(v,null,2)+'\n');write(out,'candidate.circuit.json',candidate);write(out,'host-bundle.json',host);write(out,'routing-input.json',{...input,traces:host.traces});write(out,'report.json',{...r,candidateCircuitSha256:hash(candidate),physical:topology.physical,topology,exactRetirement:{parentDirectory:parent,parentCircuitSha256:hash(c),before:old,beforeSha256:hash(old)},scope:'Isolated DQ2 reroute experiment;11 hosts retained. Only exact overlong host removed;allplanes preserved.'});write(td,'planes.json',planes);write(td,'transition-plan.json',{captureHash:r.captureHash,parentCircuitSha256:hash(candidate),hostTracesSha256:hash(host.traces),connection,accepted:[{...t,source:cpu,target:ram,budget}],priorTemplateSha256:hash(template),physical});console.log(JSON.stringify({oldHostMm:planar(old.route),oldFullMm:planar(old.route)+budget.ramEscapeMm+budget.cpuEscapeMm,budget,via:t.via,retained:host.traces.length}))