# Sub-Volume D: Edge/Last-Mile GPU for Metaverse in 325 Regions over 6G

## Overview

Deploys a global DBIS GPU-edge compute fabric across 325 regions to support metaverse real-time rendering, DBIS node execution, quantum proxy operations, ZK ledger validation, and AI behavioral engines.

## 6G Sovereign Network Fabric

Supports:

- **Ultra-low latency (<1ms)** - 6G network with sub-millisecond latency
- **Quantum-safe tunneling** - Secure quantum-safe network tunnels
- **Real-time holographic compute** - Support for holographic rendering

## GPU Edge Node Types

Four node types are supported:

- **MGN (Metaverse GPU Node)** - Metaverse real-time rendering
- **QGN (Quantum Gateway Node)** - Quantum proxy operations
- **ZKN (ZK Validation Node)** - ZK ledger validation
- **SAN (Sovereign AI Node)** - AI behavioral engines

## Services

### GpuEdgeNodeService

Service for GPU edge node management.

**Location**: `src/infrastructure/compute/gpu-edge/gpu-edge-node.service.ts`

**Key Methods**:
- `createGpuEdgeNode()` - Create GPU edge node
- `getNode()` - Get node by ID
- `getNodesByType()` - Get nodes by type
- `getNodesForRegion()` - Get nodes for region

### GpuEdgeDeploymentService

Service for 325-region deployment orchestration.

**Location**: `src/infrastructure/compute/gpu-edge/gpu-edge-deployment.service.ts`

**Key Methods**:
- `deployToRegion()` - Deploy GPU edge nodes to region
- `getDeployment()` - Get deployment by ID
- `getAllActiveRegions()` - Get all active regions

### GpuEdgeRoutingService

Service for 6G network routing.

**Location**: `src/infrastructure/compute/gpu-edge/gpu-edge-routing.service.ts`

**Key Methods**:
- `calculateOptimalRoute()` - Calculate optimal 6G route
- `getRoute()` - Get route by ID
- `getRoutesForRegionPair()` - Get routes for region pair

### GpuEdgeMonitoringService

Service for node health and performance monitoring.

**Location**: `src/infrastructure/compute/gpu-edge/gpu-edge-monitoring.service.ts`

**Key Methods**:
- `performHealthCheck()` - Perform health check on node
- `getNodeMetrics()` - Get monitoring metrics for node
- `getRegionMetrics()` - Get monitoring metrics for region

## API Endpoints

### Node Management

- `POST /api/gpu-edge/node` - Create GPU edge node
- `GET /api/gpu-edge/node/:nodeId` - Get node by ID

### Deployment

- `POST /api/gpu-edge/deploy` - Deploy GPU edge nodes to region
- `GET /api/gpu-edge/regions` - Get all active regions

### Routing

- `POST /api/gpu-edge/route` - Calculate optimal 6G route

### Monitoring

- `POST /api/gpu-edge/monitor/health/:nodeId` - Perform health check on node
- `GET /api/gpu-edge/monitor/metrics/node/:nodeId` - Get monitoring metrics for node

## Database Schema

### GpuEdgeNode

GPU edge node record.

**Fields**:
- `nodeId` - Unique node identifier
- `nodeType` - Node type (MGN, QGN, ZKN, SAN)
- `regionId` - Region identifier
- `gpuCapacity` - GPU units
- `quantumSafeTunnelingEnabled` - Quantum-safe tunneling enabled

### GpuEdgeRegion

Region record for 325-region deployment.

**Fields**:
- `regionId` - Unique region identifier
- `regionName` - Region name
- `status` - Region status (active, inactive)

### GpuEdgeDeployment

Deployment record.

**Fields**:
- `deploymentId` - Unique deployment identifier
- `regionId` - Region identifier
- `nodeTypes` - Array of node types deployed
- `nodesCreated` - Array of created node IDs

### GpuEdgeNetwork

6G network route record.

**Fields**:
- `routeId` - Unique route identifier
- `estimatedLatency` - Estimated latency in milliseconds (<1ms)
- `quantumSafe` - Quantum-safe tunneling enabled

## Integration Points

- **DSCM-X**: Integrates with Distributed Sovereign Compute Mesh
- **Quantum Systems**: Quantum gateway nodes for quantum operations
- **Metaverse Systems**: Metaverse GPU nodes for rendering
- **ZK Validation**: ZK validation nodes for ledger validation

## Use Cases

### Metaverse Real-Time Rendering

Deploy MGN nodes across 325 regions for low-latency metaverse rendering.

### Quantum Proxy Operations

Deploy QGN nodes for quantum proxy server operations with quantum-safe tunneling.

### ZK Ledger Validation

Deploy ZKN nodes for zero-knowledge ledger validation across regions.

### AI Behavioral Engines

Deploy SAN nodes for AI behavioral engine execution.

## Example Usage

```typescript
import { gpuEdgeDeploymentService } from '@/infrastructure/compute/gpu-edge/gpu-edge-deployment.service';

// Deploy GPU edge nodes to region
const deployment = await gpuEdgeDeploymentService.deployToRegion({
  regionId: 'REGION-001',
  nodeTypes: ['MGN', 'QGN', 'ZKN', 'SAN'],
  gpuCapacityPerNode: 100,
  quantumSafeTunnelingEnabled: true,
});
```

## Status

✅ **Implemented** - Sub-Volume D is fully implemented and integrated with existing DBIS systems.