qualia_core_db/specialized_libs/qpu_bridge/
job.rs

1//! QPU Bridge - Quantum Processing Unit Bridge for Exact Quantum Computing
2//!
3//! This module provides a bridge to remote quantum computing resources (IBM Quantum API)
4//! via the NativeQuantumDft module, enabling exact Hamiltonian mapping and quantum
5//! calculations that cannot be approximated on classical hardware.
6//!
7//! Architecture:
8//! - Time-metered proxy for IBM Quantum API
9//! - Job submission and result retrieval
10//! - Authentication and rate limiting
11//! - Error handling and fallback mechanisms
12
13use crate::lexicon::generate_60bit_token;
14use core::ptr;
15
16/// QPU Bridge Manager - Main interface for quantum computing operations
17///
18/// This struct manages connections to remote quantum computing resources while
19/// maintaining strict zero-allocation invariants and security requirements.
20use super::*;
21
22#[repr(C)]
23pub struct QPUJobManager {
24    /// Active jobs queue
25    pub(crate) active_jobs: [QPUJob; 64],
26    /// Completed jobs queue
27    pub(crate) completed_jobs: [QPUJob; 64],
28    /// Job counters
29    pub(crate) job_counters: QPUJobCounters,
30    /// Job submission state
31    pub(crate) submission_state: QPUSubmissionState,
32}
33
34#[repr(C)]
35#[derive(Clone, Copy)]
36pub struct QPUJob {
37    /// Unique job identifier
38    pub(crate) job_id: [u8; 64],
39    /// Job type and parameters
40    pub(crate) job_type: QPUJobType,
41    /// Job priority
42    pub(crate) priority: QPUJobPriority,
43    /// Submission timestamp
44    pub(crate) submitted_at: u64,
45    /// Expected completion time
46    pub(crate) expected_completion: u64,
47    /// Current status
48    pub(crate) status: QPUJobStatus,
49    /// Result data pointer (when available)
50    pub(crate) result_data: *const u8,
51    /// Result data size
52    pub(crate) result_size: usize,
53}
54
55#[repr(u8)]
56#[derive(Clone, Copy, PartialEq)]
57pub enum QPUJobType {
58    HamiltonianMapping = 0,
59    QuantumStatePreparation = 1,
60    QuantumMeasurement = 2,
61    QuantumCircuitExecution = 3,
62    VariationalQuantumEigensolver = 4,
63    QuantumApproximateOptimization = 5,
64}
65
66#[repr(u8)]
67#[derive(Clone, Copy, PartialEq)]
68pub enum QPUJobPriority {
69    Low = 0,
70    Normal = 1,
71    High = 2,
72    Critical = 3,
73}
74
75#[repr(u8)]
76#[derive(Clone, Copy, PartialEq)]
77pub enum QPUJobStatus {
78    Queued = 0,
79    Running = 1,
80    Completed = 2,
81    Failed = 3,
82    Cancelled = 4,
83    Timeout = 5,
84}
85
86#[repr(C)]
87#[derive(Clone, Copy)]
88pub struct QPUJobCounters {
89    /// Total jobs submitted
90    pub(crate) total_submitted: u64,
91    /// Total jobs completed
92    pub(crate) total_completed: u64,
93    /// Total jobs failed
94    pub(crate) total_failed: u64,
95    /// Currently running jobs
96    pub(crate) running_jobs: u32,
97    /// Average completion time (microseconds)
98    pub(crate) avg_completion_time_us: u32,
99}
100
101#[repr(u8)]
102#[derive(Clone, Copy, PartialEq)]
103pub enum QPUSubmissionState {
104    Idle = 0,
105    Submitting = 1,
106    Waiting = 2,
107    Retrieving = 3,
108}
109
110#[repr(C)]
111pub struct QPURateLimiter {
112    /// Jobs per second limit
113    pub(crate) jobs_per_second: u32,
114    /// Current job count in time window
115    pub(crate) current_jobs: u32,
116    /// Time window start timestamp
117    pub(crate) window_start: u64,
118    /// Time window duration (seconds)
119    pub(crate) window_duration: u32,
120    /// Quota remaining
121    pub(crate) quota_remaining: u32,
122}
123
124#[repr(C)]
125pub struct QPUJobSubmissionParams {
126    /// Job type
127    pub(crate) job_type: QPUJobType,
128    /// Priority
129    pub(crate) priority: QPUJobPriority,
130    /// Input data pointer
131    pub(crate) input_data: *const u8,
132    /// Input data size
133    pub(crate) input_size: usize,
134    /// Expected output size
135    pub(crate) expected_output_size: usize,
136    /// Timeout in seconds
137    pub(crate) timeout: u32,
138}
139
140#[repr(C)]
141pub struct QPUJobResult {
142    /// Job ID
143    pub(crate) job_id: [u8; 64],
144    /// Success flag
145    pub(crate) success: bool,
146    /// Result data pointer
147    pub(crate) result_data: *const u8,
148    /// Result data size
149    pub(crate) result_size: usize,
150    /// Execution time in microseconds
151    pub(crate) execution_time_us: u64,
152    /// Quantum volume used
153    pub(crate) quantum_volume: u32,
154    /// Error code
155    pub(crate) error_code: QPUErrorCode,
156}
157
158impl QPUJobManager {
159    #[inline(always)]
160    pub const fn default() -> Self {
161        Self {
162            active_jobs: [QPUJob::default(); 64],
163            completed_jobs: [QPUJob::default(); 64],
164            job_counters: QPUJobCounters::default(),
165            submission_state: QPUSubmissionState::Idle,
166        }
167    }
168
169    pub fn allocate_job_slot(&mut self) -> Result<[u8; 64], QPUBridgeError> {
170        // Find empty slot in active jobs
171        for i in 0..64 {
172            if self.active_jobs[i].job_id[0] == 0 {
173                // Generate unique job ID
174                let job_id = self.generate_job_id(i);
175                return Ok(job_id);
176            }
177        }
178        Err(QPUBridgeError::QueueFull)
179    }
180
181    pub fn release_job_slot(&mut self, job_id: [u8; 64]) {
182        // Find and clear job slot
183        for i in 0..64 {
184            if self.active_jobs[i].job_id == job_id {
185                self.active_jobs[i] = QPUJob::default();
186                break;
187            }
188        }
189    }
190
191    pub fn add_active_job(&mut self, job: QPUJob) {
192        // Add job to active queue
193        for i in 0..64 {
194            if self.active_jobs[i].job_id == job.job_id {
195                self.active_jobs[i] = job;
196                self.job_counters.running_jobs += 1;
197                break;
198            }
199        }
200    }
201
202    pub fn find_active_job(&self, job_id: &[u8; 64]) -> Result<usize, QPUBridgeError> {
203        for i in 0..64 {
204            if self.active_jobs[i].job_id == *job_id {
205                return Ok(i);
206            }
207        }
208        Err(QPUBridgeError::JobNotFound)
209    }
210
211    pub fn move_to_completed(&mut self, active_index: usize) {
212        // Move job from active to completed
213        let job = self.active_jobs[active_index];
214
215        // Find empty slot in completed jobs
216        for i in 0..64 {
217            if self.completed_jobs[i].job_id[0] == 0 {
218                self.completed_jobs[i] = job;
219                break;
220            }
221        }
222
223        // Clear active slot
224        self.active_jobs[active_index] = QPUJob::default();
225        self.job_counters.running_jobs -= 1;
226    }
227
228    fn generate_job_id(&self, slot_index: usize) -> [u8; 64] {
229        let mut job_id = [0u8; 64];
230
231        // Use slot index and timestamp to generate unique ID
232        let timestamp: u64 = 0; // Would use actual timestamp
233        let hash = generate_60bit_token(&timestamp.to_le_bytes()) as u64;
234
235        // Convert to bytes
236        for i in 0..8 {
237            job_id[i] = (hash >> (i * 8)) as u8;
238        }
239
240        // Add slot index
241        job_id[8] = slot_index as u8;
242
243        job_id
244    }
245}
246
247impl QPUJob {
248    #[inline(always)]
249    pub const fn default() -> Self {
250        Self {
251            job_id: [0u8; 64],
252            job_type: QPUJobType::HamiltonianMapping,
253            priority: QPUJobPriority::Normal,
254            submitted_at: 0,
255            expected_completion: 0,
256            status: QPUJobStatus::Queued,
257            result_data: ptr::null(),
258            result_size: 0,
259        }
260    }
261}
262
263impl QPUJobCounters {
264    #[inline(always)]
265    pub const fn default() -> Self {
266        Self {
267            total_submitted: 0,
268            total_completed: 0,
269            total_failed: 0,
270            running_jobs: 0,
271            avg_completion_time_us: 0,
272        }
273    }
274}
275
276impl QPURateLimiter {
277    #[inline(always)]
278    pub const fn default() -> Self {
279        Self {
280            jobs_per_second: 10,
281            current_jobs: 0,
282            window_start: 0,
283            window_duration: 1,
284            quota_remaining: 1000,
285        }
286    }
287
288    pub fn can_submit_job(&mut self, current_time: u64) -> bool {
289        // Check if window has expired
290        if current_time - self.window_start > (self.window_duration as u64 * 1_000_000) {
291            // Reset window
292            self.window_start = current_time;
293            self.current_jobs = 0;
294        }
295
296        // Check rate limit and quota
297        self.current_jobs < self.jobs_per_second && self.quota_remaining > 0
298    }
299
300    pub fn record_job_submission(&mut self, _current_time: u64) {
301        self.current_jobs += 1;
302        self.quota_remaining -= 1;
303    }
304}
qualia_core_db/specialized_libs/qpu_bridge/job.rs

qualia_core_db/specialized_libs/qpu_bridge/
job.rs
