Fix windows again

crates/engine-cpu/src/lib.rs

@@ -51,6 +51,10 @@ pub enum EngineStatus {
     Cancelled {
         hash_count: u64,
     },
+    /// GPU device lost or unresponsive. Worker should exit permanently.
+    DeviceLost {
+        hash_count: u64,
+    },
 }
 
 /// Cancellation checker passed to search_range.

crates/engine-gpu/benches/gpu_engine_bench.rs

@@ -8,7 +8,7 @@ use std::sync::atomic::AtomicBool;
 
 fn bench_cpu_vs_gpu_small(c: &mut Criterion) {
     let cpu_engine = FastCpuEngine::new(10_000);
-    let gpu_engine = GpuEngine::try_new(10_000_000, 0).expect("Failed to init GPU");
+    let gpu_engine = GpuEngine::try_new(10_000_000, 0, false).expect("Failed to init GPU");
     let cancel_flag = AtomicBool::new(false);
     let cancel_check = AtomicBoolCancelCheck(&cancel_flag);
 
@@ -59,7 +59,7 @@ fn bench_cpu_vs_gpu_small(c: &mut Criterion) {
 
 fn bench_cpu_vs_gpu_medium(c: &mut Criterion) {
     let cpu_engine = FastCpuEngine::new(10_000);
-    let gpu_engine = GpuEngine::try_new(10_000_000, 0).expect("Failed to init GPU");
+    let gpu_engine = GpuEngine::try_new(10_000_000, 0, false).expect("Failed to init GPU");
     let cancel_flag = AtomicBool::new(false);
     let cancel_check = AtomicBoolCancelCheck(&cancel_flag);
 
@@ -110,7 +110,7 @@ fn bench_cpu_vs_gpu_medium(c: &mut Criterion) {
 
 fn bench_cpu_vs_gpu_large(c: &mut Criterion) {
     let cpu_engine = FastCpuEngine::new(10_000);
-    let gpu_engine = GpuEngine::try_new(10_000_000, 0).expect("Failed to init GPU");
+    let gpu_engine = GpuEngine::try_new(10_000_000, 0, false).expect("Failed to init GPU");
     let cancel_flag = AtomicBool::new(false);
     let cancel_check = AtomicBoolCancelCheck(&cancel_flag);
 
@@ -161,7 +161,7 @@ fn bench_cpu_vs_gpu_large(c: &mut Criterion) {
 
 fn bench_solution_finding(c: &mut Criterion) {
     let cpu_engine = FastCpuEngine::new(10_000);
-    let gpu_engine = GpuEngine::try_new(10_000_000, 0).expect("Failed to init GPU");
+    let gpu_engine = GpuEngine::try_new(10_000_000, 0, false).expect("Failed to init GPU");
     let cancel_flag = AtomicBool::new(false);
     let cancel_check = AtomicBoolCancelCheck(&cancel_flag);
 
@@ -212,7 +212,7 @@ fn bench_solution_finding(c: &mut Criterion) {
 
 fn bench_throughput_per_second(c: &mut Criterion) {
     let cpu_engine = FastCpuEngine::new(10_000);
-    let gpu_engine = GpuEngine::try_new(10_000_000, 0).expect("Failed to init GPU");
+    let gpu_engine = GpuEngine::try_new(10_000_000, 0, false).expect("Failed to init GPU");
     let cancel_flag = AtomicBool::new(false);
     let cancel_check = AtomicBoolCancelCheck(&cancel_flag);
 
@@ -262,7 +262,7 @@ fn bench_throughput_per_second(c: &mut Criterion) {
 }
 
 fn bench_gpu_batch_efficiency(c: &mut Criterion) {
-    let gpu_engine = GpuEngine::try_new(10_000_000, 0).expect("Failed to init GPU");
+    let gpu_engine = GpuEngine::try_new(10_000_000, 0, false).expect("Failed to init GPU");
     let cancel_flag = AtomicBool::new(false);
     let cancel_check = AtomicBoolCancelCheck(&cancel_flag);
 

crates/engine-gpu/examples/verify_nonce.rs

@@ -26,7 +26,7 @@ fn main() {
 
     // 3. Verify with GPU engine
     log::info!("Initializing GPU engine...");
-    let gpu_engine = GpuEngine::try_new(10_000_000, 0).expect("Failed to init GPU");
+    let gpu_engine = GpuEngine::try_new(10_000_000, 0, false).expect("Failed to init GPU");
 
     // Search a small range around the valid nonce
     let gpu_range = Range {
@@ -56,6 +56,9 @@ fn main() {
         EngineStatus::Cancelled { .. } => {
             log::error!("FAILURE: GPU search cancelled!");
         }
+        EngineStatus::DeviceLost { .. } => {
+            log::error!("FAILURE: GPU device lost!");
+        }
         EngineStatus::Running { .. } => {
             log::error!("FAILURE: GPU returned Running status!");
         }