GPU: Fix time measurements of reco steps, synchronization was missing

davidrohr · davidrohr · commit bc82c206db12 · 2025-11-26T14:45:19.000+01:00
diff --git a/GPU/GPUTracking/Global/GPUChain.h b/GPU/GPUTracking/Global/GPUChain.h
@@ -297,6 +297,7 @@ inline int32_t GPUChain::runRecoStep(RecoStep step, S T::*func, Args... args)
     }
     int32_t retVal = (reinterpret_cast<T*>(this)->*func)(args...);
     if (timer) {
+      SynchronizeGPU();
       timer->timerTotal.Stop();
       timer->timerCPU += (double)(std::clock() - c) / CLOCKS_PER_SEC;
     }

Original file line number	Diff line number	Diff line change
`@@ -297,6 +297,7 @@ inline int32_t GPUChain::runRecoStep(RecoStep step, S T::*func, Args... args)`
`297`	`297`	`}`
`298`	`298`	`int32_t retVal = (reinterpret_cast<T>(this)->func)(args...);`
`299`	`299`	`if (timer) {`
	`300`	`+ SynchronizeGPU();`
`300`	`301`	`timer->timerTotal.Stop();`
`301`	`302`	`timer->timerCPU += (double)(std::clock() - c) / CLOCKS_PER_SEC;`
`302`	`303`	`}`