Wait for GPU events using synchronize

Author: mwarusz

src/backends/cuda.jl

@@ -49,7 +49,7 @@ struct CudaEvent <: Event
 end
 function wait(ev::CudaEvent, progress=nothing)
     if progress === nothing
-        CUDAdrv.wait(ev.event)
+        CUDAdrv.synchronize(ev.event)
     else
         while !CUDAdrv.query(ev.event)
             progress()
@@ -239,4 +239,4 @@ end
     ptr = pointer(arr) + (I[1].start-1)*sizeof(T)
     len = I[1].stop - I[1].start + 1
     return ConstCuDeviceArray{T,1,A}(len, ptr)
-end
+end