[julia-users] CUDART and CURAND problem on running the same "do" loop twice

[Joaquim Masset Lacombe Dias Garcia]

I was playing with the GPU (in both windows and mac) libraries and I came 
up with the following errors:
The first time I execute the do loop, every thing goes well.
But If i try a second time in a row I get this invalid pointer error.

I got the same error in all my do loops, any ideas?

best,
Joaquim

*My code running on terminal:*

julia> using CUDArt
julia> using CURAND
julia> result = devices(dev->capability(dev)[1]>=2) do devlist
           d_a = curand(Float32, 1000);
           a = to_host(d_a);
       end

1000-element Array{Float64,1}:
 0.438451
 0.460365
 0.250215
 0.494744
 0.0530111
 0.337699
 0.396763
 0.874419
 0.482167
 0.0428398
 ?
 0.563937
 0.80706
 0.190015
 0.334969
 0.622164
 0.710596
 0.0125895
 0.990388
 0.467796
 0.24313

julia> result = devices(dev->capability(dev)[1]>=2) do devlist
           d_a = curand(Float32, 1000);
           a = to_host(d_a);
       end
WARNING: CUDA error triggered from:

 in checkerror at 
C:\Users\joaquimgarcia\.julia\v0.4\CUDArt\src\libcudart-6.5.jl
:15
 in copy! at C:\Users\joaquimgarcia\.julia\v0.4\CUDArt\src\arrays.jl:152
 in to_host at C:\Users\joaquimgarcia\.julia\v0.4\CUDArt\src\arrays.jl:87
 in anonymous at none:3
 in devices at 
C:\Users\joaquimgarcia\.julia\v0.4\CUDArt\src\device.jl:61ERROR:
Launch failed, perhaps due to an invalid pointer
 in checkdrv at C:\Users\joaquimgarcia\.julia\v0.4\CUDArt\src\module.jl:6
 in close at C:\Users\joaquimgarcia\.julia\v0.4\CUDArt\src\device.jl:136
 in devices at C:\Users\joaquimgarcia\.julia\v0.4\CUDArt\src\device.jl:63