# Is there a way to serialize a CURAND RNG?
**URL:** https://discourse.julialang.org/t/is-there-a-way-to-serialize-a-curand-rng/34493
**Category:** GPU
**Created:** [February 11, 2020, 11:34pm UTC](https://discourse.julialang.org/t/is-there-a-way-to-serialize-a-curand-rng/34493 "2020-02-11T23:34:32Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@marius311](https://discourse.julialang.org/u/marius311)
#### Post date: [February 11, 2020, 11:34pm UTC](https://discourse.julialang.org/t/is-there-a-way-to-serialize-a-curand-rng/34493/1 "2020-02-11T23:34:32Z")
With Base, I can take the RNG returned by `Random.default_rng()`, write it to file with eg JLD2, then later reload it and reproduce my random number sequence from that point.
Is something like this possible with CURAND? I know I can do e.g. `CURAND.seed!(0)` and always get same random sequence after that, but I can’t figure out how to just save the current random state.
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### Author:  [@maleadt](https://discourse.julialang.org/u/maleadt)
#### Post date: [February 12, 2020, 12:32pm UTC](https://discourse.julialang.org/t/is-there-a-way-to-serialize-a-curand-rng/34493/2 "2020-02-12T12:32:33Z")
The CURAND API doesn’t seem to offer a way to get the current seed and offset, so no,
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### Author:  [@bjarthur](https://discourse.julialang.org/u/bjarthur)
#### Post date: [October 11, 2021, 9:15pm UTC](https://discourse.julialang.org/t/is-there-a-way-to-serialize-a-curand-rng/34493/3 "2021-10-11T21:15:16Z")
serializing RNGs seems to work fine with the new CUDA.RNG:
```julia
julia> using CUDA, JLD2
julia> rng = CUDA.RNG()
CUDA.RNG(0x0372dcb6, 0x00000000)
julia> jldsave("rng.jld2"; rng)
julia> rand(rng, 3)
3-element CuArray{Float32, 1, CUDA.Mem.DeviceBuffer}:
0.29187703
0.54524505
0.7788844
julia> rand(rng, 3)
3-element CuArray{Float32, 1, CUDA.Mem.DeviceBuffer}:
0.3157618
0.10146761
0.30569053
julia> rng = load("rng.jld2")["rng"]
CUDA.RNG(0x0372dcb6, 0x00000003)
julia> rand(rng, 3)
3-element CuArray{Float32, 1, CUDA.Mem.DeviceBuffer}:
0.29187703
0.54524505
0.7788844
```