Hi, I’m experiencing an (apparently known) error using `BSON`

to try to save very large files, where it throws an error: `InexactError: trunc(Int32, 2299858984)`

, when the file to be saved is too large. This has been discussed previously, does anyone know if a fix has been developed?

An obvious workaround would be to disassemble the file into pieces when writing it out, and reassemble it back together when reading it in… unfortunately, I don’t know how to do this with my data set(s), which is not a simple array, but an `ODESolution`

object. In particular, it is the result of solving a 2-dimensional partial differential equation (PDE), which I have broken into several thousand coupled ODE’s, each of which is continuous for interpolation in time `t`

, with each located at a different grid point with discrete values of `x`

.

Does anyone know how to breakdown, write, read, and reassemble this ODESolution object correctly, without losing the interpolation properties of the ODE’s in time? (Or better yet, a way to just fix the BSON problem?)

Here is a sample of the code generating the error:

```
prob = ODEProblem(Equation!, InitCondMatrix, tspan, Params)
soln = DifferentialEquations.solve(prob, Rodas5(), dense=true,
reltol=1e-12, abstol=1e-12, maxiters = 1e7, progress=true)
BSON.@save string(FilesDir, "soln.bson") soln
```

Note that `InitCondMatrix`

contains initial Position & Velocity data for each discrete value of x, and is type `Array{Float64,2}`

with size `(NpointsInX, 2)`

.

Thanks for any info!