On Sat, Jul 4, 2020, 2:39 PM Neal Becker <ndbeck...@gmail.com> wrote:
> > > On Sat, Jul 4, 2020 at 1:56 PM Robert Kern <robert.k...@gmail.com> wrote: > .... > >> >> 3. Is there a way of telling the number of draws a generator did? >>> >>> The use case is to checkpoint the number of draws and `.advance` the >>> bit generator when resuming from the checkpoint. (The runs are longer >>> then the batch queue limits). >>> >> >> There are computations you can do on the internal state of PCG64 and >> Philox to get this information, but not in general, no. I do recommend >> serializing the Generator or BitGenerator (or at least the BitGenerator's >> .state property, which is a nice JSONable dict for PCG64) for checkpointing >> purposes. Among other things, there is a cached uint32 for when odd numbers >> of uint32s are drawn that you might need to handle. The state of the >> default PCG64 is much smaller than MT19937. It's less work and more >> reliable than computing that distance and storing the original seed and the >> distance. >> >> -- >> Robert Kern >> > > Sorry, you lost me here. If I want to save, restore the state of a > generator, can I use pickle/unpickle? > Absolutely.
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