new config schema

TODO.md

@@ -1,8 +1,10 @@
 # TODO:
 
-- fold_slice: load diffractions / hdf5 files; change only param per job
+- fold_slice:
+    - load diffractions / hdf5 files; change only param per job
     - restructure `FoldSlicePtychoEngine.__init__()` to load data but not params
         - write new `prepare_data.m`
+    - start fold_slice from config.yaml instead of setup.txt
 - unify `BOEngine.__init__()`
 - BO train_x/y transfer between engines for single job
 - multi-GPU dispatcher
@@ -15,10 +17,14 @@
 - separate `config` into `bo_config` and `ptycho_config`; let `BOEngine` have no knowledge of ptychography and vice versa.
 - add GPU version of ExamplePtychoEngine
 - change `PtychoEngine.metric()` to accept list of names and return dict
-- custom sequence for BO
-    - design yaml first
-
+- separation of available GPUs and parallel BO batches
+- prepare next batch for efficient GPU use
+- rename `BOEngine` to `Sampler`
+- organize results/
+    - possibly: `[dataset name]/[salient config]-[date]/`
 
 
 # TODAY:
-- `UniformBOEngine`
+- `GridSampler`
+    - `.__init__()` should create a grid
+    - `.ask()` should remove those items from the grid