Changes between Version 15 and Version 16 of IppToPspsDatastorePV3Descriptions

Timestamp:

Nov 5, 2015, 11:22:07 PM (11 years ago)

Author:

chambers

Comment:

--

IppToPspsDatastorePV3Descriptions

@@ -30 +30 @@
 
 Each of these segments corresponds to a datastore. Each datastore is of the same size, and roughly maps to 1 dxlayer machine.  
+(note - i think better to for DS label to have a (x,y), because that is how we will load and merge. i.e. 
+DS01-1 is most north and starts at RA >= 0. A SLICE is a sequential set of chunks in increasing RA, with a single chunk from each DXLAYER. )
+labels in plots need to be adjusted. We will then Load by SLICE. i.e  the first 8 datastores cover a complete vertical region covering from Dec 90 to -30 8 chunks of batches. 
+The SLICES will eventually be mismatched horizontally because of the density of sources, but that is fine. After a complete SLICE with 8 DXLAYERS has Loaded we will MERGE. So the number of Merges will by definition be either 6, 12 or 24 depending on batch type as per the table below. 
+
 
 [[Image(Kens4.png, 600px)]]
@@ -49 +54 @@
 
 
-|| type || dxlayers || segments per dxlayer || total datastores || load order || approx number || approx size ||
+|| type || dxlayers || slices per dxlayer || total datastores || load order || approx number || approx size ||
 || OB   || 8        || 6                                     || 48                    ||  1st            ||        ||  ||
 || ST   || 8        || 12                                    || 96                    ||  2nd           ||        ||  ||