Changes between Version 3 and Version 4 of IppToPspsDatastorePV3Descriptions

Timestamp:

Nov 5, 2015, 6:09:59 PM (11 years ago)

Author:

chambers

Comment:

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IppToPspsDatastorePV3Descriptions

@@ -1 @@
-There is a desire to organize the datastores for PV3 into chunks that are of a similar size of data, organized by dxlayer. This describes Ken's suggested tessellation.
+There is a desire to organize the datastores for PV3 into sky chunks that are of a similar size of data, organized by dxlayer and load merge machine. This describes Ken's suggested datastore tessellation,
+modified by Heather. 
 
 == Step 1 ==
 
-Subdivide into the 32 layers. Each of the 32 layers has an equal amount of data in each layer (so, the thickness of the layers will vary, in order to increase/decrease the amount of data.
+Subdivide sky into the 32 declination layers. Each of the 32 layers has an equal amount of data in each layer (so, the thickness of the layers will vary, in order to increase/decrease the amount of data. These layers correspond to one each of the new PSPS Load/Merge machines. 
 
 [[Image(Kens1.png, 600px)]]
@@ -10 +11 @@
 == Step 2 ==
 
-There are 8 DXlayer machines, each dxlayer machine gets 4 of the layers.
+There are 8 DXlayer machines, each dxlayer machine is assigned to 4 contiguous Declination of the layers. Alternatively, the 8 DXlayers are subdivided into 4 layers in declination, making the 32 in total.
 
 [[Image(kens3.png, 600px)]]
@@ -60 +61 @@
 
 
-