Changeset 31524 for branches/eam_branches/ipp-20110505/Ohana/src/relphot/doc/allsky.txt

Timestamp:

May 11, 2011, 10:52:00 AM (15 years ago)

Author:

eugene

Message:

plug some leaks, move CopyMeasure,AverageTiny out of functions (for speed)

File:

• branches/eam_branches/ipp-20110505/Ohana/src/relphot/doc/allsky.txt (modified) (1 diff)

branches/eam_branches/ipp-20110505/Ohana/src/relphot/doc/allsky.txt

@@ +1 @@
+
+2011.05.10
+
+  Looking into them memory usage of relphot:
+  AverageTiny = 32 bytes (including 8 byte padding)
+  MeasureTiny = 56 bytes (including 8 byte padding)
+  Image Indexes:
+    bin   : Nmeasure * off_t
+    clist : Nmeasure * off_t
+    mlist : Nmeasure * off_t
+  Mosaic Indexes:
+    bin   : Nmeasure * off_t
+    clist : Nmeasure * off_t
+    mlist : Nmeasure * off_t
+  Total:
+    32 bytes * Naverage (values)
+    56 bytes * Nmeasure (values)
+    64 bytes * Nmeasure (indexes)
+
+  In my test run, I have 3.3M average + 37.6M measure:
+    2.1GB values
+    2.2GB indexes
+
+  This matches the memory usage graph.  But, after the indexes have
+  been loaded, the memory footprint grows (slowly) by another 1GB as
+  the processing runs along.
+
+
+using 23153493 of 640663697 stars (192585953 of 289672671 measurements)
+using  3306896 of  48399614 stars ( 37582679 of 193863612 measurements)
+
+
 
 2011.04.12