Changes between Version 12 and Version 13 of GpuWorkFetch

Timestamp:

Dec 26, 2008, 12:38:01 PM (15 years ago)

Author:

davea

Comment:

--

GpuWorkFetch

@@ -72 +72 @@
 This is stored in an object of class PRSC_WORK_FETCH.
 
-Data members of PRSC_WORK_FETCH (set by rr_simulation()):
+Data members of PRSC_WORK_FETCH
+
+'''ninstances'''
+
+Used/set by rr_simulation()):
 
 '''double shortfall''': shortfall for this resource
@@ -84 +88 @@
 and clear shortfall.
 
+'''set_nidle()''': called by RR sim after initial job assignment.
+Set nidle to # of idle instances.
+
+'''accumulate_shortfall(dt)''': called by RR sim for each time interval during work buf period.
+{{{
+nidle_now = ninstances - instances in use
+shortfall += dt*(nidle_now)
+for each project p not backed off for this PRSC
+    add_proj_shortfall(p, dt)
+}}}
 ------------
 '''prepare()''': called before exists_fetchable_project().
@@ -126 +140 @@
 }}}
 
-'''accumulate_shortfall(dt, i, n)''':
-{{{
-i = instances in use, n = total instances
-nidle = n - i
-max_nidle max= nidle
-shortfall += dt*(nidle)
-for each project p for which count_towards_share(p)
-    add_proj_shortfall(p, dt)
-}}}
-
 Each PRSC also needs to have some per-project data.
 This is stored in an object of class PRSC_PROJECT_DATA.
@@ -149 +153 @@
 And the following transient members (used by rr_simulation()):
 
+'''double share''': # of instances this project should get based on resource share
+relative to the set of projects not backed off for this PRSC.
+
+'''instances_used''': # of instances currently being used
+
 '''double shortfall'''
-
-'''bool runnable'''
-
-'''max deficit'''
-
-'''double share''': # of instances this project should get based on RS
-
-'''instances_used''': # of instances currently being used
 
 === debt accounting ===
@@ -170 +171 @@
 cpu_work_fetch.rr_init()
 cuda_work_fetch.rr_init()
+
+compute initial assignment of jobs
+cpu_work_fetch.set_nidle();
+cuda_work_fetch.set_nidle();
+
 do simulation as current
 on completion of an interval dt