Changes between Version 8 and Version 9 of GpuWorkFetch

Timestamp:

Dec 26, 2008, 11:26:46 AM (16 years ago)

Author:

davea

Comment:

--

GpuWorkFetch

@@ -138 +138 @@
 '''backoff timer'''*:  how long to wait until ask project for work only for this rsc
 double this any time we ask only for work for this rsc and get none
-(maximum 24 hours)
-clear it when we have a job that uses the rsc
+(maximum 24 hours).
+Clear it when we have a job that uses the PRSC.
 
 '''double share''': # of instances this project should get based on RS
@@ -145 +145 @@
 '''double long_term_debt*'''
 
-
+=== Per-resource-type backoff
+
+We need to handle the situation where there's a GPU shortfall
+but no projects are supplying GPU work
+(for either permanent or transient reasons).
+We don't want an overall backoff from those projects.
+Insteac, we maintain separate backoff timer per PRSC.
 
 === debt accounting ===
@@ -158 +164 @@
 do simulation as current
 on completion of an interval dt
-        cpu_work_fetch.accumulate_shortfall(dt)
-        cuda_work_fetch.accumulate_shortfall(dt)
-}}}
-
---------------------
-scheduler request msg
-double work_req_seconds
-double cuda_req_seconds
-bool send_only_cpu
-bool send_only_cuda
-double ninstances_cpu
-double ninstances_cuda
-
---------------------
-work fetch
-
-We need to deal w/ situation where there's GPU shortfall
-        but no projects are supplying GPU work.
-        We don't want an overall backoff from those projects.
-        Solution: maintain separate backoff timer per resource
-
+   cpu_work_fetch.accumulate_shortfall(dt)
+   cuda_work_fetch.accumulate_shortfall(dt)
+}}}
+
+
+=== Work fetch ===
+
+{{{
 send_req(p)
         switch cpu_work_fetch.priority
@@ -203 +196 @@
                         send_req(p)
                         return
-
---------------------
-When get scheduler reply
-        if request.
---------------------
+}}}
+
+=== Handling scheduler reply ===
+
+if request.
+
 scheduler
 }}}