Changes between Version 6 and Version 7 of ResearchProjects

Timestamp:

May 24, 2010, 10:27:31 AM (14 years ago)

Author:

davea

Comment:

--

ResearchProjects

@@ -8 +8 @@
 An out-of-date list of conferences related to volunteer computing
 is [ConferenceList here].
+
+== Tools ==
+
+The following tools may be useful:
+
+ * The [ClientSim BOINC client simulator].
+   This models a single client attached to one or more projects.
+   It's useful for studying client scheduling policies.
+ * The [http://gcl.cis.udel.edu/projects/emboinc/index.php EmBOINC] BOINC server emulator.
+   This models a BOINC server and a population of clients.
+   It's useful for studying server scheduling policies.
+ * The [http://boinc.berkeley.edu/trac/browser/trunk/boinc/sched/sched_driver.cpp scheduler driver]
+   can be used to measure the maximum throughput (jobs per second) of a BOINC back end.
 
 == Data-intensive volunteer computing ==
@@ -133 +146 @@
 even while the computer is in use,
 without impacting the performance of user-visible applications.
-
-== Estimating job completion times in a heterogeneous environment ==
-
-Accurate job completion time estimates are essential to BOINC.
-Underestimates can waste computation,
-and overestimates can cause resource idleness.
-BOINC's current mechanisms for estimating job completion times
-have various shortcomings:
-a) they require projects to estimate job FLOPS requirements in advance,
-and to estimate the FLOPS performance of applications on particular hosts;
-most projects don't have the ability or willingness to provide
-accurate estimates;
-b) they are based on peak hardware performance
-(e.g., benchmark values), and actual application performance
-can be wildly different, especially for multi-threaded and GPU applications.
-
-The project is to design, implement, and study a system that automatically
-estimates job completion times on heterogeneous hosts,
-and that provides estimates of the actual number of FLOPS performed
-by a given job.